Microphorella serpentina, Brooks & Cumming, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5661.4.1 |
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publication LSID |
lsid:zoobank.org:pub:F9498ECE-DED3-46F1-A7D3-1E726D1D11A0 |
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DOI |
https://doi.org/10.5281/zenodo.16605944 |
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persistent identifier |
https://treatment.plazi.org/id/039A87AB-FFC6-FFC1-FF42-FDC8214BF333 |
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treatment provided by |
Plazi |
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scientific name |
Microphorella serpentina |
| status |
sp. nov. |
Microphorella serpentina sp. nov.
urn:lsid:zoobank.org:act:AB879159-FA6B-4F85-B310-B3B237D0BE47
( Figs 24 View FIGURES 17–24 , 34, 35 View FIGURES 32–35 , 41–46 View FIGURES 41–46 , 104 View FIGURES 104–105 )
Type material. HOLOTYPE, ♂ ( Fig. 34 View FIGURES 32–35 ) from Andreas Canyon, California, labelled: “AndreasCan| 1/IV/45CAL| ALMelander”; “ALMelander| Collection| 1961”; “ HOLOTYPE | Microphorella | serpentina | Brooks & Cumming” [red label] ( USNM) . PARATYPES: USA: California: Riverside County: same data as holotype [33.7694°N 116.5394°W] (1♂, USNM); same data except, CNC1155814 View Materials (1♂, USNM); same data except, 10.iv.1956 (1♂, USNM); same data except, Andreas Canyon, Palm Springs, 4.iv.1955, W. R GoogleMaps . Richards (1♂, CNC); Palm Springs , 1.iv.1945, A.L. Melander (1♀, USNM) .
Other material examined. USA: California: Monterey County: Arroyo Seco, The Lakes [36°14'N 121°28'W], 12.iv.1997, Arnaud flight trap, Collection 01737- A, P.H. Arnaud, Jr & M.M. Arnaud (1♂, USNM); 5 air mi. SW Greenfield, Arroyo Seco River [36°16'55"N 121°18'57"W], 400 ft, 8.v.1975, E. Rogers, flight trap, EMEC 1188817 About EMEC , CNC1155828 View Materials (1♂, EMEC). Riverside County : Agua Caliente Ind. Res., Palm Canyon [33°46'N 116°34'W], 2.iv.1980, P.H. Arnaud, Jr, CNC1155813 View Materials (1♂, USNM); R. R GoogleMaps . Cyn , 4 mi. Elsinore [33°40N 117°14W], 14.iv.1965, C.A. Toschi (1♂, EMEC). San Diego County: Alpine [32°50'4"N 116°46'14"W], 8.iv.1915, M.C. Van Duzee (1♂, CAS) GoogleMaps .
Diagnosis. Males of this species can be distinguished from other members of the M. acroptera species group by the following combination of characters: halter pale yellow ( Fig. 35 View FIGURES 32–35 ); wing vein CuA+CuP unmodified; antenna with stylus longer than bulb-shaped postpedicel; hind basitarsus without basiventral spur-like seta; hypopygium ( Figs 34, 35 View FIGURES 32–35 , 41, 42 View FIGURES 41–46 ) large with bulbous hypandrium; phallus with U-shaped curve protruding posteriorly ( Figs 41, 42, 44, 45 View FIGURES 41–46 ).
Description. Male ( Figs 24 View FIGURES 17–24 , 34, 35 View FIGURES 32–35 , 41–46 View FIGURES 41–46 ): Wing length 2.1–2.3 mm. Similar to M. acroptera except as follows: Head ( Fig. 34 View FIGURES 32–35 ): Face and clypeus slightly narrower, about 1.75× width of anterior ocellus. Thorax: Blackish and shiny with dark metallic green tinge in lateral view, dorsum dark metallic green and shiny; 5–6 dorsocentrals; halter pale yellow ( Figs 34, 35 View FIGURES 32–35 ). Wing: As in description of M. acroptera . Abdomen ( Figs 34, 35 View FIGURES 32–35 ): Blackish brown. Sternite 5 with broad ventral trilobate projection ( Fig. 46 View FIGURES 41–46 ). Hypopygium ( Figs 35 View FIGURES 32–35 , 41–46 View FIGURES 41–46 ): Left epandrial lamella ( Fig. 41 View FIGURES 41–46 ) slightly shorter than hypandrium, relatively large and expanded ventrally; ventral epandrial process with weak ventral bend, with shorter hook-like tip, medial surface with short blunt-tipped projection near mid-length or preapically. Dorsal lobe of left surstylus with thick seta laterally (not developed as blade-like prensiseta set on a tubercle). Right epandrial lamella ( Fig. 42 View FIGURES 41–46 ) with dorsal lobe of right surstylus broad and truncate (with posterior margin shallowly concave), bearing prominent blade-like lateral prensiseta proximal to pair of lateral setae, 1 medial seta opposite lateral pair. Ventral lobe of right surstylus longer and narrower than dorsal surstylar lobe, with several setae on posterior surface. Phallus ( Figs 42, 44, 45 View FIGURES 41–46 ) long and convoluted, basal portion tubular with S-shaped double curve giving rise to weakly inflated middle portion, followed by elongate apical portion with U-shaped curve protruding posteriorly. Hypoproct lobes projecting and more robust ( Fig. 43 View FIGURES 41–46 ). Cercus ( Fig. 43 View FIGURES 41–46 ) relatively small.
Female. Similar to male except as follows: Head: Face and clypeus apparently slightly broader, broader than 2× width of anterior ocellus. Legs: Hindleg: Trochanter without tubercle bearing apical spine-like seta; femur without prominent anteroventral row of setae. Abdomen: Apical segments retractable into segment 5. Tergite 5 with cluster of stout medial setae, other features not observable (abdomen of unique female paratype not dissected).
Distribution and seasonal occurrence. This new species is known from Riverside and San Deigo Counties in southern California and Monterey County in central California ( Fig. 104 View FIGURES 104–105 ). Specimens were collected during April and May.
Etymology. This species is named for the serpentine basal part of the phallus, a characteristic feature of the M. acroptera lineage.
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.
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