identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
0705B36DFFDC1C0CF20AA1D403DB499B.text	0705B36DFFDC1C0CF20AA1D403DB499B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus Loew 1861	<div><p>Genus Diostracus Loew, 1861</p><p>Diagnosis</p><p>The genus is very polymorphic and characterized by the following combination of characters: body dark and stout, medium- to large-sized; palpus usually enlarged, loosely applied on proboscis; proboscis bulky; antennal scape glabrous or setose dorsally; arista-like stylus usually dorsal, sometimes basodorsal or subapical to apical; posterior mesonotum flattened; acrostichal setae absent; 4–6 dorsocentral bristles variable in length; sutural and postsutural, some notopleural, supra-alar and post-alar bristles sometimes absent or reduced; scutellum with 1–2 pairs of strong bristles and with some short lateral setae or hairs, sometimes with three pairs of long bristles; mid and hind coxae without bristle on the outer side; legs often modified; tarsi with more or less modified empodium and claws, usually without pulvilli; wing elongate and wide, sometimes modified in males; costa ended beyond tip of wing; crossvein dm-cu longer than distal section of CuA 1 vein, sometimes strongly sinuate; M 1+2 usually slightly convex anteriorly, often irregularly curved, more or less parallel to R</p><p>4+5</p><p>, at least partly behind dm-cu.</p><p>Remarks</p><p>The genus Sphyrotarsus Mik, 1874 includes 5 species from the European Alps, one Caucasian species and one Pamiran species. It was diagnosed by scape glabrous dorsally; tarsi with reduced empodium and without pulvilli; M</p><p>1+2</p><p>and R</p><p>4+5</p><p>are not strictly parallel to each other (Parent 1938); scutellum with 3 pairs of bristles (Negrobov 1978). Furthermore, the Pamiran subgenus Takagia Negrobov, 1973 (of Sphyrotarsus), was diagnosed by elongated antennal postpedicel with arista apical, somewhat widened at apex in male; sutural bristle absent; one supra-alar bristle; scutellum with 2 pairs of bristles (Negrobov 1973, 1978). Nevertheless, all these characters are rather variable and can be found in East Asian species of Diostracus . The monotypic Caucasian genus Lagodechia Negrobov &amp; Tsurikov, 1996 was diagnosed also by variable characters of face, mesonotal setation, wing venation and morphology of abdomen (Negrobov &amp; Tsurikov 1996). In addition, some characters of L. spinulifera were incorrectly described, as follows from the illustrations published by Grichanov et al. (2011a, b). I think the diagnostic characters of these taxa have low generic significance and regard Lagodechia, Sphyrotarsus and Takagia (now Ozmena Özdikmen, 2010) as subgenera of Diostracus . Accepting a new concept of the genus, I associate 97 species with Diostracus, of which 64 occur in the Oriental Region, 30 in the Palaearctic and 3 in the Nearctic Region. The flies of the genus are all torrenticolous in habitat.</p></div>	https://treatment.plazi.org/id/0705B36DFFDC1C0CF20AA1D403DB499B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDF1C0CF184A1CF02724DD7.text	0705B36DFFDF1C0CF184A1CF02724DD7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Diostracus) leucostomus (Loew 1861)	<div><p>Diostracus (Diostracus) leucostomus (Loew, 1861)</p><p>Liancalus leucostomus Loew, 1861b: 348 .</p><p>Thinophilus nigripes Strobl, 1898: 219 . — Negrobov 1973: 1518 (synonym of Asphyrotarsus leucostomus, redescription of type). — Type locality: Styria, Sirbitzkogel, Austria.</p><p>Asphyrotarsus leucostomus – Oldenberg 1916: 193. — Parent 1938: 312.</p><p>Diostracus leucostomus – Negrobov 1978: 411.</p><p>Diostracus nigripes – Negrobov 1978: 411.</p><p>Type locality</p><p>Kärnthen, Austria.</p><p>Distribution</p><p>Austria, France, Italy, Switzerland.</p></div>	https://treatment.plazi.org/id/0705B36DFFDF1C0CF184A1CF02724DD7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDF1C0CF23EA7E002DF4F86.text	0705B36DFFDF1C0CF23EA7E002DF4F86.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus Loew 1861	<div><p>Subgenus Diostracus Loew, 1861</p><p>Diostracus Loew, 1861a: 43; Takagi 1968: 35 (diagnosis), 51 (redescription of type species). — Grichanov et al. 2011b: 22 (diagnosis).</p><p>Asphyrotarsus Oldenberg, 1916: 193 . — Negrobov 1978: 406 (synonym of Diostracus Loew, 1861). — Type species: Liancalus leucostomus Loew, 1861 (original designation).</p><p>Diagnosis</p><p>At present the nominotypical subgenus differs from other subgenera in having a dorsally setose antennal scape. It is worth noting that many Asian Diostracus species were described with a glabrous scape (e.g., Saigusa 1984, 1995; Saigusa et al. 1997; Yang et al. 2011).</p><p>Type species</p><p>Diostracus prasinus Loew, 1861 (by monotypy).</p></div>	https://treatment.plazi.org/id/0705B36DFFDF1C0CF23EA7E002DF4F86	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDF1C0DF1DFA23C043749E0.text	0705B36DFFDF1C0DF1DFA23C043749E0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lagodechia Negrobov & Tsurikov 1996	<div><p>Subgenus Lagodechia Negrobov &amp; Tsurikov, 1996, stat. nov.</p><p>Lagodechia Negrobov &amp; Tsurikov [as Zurikov], 1996: 632. — Grichanov et al. 2011b: 23 (diagnosis).</p><p>Diagnosis</p><p>Describing a new genus, Negrobov &amp; Tsurikov (1996) listed diagnostic characters that can be found in many Diostracus species (e.g., Saigusa 1984, 1995; Saigusa et al. 1997; Yang et al. 2011). The following characters of generic importance were listed in the original description of Lagodechia, but were not obvious on pictures made by O. Selivanova from type material (Grichanov et al. 2011a, b): antennal scape has dorsal projection; distance between scutellum and 1 st tergum is 3 times as long as scutellum. Negrobov &amp; Tsurikov (1996) also found important differences in the female oviscapt of Lagodechia spinulifera and Diostracus subalpinus (Negrobov, 1973) . Unfortunately, D. subalpinus (described from the Baikal Lake environs) is the only Diostracus species with illustrated female genitalia. The status of D. subalpinus and D. spinulifer needs further clarification.</p><p>Type species</p><p>Diostracus spinulifer Negrobov &amp; Tsurikov, 1988 (original designation).</p></div>	https://treatment.plazi.org/id/0705B36DFFDF1C0DF1DFA23C043749E0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDE1C0DF138A62D01064F43.text	0705B36DFFDE1C0DF138A62D01064F43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Lagodechia) spinulifer Negrobov & Tsurikov 1988	<div><p>Diostracus (Lagodechia) spinulifer Negrobov &amp; Tsurikov, 1988, comb. nov.</p><p>Diostracus spinulifer Negrobov &amp; Tsurikov [as Zuricov] in Negrobov et al., 1988: 215.</p><p>Lagodechia spinulifer – Negrobov &amp; Tsurikov 1996: 632.</p><p>Type locality</p><p>Lagodekhis-Khevi river, upper stream, Lagodekhi Reserve, Georgia.</p><p>Distribution</p><p>Georgia.</p></div>	https://treatment.plazi.org/id/0705B36DFFDE1C0DF138A62D01064F43	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDE1C0DF266A18903534DC0.text	0705B36DFFDE1C0DF266A18903534DC0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Ozmena) Ozdikmen 2010	<div><p>Subgenus Ozmena Özdikmen, 2010, stat. nov.</p><p>Ozmena Özdikmen, 2010: 265 (new name for Takagia Negrobov, 1973, not Matsumura, 1942) (as subgenus of Sphyrotarsus Mik, 1874).</p><p>Takagia Negrobov, 1973: 1520 (as subgenus of Sphyrotarsus Mik, 1874) (not Matsumura, 1942). — Negrobov 1978: pl. CLXI (as genus, in error). — Type species: Sphyrotarsus stackelbergi Negrobov, 1965 (original designation).</p><p>Diagnosis</p><p>The main diagnostic character of the subgenus is the elongate antennal postpedicel in both male and female, and the apical stylus (Negrobov 1973). Nevertheless, some Oriental Diostracus species also have an elongate postpedicel and an apical or subapical stylus (e.g., Saigusa 1984; Yang et al. 2011). Unfortunately, there are practically no publications with pictures of female antennae in Diostracus species.</p><p>Type species</p><p>Sphyrotarsus stackelbergi Negrobov, 1965 (by monotypy).</p></div>	https://treatment.plazi.org/id/0705B36DFFDE1C0DF266A18903534DC0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDE1C0AF1F4A20D01BC4AFE.text	0705B36DFFDE1C0AF1F4A20D01BC4AFE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Ozmena) stackelbergi (Negrobov 1965) Grichanov 2013	<div><p>Diostracus (Ozmena) stackelbergi (Negrobov, 1965), comb. nov.</p><p>Sphyrotarsus stackelbergi Negrobov, 1965: 441 .</p><p>Sphyrotarsus (Takagia) stackelbergi – Negrobov 1978: 405.</p><p>Sphyrotarsus (Ozmena) stackelbergi – Özdikmen 2010: 265.</p><p>Type locality</p><p>Gorno-Badakhshan region, Khorog, river Gunt, Shugnan, Tajikistan.</p><p>Distribution</p><p>Tajikistan (Pamir).</p></div>	https://treatment.plazi.org/id/0705B36DFFDE1C0AF1F4A20D01BC4AFE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD91C0AF1FEA6F702724E69.text	0705B36DFFD91C0AF1FEA6F702724E69.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) argyrostomus (Mik 1874) Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) argyrostomus (Mik, 1874), comb. nov.</p><p>Sphyrotarsus argyrostomus Mik, 1874: 337 . — Parent 1938: 298.</p><p>Sphyrotarsus (Sphyrotarsus) argyrostomus – Negrobov 1978: 402.</p><p>Type locality</p><p>Wildbadgastein, Austria.</p><p>Distribution</p><p>Austria, France, Italy, Switzerland.</p></div>	https://treatment.plazi.org/id/0705B36DFFD91C0AF1FEA6F702724E69	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD91C0AF1EFA05302374CB1.text	0705B36DFFD91C0AF1EFA05302374CB1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) caucasicus (Negrobov 1965) Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) caucasicus (Negrobov, 1965), comb. nov.</p><p>Sphyrotarsus caucasicus Negrobov, 1965: 440 .</p><p>Sphyrotarsus (Sphyrotarsus) caucasicus – Negrobov 1978: 403.</p><p>Material</p><p>1♂, Adygea, Maikop distr., Caucasian Nature Reserve, Abago Mt, alpine belt, sweeping on grass at snowfield rivulet, 2100 m, 4 Aug. 2008, Volfov (ZIN).</p><p>Type locality</p><p>Caucasian Reserve, Cherkesskii Ridge, Russia.</p><p>Distribution</p><p>Russia (Adygea, Krasnodar).</p></div>	https://treatment.plazi.org/id/0705B36DFFD91C0AF1EFA05302374CB1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD91C0AF27CA4C70318488D.text	0705B36DFFD91C0AF27CA4C70318488D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphyrotarsus Mik 1874	<div><p>Subgenus Sphyrotarsus Mik, 1874, stat. nov.</p><p>Sphyrotarsus Mik, 1874: 342 . — Grichanov et al. 2011b: 25 (diagnosis).</p><p>Diagnosis</p><p>As presently defined, the subgenus differs from other subgenera in the presence of 6 (vs. 2–4) long bristles on the scutellum in addition to the glabrous antennal scape (Negrobov 1973; Grichanov et al. 2011b). These characters are rather variable in Asian Diostracus species (e.g., Saigusa 1984, 1995; Saigusa et al. 1997; Yang et al. 2011). Parent (1938) also used variable male secondary sexual characters to distinguish Sphyrotarsus from Asphyrotarsus (= Diostracus).</p><p>Type species</p><p>Sphyrotarsus argyrostomus Mik, 1874 (by monotypy).</p></div>	https://treatment.plazi.org/id/0705B36DFFD91C0AF27CA4C70318488D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD81C0BF1FFA424018A4996.text	0705B36DFFD81C0BF1FFA424018A4996.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) hervebazini (Parent 1914) Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) hervebazini (Parent, 1914), comb. nov.</p><p>Sphyrotarsus hervebazini Parent, 1914: 85; 1938: 300.</p><p>Sphyrotarsus (Sphyrotarsus) hervebazini – Negrobov 1978: 403.</p><p>Sphryotarsus (Sphyrotarsus) hervibazini – Negrobov 1991: 42 (error for hervebazini).</p><p>Type locality</p><p>Saint-Pierre-de-Chartreuse, Isère, France.</p><p>Distribution</p><p>France, Switzerland.</p></div>	https://treatment.plazi.org/id/0705B36DFFD81C0BF1FFA424018A4996	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD81C0BF1DEA7FF01724F72.text	0705B36DFFD81C0BF1DEA7FF01724F72.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) hessei (Parent 1914) Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) hessei (Parent, 1914), comb. nov.</p><p>Sphyrotarsus hessei Parent, 1914: 108; 1938: 301.</p><p>Sphyrotarsus (Sphyrotarsus) hessei – Negrobov 1978: 403.</p><p>Type locality</p><p>Arras, France.</p><p>Distribution</p><p>France, Italy.</p></div>	https://treatment.plazi.org/id/0705B36DFFD81C0BF1DEA7FF01724F72	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD81C0BF1E1A15B02314D29.text	0705B36DFFD81C0BF1E1A15B02314D29.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) hygrophilus (Becker 1891) Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) hygrophilus (Becker, 1891), comb. nov.</p><p>Sphyrotarsus hygrophilus Becker, 1891: 286 . — Parent 1938: 303.</p><p>Sphyrotarsus (Sphyrotarsus) hygrophilus – Negrobov 1978: 404.</p><p>Sphyrotarsus (Sphyrotarsus) hydrophilus – Negrobov 1978: 404 (error for hygrophilus).</p><p>Type locality</p><p>Gesäuse bei Admont, Austria.</p><p>Distribution</p><p>Austria, France, Switzerland.</p></div>	https://treatment.plazi.org/id/0705B36DFFD81C0BF1E1A15B02314D29	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD81C0BF1C2A31301304C86.text	0705B36DFFD81C0BF1C2A31301304C86.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) parenti (Hesse 1933) Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) parenti (Hesse, 1933), comb. nov.</p><p>Sphyrotarsus parenti Hesse, 1933: 11 . — Parent 1938: 305.</p><p>Sphyrotarsus (Sphyrotarsus) parenti – Negrobov 1978: 405.</p><p>Type locality</p><p>Col du Lautaret, France.</p><p>Distribution</p><p>France.</p></div>	https://treatment.plazi.org/id/0705B36DFFD81C0BF1C2A31301304C86	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFDB1C04F271A42402974D1A.text	0705B36DFFDB1C04F271A42402974D1A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus (Sphyrotarsus) kustovi Grichanov 2013	<div><p>Diostracus (Sphyrotarsus) kustovi sp. nov.</p><p>(Figs 1 A–E, 2, 3A, B)</p><p>urn:lsid:zoobank.org:act: C06CA79F-16D5-45ED-8309-8BCD4613E37C</p><p>Diagnosis</p><p>Scutellum with 3 pairs of almost equally long bristles; antennal scape bare above; male and female postpedicel about as long as high, with dorsal stylus; male 2 nd and 3 rd abdominal sterna with strong black spines; male 4 th abdominal sternum with bundle of setae; male with modified legs and simple wings.</p><p>Etymology</p><p>This species is named after the Russian dipterologist Dr. Semyon Kustov (Krasnodar).</p><p>Type material</p><p>Holotype</p><p>RUSSIA: ♂, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=41.267498&amp;materialsCitation.latitude=43.435833" title="Search Plazi for locations around (long 41.267498/lat 43.435833)">Karachai-Cherkessia</a>, Arkhyz env., Sofiiskie waterfalls, 43°26’09” N, 41°16’03” E, 2400 m, 03 Aug. 2012, S. Kustov (ZIN).</p><p>Paratype</p><p>RUSSIA: 1♀, same data as for holotype (ZIN).</p><p>Description</p><p>Male</p><p>LENGTH (mm). Body 9.4, wing 7.8, antenna 1.5, hypopygium 2.25.</p><p>HEAD (Figs 1A, B). Bluish-greenish black, pollinose; clypeus shining green, weakly pollinose, 1/3 as wide as head; face about 1/5 as wide as head, almost as long as wide; ocellar bristles strong, vertical and postvertical bristles about 1/2 as long as ocellar bristle; postocular ciliation black, strong, nearly as long as postvertical on upper 1/2, finer and yellowish below; ventral 1/2 of postcranium clothed with many long yellow hairs, some of which as thick as vertical bristle; antenna with bare vase-like scape; pedicel with ring of short setae; postpedicel as long as high, rounded distally, with middorsal simple arista-like stylus; length (mm) of scape to pedicel to postpedicel to stylus (1 st and 2 nd segments), 0.16-0.11-0.2- 0.13-0.85; palpus ovate, 1.6 times as long as wide, 1/3 as long as eye height, slightly dilated at middle; palpus black in ground colour, glittering silvery by pollinosity, bearing short black setae on outer side and along margin; proboscis moderately large for the genus.</p><p>THORAX. Greenish black, with washed pollinosity; mesonotum with pair of blackish longitudinal stripes; acrostichals absent; 5–6 asymmetrical dorsocentrals; 1 humeral with 1-2 short setae in front, 1 posthumeral, 2 notopleurals, 1 sutural, 1 postsutural, 1 supra-alar, 1 postalar; scutellum with 3 pairs of strong scutellars, of which outer pair 2/3 length of median 4 bristles; proepisternum with about 10 yellow setae on its lower portion and with about 6 similar seta on its upper portion; scutellum about 3 times wider than long; postscutellum about 3 times as long as scutellum (similar to that in D. leucostomus).</p><p>LEGS. Rather long, black with slight greenish or bluish tinge on coxae and femora; fore coxa concave on anterior surface towards tip, there clothed with short, fine hairs, also with row of short, black, blunt setae on anterodistal margin; fore femur moderately thick, strongly curved at basal 1/3, with very short, fine hairs; fore tibia slightly thickened, bearing 4 dorsal bristles, 2 posterodorsals at base, 1 long curled posterodorsal bristle at apex, 1/3 as long as tibia, and with double row of short, erect ventral setae; fore basitarsus (Fig. 1C) constricted and almost bare in 1 st quarter, thickened in 2 nd quarter, densely short setose; its thickening bearing 3 long, curled dorsal bristles, half as long as basitarsus, and row of 12 short blunt spinules; 2 nd to 4 th tarsomeres simple, bearing elongate setae dorsally; 4 th tarsomere with strong apicoventral seta; 5 th segment flattened dorsoventrally; pulvillus reduced, empodium spicular, claws strong, about half as long as 5 th segment; mid coxa covered with short fine white hairs anteriorly, bearing 3–4 strong apical dirty yellow bristles forming some kind of spine; mid femur (Fig. 1D) slightly curved, distinctly emarginated dorsally along basal half or more, with rather long yellow hairs and setae on anterior, dorsal and ventral surfaces of its basal 1/2, the vestiture slightly darker on dorsal surface; the longest setae twice as long as femur diameter; apical 1/2 of mid femur almost bare and bearing 2–3 anteroventral and 2–3 posteroventral short bristles; mid tibia straight, subapically thickened, short setose, with several anterodorsal and posterodorsal bristles and subapical ventral fringe of strong black bristles longer than tibia thickness; mid tarsus slender, simple and short setose, with reduced pulvillus and empodium; hind coxa bearing sparse short, yellow hairs outside; hind femur long and simple, only slightly curved, with about 6 fine anteroventral black setae in distal 1/2, not longer than femur diameter, with long, fine, subapical anterior bristle; hind tibia slender, bearing several longish bristles on anterodorsal and posterodorsal surfaces and shorter ones on anteroventral and posteroventral surfaces, with about 5 long blackish-brown apicoventral bristles, of which longest bristle reaching middle of basitarsus; hind basitarsus (Fig. 1E) slightly swollen at base, with 4 short dorsal setae, with about 10 long blackish and brownish fine bristles at base ventrally and anteriorly, longest seta more than half as long as basitarsus; next tarsomeres slender and simple; pulvillus and empodium reduced. Fore podomere length (from femur to tarsomere 5, mm): 1.77-1.96-1.37-0.40- 0.27-0.18-0.29 (0.45 with claws); mid leg: 2.86-2.95-1.65-0.54-0.33-0.23-0.33 (0.49 with claws); hind leg: 3.00-3.52-1.38-0.72-0.43-0.25-0.29 (0.40 with claws).</p><p>WING. S imple, almost hyaline, with simple veins; Sc developed; R 2+3 and R 4+5 weakly convex anteriorly; R 4+5 and M 1+2 almost straight and parallel behind level of dm-cu; M 1+2 weakly sinuate; ratio of part of costa between R 2+3 and R 4+5 to that between R 4+5 and M 1+2 = 73/57; ratio of cross-vein dm-cu to distal part of CuA 1 = 84/47; dm-cu perpendicular to both longitudinal veins; calypter blackish, with pale cilia; halter orange yellow.</p><p>ABDOMEN. Black, with washed pollinosity, with short black setae; 1 st tergum with long brownish setae and ciliated with long black bristles on posterior margin; 1 st sternum projected, with shallow transverse furrow anteriorly; 2 nd sternum (Fig. 2) with medial bulb at anterior 1/3, bearing 2 adjacent black spines formed of long glued setae and directed anteriorly; 3 rd sternum (Fig. 2) with twice as large bulb bearing 2 diverging black spines formed of long glued setae and directed anteriorly; 4 th sternum (Fig. 3A) with 2 median bunches of erect brownish setae on low convection, with posterior margin somewhat projecting and covered with short hairs; hypopygium (Fig. 3B) black, moderately large, with posterodorsal portion moderately produced and rounded; hypandrium subtriangular, narrow distally and bifurcated at apex; phallus simple; epandrial lobe short and narrow; surstylus brown, almost semicircular, with short hairs dorsally; cercus distinctly longer than epandrium, slightly swollen at base, band-like, simple, densely ciliated with long yellow setae.</p><p>Female</p><p>LENGTH (mm). Body 7.0, wing 8.0, antenna 1.4.</p><p>Similar to male except lacking male secondary sexual characters, otherwise as follows: 6 dorsocentrals of irregular length in left row and 8 dorsocentrals in right row; palpus not glittering silvery; legs and abdominal sterna simple; 6 th and 5 th terga and genital plates densely covered with fine long setae; no acanthophorites.</p><p>Remarks</p><p>Having bulbs on 2nd and 3rd sterna and bearing strong ventral spines or bunches on abdomen, the new species distinctly differs from other species of the subgenus Sphyrotarsus (see key below). D. (L.) spinulifer males also have a setose venter, but not bearing bulbs and thick spines. Some Chinese and Nepalese species of Diostracus were also described with male sterna ornamented with bunches of setae, spines or projections (e.g., Saigusa 1984; Yang et al. 2011), but strongly differing in many other characters.</p><p>Ecology</p><p>Both types of D. (S.) kustovi were collected together on stones at a stream (S. Kustov, pers. comm.) in high mountains at 2400 m above sea level.</p></div>	https://treatment.plazi.org/id/0705B36DFFDB1C04F271A42402974D1A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
0705B36DFFD71C05F1FCA36305534FA1.text	0705B36DFFD71C05F1FCA36305534FA1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diostracus Loew 1861	<div><p>Key to West Palaearctic species of the genus Diostracus (males)</p><p>Note: Partially based on previous keys to species of the former genus Sphyrotarsus (Parent 1938; Negrobov 1978).</p><p>1. Scutellum with 1–2 pairs of long bristles and with some short lateral setae or hairs............2</p><p>– Scutellum with 3 pairs of almost equally long bristles (subgenus Sphyrotarsus).....................4</p><p>2. Scape with hairs above; 4.5–5.1 mm ............................. D. (Diostracus) leucostomus (Loew, 1861)</p><p>– Scape bare above..............................................................................................................................3</p><p>3. Male and female postpedicel elongate-ovate, 1.5–2 times longer than high, with apical stylus; male abdominal sternites without strong spines; body 5 mm long ................................................ ..................................................................................... D. (Takagia) stackelbergi (Negrobov, 1965)</p><p>– Postpedicel about as long as high, with dorsal stylus; male 2 nd to 4 th abdominal sternites with strong black spines; body 5–6.5 mm long .............. D. (Lagodechia) spinulifer Negrobov &amp; Zurikov, 1988</p><p>4. Male 2 nd and 3 rd abdominal sternites with strong black spines; body 7.0 mm (female) to 9.4 mm (male) long ....................................................................................... D. (S.) kustovi sp. nov.</p><p>– Male abdominal sternites without strong spines............................................................................5</p><p>5. Male cercus shorter than epandrium; body 6 mm long ....... D. (S.) caucasicus (Negrobov, 1965)</p><p>– Male cercus longer than epandrium................................................................................................6</p><p>6. All tarsi with empodium scaly in male, as long as claws; mid basitarsus thin, longer than rest of tarsomeres combined; body 6.5 mm long ............................ D. (S.) hygrophilus (Becker, 1891)</p><p>– Tarsi with reduced empodium; mid basitarsus shorter than rest of tarsomeres combined.......7</p><p>7. Male cercus bifurcated between base and middle; mid basitarsus thickened at middle and at apex................................................................................................................................................8</p><p>– Male cercus bifurcated at apex only; mid basitarsus simple or thickened at base..................9</p><p>8. Outer arm of cercus long and narrow; body 5.2–6 mm long ..... D. (S.) argyrostomus (Mik, 1874)</p><p>– Outer arm of cercus short, broad, subtriangular; body 7 mm long ...... D. (S.) parenti (Hesse, 1933)</p><p>9. Palpus bare; proboscis as long as head; body 5.2 long ..................... D. (S.) hessei (Parent, 1914)</p><p>– Palpus covered with black hairs; proboscis half as long as head; body 6–6.5 mm long ............. .................................................................................................... D. (S.) hervebazini (Parent, 1914)</p></div>	https://treatment.plazi.org/id/0705B36DFFD71C05F1FCA36305534FA1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Grichanov, Igor Ya.	Grichanov, Igor Ya. (2013): West Palaearctic species of the genus Diostracus Loew, 1861 (Diptera: Dolichopodidae). European Journal of Taxonomy 61: 1-14, DOI: 10.5852/ejt.2013.61
