Cordiluroides albitarsata, Fogaça & Couri & Vieira-Araújo & Carvalho, 2020

Fogaça, João Manuel, Couri, Márcia Souto, Vieira-Araújo, Angelina Pimentel & Carvalho, Claudio José Barros de, 2020, Cordiluroides Albuquerque (Diptera: Muscidae): new species and key to the Neotropical genus, Revista Brasileira de Entomologia (e 20200028) 64 (4), pp. 1-10 : 3-5

Cordiluroides albitarsata sp. nov.

( Figs. 4 and 5 )

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Material. Holotype: Male. PNI [Parque Nacional do Itatiaia] – M1A / DATA: 02. x. 2015 – 03.xi.2015 / BIOTA–FAPERJ / DIPTERA / BRACHYCERA / BRASIL: MG. Itamonte, PNI, Setor Brejo / da Lapa, Brejo da Lapa , PNI– M1A / coord: 22º21’32,40”S, 44º44’14.04”W, / 2142 m a. s. l. ( MNRJ) . Paratypes: 6♂ and 3♀ Same data as holotype (2♂ 1♀ MNRJ, 1♂ DZUP) . Same data as holotype, except for date: vii-viii.2015 (3♂ MNRJ, 1♂ DZUP) . x-xi.2015 (1♀ MNRJ) .

Diagnosis. The presence of white setae (beard) in the gena and postgena in male ( Fig. 4c ) and female, fore tarsus with tarsomeres 2-5 flattened and white in male ( Fig. 4a ) easily distinguish Cordiluroides albitarsata sp. nov. from the other Cordiluroides . Ground color brown with grey pollinosity.Head ( Fig.4a–c and f ): Frons brown with a discrete golden pruinosity in center in male and more homogeneous dark brown in female; fronto-orbital plate, face and gena silver pruinose; gena and postgena in male and only postgena in female with white setae (beard); antennae and arista brown, apex of pedicel lighter in some specimens; palpus dark brown.Thorax ( Fig.4d–e ): Scutum with 5 brown vittae, a little larger in female. Upper and lower calypters white; halter yellow. Wing: Infuscated ( Fig. 4d ). Legs: All coxae yellow with white pollinosity, fore femur yellow, mid and hind femora yellow with apical fifth brown, all tibia yellow, all tarsi dark brown, except fore tarsus in male with tarsomere 1 dark brown, except on tip, tarsomere 2 white, with a brown area at base, tarsomeres 3–5 white ( Fig. 4a ); pulvilli light brown, claws black, ligther at base. Abdomen: With a brown middle stripe and lateral brown clouds in all tergites.

Length. Male: body: 3.90 –3.95 mm; wing: 4.2 mm.

Head. Interocular space about one–third of head-width at the level of anterior ocellus. Four pairs of frontal setae, the two lower ones short and the two superior ones long and backwards directed; inner vertical seta long; ocellar setae very short; antennae inserted a little above middle of eyes; pedicel reaching oral margin; arista short pubescent. Gena narrow. Vibrissa strong and long. Proboscis with developed teeth.

Thorax chaetotaxy. acr s in a row of short cilia; dc s 1+3, all long; ial s 1+1, spal s 1+1; pal s 1; b pprn s 1; npl 2; anepst 4–5; a kepst s 1+1+1. b sctl s longer than the sctl s length. Sternite 1bare.

Legs. Fore femur with a row of long and sparse setae on pd and pv surfaces; fore tibia with one long median p setae, one preapical d and two apicals, one p and one pv. Mid femur with two ad setae on middle third, 3–4 long and sparse v setae, posterior surface with two preapical setae; mid tibia with one long median ad setae, one long median pd, one long preapical d and one apical ad; hind femur with a sparse ad row with about six setae, av surface with four sparse setae, preapical setae on d, ad and pd surfaces; hind tibia with one long median ad seta, one long d on apical-third, one av on apical-third, one preapical ad and one apical v strong.

Wing. All veins bare, except costal.

Abdomen. Elongated. Tergite 1 with three lateral setae on each side, tergites 2–3 with one pair of lateral setae, tergite 4 with two apical setae and one lateral, tergite 5 with a discal and a marginal row of setae. Tergite 6 asymmetric ( Fig. 5a ), sternite 5 “U” Shaped ( Fig. 5b ).

Terminalia. Surstyli shorter than cercal plate and rounded in the apex ( Fig. 5d ). Cercus longer than wide, wider basally than apically, covered with median to long setae ( Fig. 5c ). Hypandrium moderate to long tubular ( Fig. 5e ).

Female. Similar to male in most aspects, except for white beard in the gena and postgena not so dense as in male; abdomen not elongated. Terminalia : Ovipositor long with microtrichia along its whole length, tergites fine, cerci long ( Fig. 5f and 5g ). Three rounded spermathecae ( Fig. 5h ).

Etymology. The specific epithet, albitarsata , refers to the white tarsi in male.

Distribution. BRAZIL, Minas Gerais: Parque Nacional do Itatiaia.

Figures

Figure 4 Cordiluroides albitarsata new species.Holotype.Male.a) Habitus,lateral view; b) Habitus,anterior view;c) Head detail,lateral view; d) Habitus,dorsal view.Paratype. Female. e) Habitus, lateral view; f) Habitus, anterior view. red arrow = a) tarsomeres 2-5 flattened and white; c) white setae (beard). Scale bars 2mm.

Figure 5 Cordiluroides albitarsata new species. Paratype. Male. a) syntergosternite 7+8, dorsal view; b) Sternite 5, dorsal view; c) Cercus, posterior view; d) Terminalia, lateral view; e) Complex phallic, lateral view. Paratype. Female. f) ovipositor, dorsal view; g) ovipositor,ventral view;h) Spermathecae.Scale bars a-g=0.1mm;h= 0,05mm.