Asymphyloptera chiricahua Sinclair, 2015, sp. nov.
Creators: name: Sinclair, Bradley J.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Empididae
Asymphyloptera
Asymphyloptera chiricahua

description: Asymphyloptera chiricahua sp. nov.
(Figs 2, 10–12)
Asymphyloptera sp. 2: Sinclair, 1995: 686.
Type material. HOLOTYPE, ♂ labelled: “ USA:A[ri]Z[ona]:Cochise Co./ Chiricahua M[oun]t[ai]ns./ 1– 2.VI.1991 6500' [1980 m]/ East Turkey C[ree]k./ B.J. Sinclair BS9102”; “ HOLOTYPE / Asymphyloptera / chiricahua / Sinclair [red label]” (CNC). PARATYPES: USA. Arizona: Same data as holotype (5 ♂, 6 ♀, CNC, USNM).
Additional material examined. USA. Arizona: Cochise Co., 12.5 km S Sierra Vista Ramsey Cyn, 10– 17.xii.1986, MT, oak/pine/juniper, B.V. Brown (1 ♀, CNC).
Recognition. This species may be distinguished by dark pleura and legs; narrow, elongate surstylus with rounded apex; apex of phallus setose and arched anteriorly.
Description. Male. Postpedicel globular with long, slender apical extension, arising subapically (Fig. 10). Ocellar setae stout, similar in length to postpedicel extension. Labrum slightly shorter than clypeus; palpus brown, subequal to labrum, tapered to slender apex.
Pleura dark brown with thin bluish pruinescence. Chaetotaxy very stout; 1 pprn short, very slender; 2 npl, lower slender and shorter; 4 dc, anterior dc offset; 2 apical sctl, 1.25X longer than prescutellar dc, lacking lateral sctl. Legs dark brown; fore and mid femora with antero- and posteroventral rows of pale, slender setae, subequal in length to width of femur; fore tibia with biserial row of erect setae. Wing length 1.8–2.1 mm (Fig. 2); crossvein h distinct; base of wing with slender setulae along posterior margin. Halter light brown.
Male terminalia (Fig. 11): Cercus with short anterior lobe and long, slender posterior lobe. Hypandrium prolonged as broad, paired postgonites; apical margin of postgonite extended anteriorly, narrow, hook-like. Epandrium narrow, with short setae on apical half. Surstylus long, slender, slightly arched lobe; apex rounded, extended beyond phallus. Phallus slightly arched anteriorly; apex rounded with microsetae; ejaculatory apodeme narrow, not expanded.
Female. Similar to male except as follows: lacking long ventral setae on fore and mid femora and fore tibia. Sternite 8 extended beneath cercus; posterior margin of sternite 8 invaginated, forming wide plate with lateral sclerite extending to posteroventral margin of tergite 8 (Fig. 12). Spermatheca elongate, slender.
Etymology. Named after the type locality, the Chiricahua Mountains of southeastern Arizona.
Distribution. Known only from the type locality in southeastern Arizona (Figs 5, 17), a small stream shaded by oaks, juniper and pine. This was the first known Nearctic record of the genus (Sinclair 1995), collected during the 1991 field meeting of the North American Dipterists Society.
description: Published as part of Sinclair, Bradley J., 2015, New World species of Asymphyloptera Collin (Diptera: Empididae: Clinocerinae), pp. 553-564 in Zootaxa 4048 (4) on pages 556-557, DOI: 10.11646/zootaxa.4048.4.6, http://zenodo.org/record/237775