Microphorella cornuta, Brooks & Cumming, 2025
|
publication ID |
https://doi.org/10.11646/zootaxa.5661.4.1 |
|
publication LSID |
lsid:zoobank.org:pub:F9498ECE-DED3-46F1-A7D3-1E726D1D11A0 |
|
DOI |
https://doi.org/10.5281/zenodo.16605982 |
|
persistent identifier |
https://treatment.plazi.org/id/039A87AB-FFF6-FFF2-FF42-FDC82541F385 |
|
treatment provided by |
Plazi |
|
scientific name |
Microphorella cornuta |
| status |
sp. nov. |
Microphorella cornuta sp. nov.
urn:lsid:zoobank.org:act:22EA5D5B-EF93-47F2-A373-E6DFED45CEEC
( Figs 76, 77 View FIGURES 71–77 , 79, 80 View FIGURES 78–80 , 103 View FIGURES 102–103 )
Type material. HOLOTYPE, ♂ labelled: “U.S.A.: CALIFORNIA:| SanMateoCounty, Por-| tola Valley, Alpine | Road , CorteMaderaCr|eek 24-VI-1984 230m |Paul H.Arnaud, Jr.”; “[upper margin with row of asterisks]| Flight trap in| shaded creek bed,| 1315–1615 hours DST | [lower margin with row of asterisks]”; “ HOLOTYPE | Microphorella | cornuta | Brooks & Cumming” [red label] ( USNM) . PARATYPES: USA: California: Contra Costa County: Briones Reg. Park [37°57'N 122°08'W], Toyon Canyon, 25.v.1979, D.D. Wilder (5♂, 9♀, CAS) GoogleMaps ; same data except, 26.v.1979 (2♀, CAS) GoogleMaps . Marin County: Tocaloma [38°03'01"N 122°45'34"W], 13.v.1962, L. R. O’Brien (1♂, CMNH) GoogleMaps . Napa County: Oakville [38°26'N 122°24'W], 180 ft, 25.iv.1971, P.H. Arnaud, Jr (1♂, USNM) GoogleMaps . San Mateo County: Corte de Madera Cr. nr Portola [37°23'N 122°19'W], 3.vi.1954, P.H. Arnaud (1♀, USNM) GoogleMaps ; same data except, 31.v.1958 (1♀, USNM) GoogleMaps ; Corte de Madera Ck , 19.vi.1965, J.D. Birchim (1♀, CAS) ; Corte de Madera Crk, Alpine Rd , SE of Portola, 19.v.1968 (1♀, USNM) ; Portola Valley, Alpine Road, Corte de Madera Crk , 230 m, 12.vi.1965, P.H. Arnaud, Jr (2♂, 1♀, USNM) ; same data except, 26.v.1968 (1♂, USNM) ; same data except, 12.vi.1983 (3♀, USNM) ; same data except, 13.vi.1971, P.H. Arnaud, Jr & M.M. Arnaud (1♂, 10♀, USNM) ; same data except, 3.vi.1983, flight trap over creek, sun/shaded, 1310–1450 hours, air temperature 76 F, water 62.5 F, P.H. Arnaud, Jr (2♂, 3♀, USNM) ; same data as holotype (3♂, 4♀, USNM) ; same data except, CNC1155802 View Materials (1♂, USNM) ; same data except, flying low over water of creek, 1430–1500 hours DST, P.H. Arnaud, Jr (1♂, 1♀, USNM) ; same data except, 30.vi.1984, flight trap, creek bed, 1300–1730 hours, P.H. Arnaud, Jr (16♂, 20♀, USNM) .
Diagnosis. In addition to the characters listed above for the M. acuminata lineage, males of this species can be distinguished from other members of the M. acroptera species group by a combination of hypopygial features ( Figs 79, 80 View FIGURES 78–80 ), including the short, thick, horn-like process of the phallus arising near mid-length, the long, narrow apical projection of the left postgonite, the emarginate tip of ventral epandrial process and the protruding, emarginate lower margin of the right postgonite.
Description. Male ( Figs 76, 77 View FIGURES 71–77 , 79, 80 View FIGURES 78–80 ): Wing length 1.6–1.7 mm. Similar to M. acuminata sp. nov. except as follows: Thorax: Dull and more intensely bronze pruinose, with distinct metallic blue tinge. Legs: Dark brown with dark brown setae. Wing: As in description of M. acroptera . Abdomen ( Figs 76, 77 View FIGURES 71–77 ): Sternite 5 with posteromedial projection subtriangular. Hypopygium ( Fig. 76, 77 View FIGURES 71–77 , 79, 80 View FIGURES 78–80 ): Left epandrial lamella with ventral epandrial process uniformly wide, apex emarginate. Dorsal lobe of left surstylus elongate, straight and narrow with expanded apex. Ventral lobe of right surstylus ( Fig. 80 View FIGURES 78–80 ) bifurcate, with short outer lobe and longer medial lobe, both bearing a few setae. Left postgonite lobe with long, narrow apical projection ( Fig. 79 View FIGURES 78–80 ). Right postgonite with posterior margin of protruding basal process concave, apical portion with unevenly bifurcate apex ( Fig. 80 View FIGURES 78–80 ). Phallus robust with short, thick, horn-like process arising near mid-length that ends well before phallic tip ( Fig. 79 View FIGURES 78–80 ).
Female. Similar to male except as follows: Legs: Hindleg: Trochanter without tubercle bearing apical spine-like seta; femur without distinct anteroventral row of setae. Abdomen: As in description of M. acroptera .
Distribution and seasonal occurrence. This new species is known from the San Francisco Bay Area of central California ( Fig. 103 View FIGURES 102–103 ). Specimens were collected from April to June.
Etymology. This species is named in reference to the diagnostic horn-like process of the phallus ( Fig. 79 View FIGURES 78–80 ).
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.
|
Kingdom |
|
|
Phylum |
|
|
Class |
|
|
Order |
|
|
Family |
|
|
Genus |