Allotrichoma simplex (Mathis, Wayne N. & Zatwarnicki, Tadeusz 2012)
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Ordo: Diptera
Familia: Ephydridae
Genus: Allotrichoma
Name
Allotrichoma simplex Loew – Wikispecies link – Pensoft Profile
- Allotrichoma simplex Mathis, Wayne N., 2012, ZooKeys 161: 1-1.
Description
Description. This species is distinguished from congeners by the following combination of characters: Small to moderately small shore flies, body length 1.75-2.15 mm. Head: Medial facial carina above facial prominence shallow; labella broad, fleshy, shorter than mediproboscis; clypeus microtomentose, usually gray. Thorax: Presutural supra-alar seta present. Pleural area lacking stripes. Wing with costal vein ratio 0.25-0.31; M vein ratio 0.42-0.50. Legs blackish brown to black; midtibia bearing numerous, erect setae along dorsal surface. Abdomen: Male 5th sternal flap in lateral view (Fig. 67) broadly developed to it apex, bearing approximately 15 apical setulae; 5th medial process in lateral view (Fig. 67) narrow, digitiform. Male terminalia (Figs 63-66): Epandrium in posterior view (Fig. 63) rounded dorsally, constricted laterally at base of surstyli; epandrium in lateral view (Fig. 64) somewhat rectangular dorsally with anterior and posterior margins parallel sided, ventral portion with an anterior bulge and a narrow, sharp incision at about level or base of surstylus; cerci in posterior view (Fig. 63) approximate dorsally then extended laterally to form a lyre-like structure that curves laterally than ventrally and medially, apex of cercus bearing 4 short setulae; cercus in lateral view (Fig. 64) shallowly sinuous, nearly parallel sided, apex slightly expanded, bluntly rounded; surstylus (ventral extensions of epandrium) in posterior view (Fig. 63) as relatively wide at base third, thereafter ventrally abruptly narrowed, especially along medial margin, to form an elongate process that is slightly spatulate apically, apical portion bearing several short setulae; surstylus in lateral view (Fig. 64) moderately narrow, slightly expanding with apex obliquely pointed and bearing several short setulae; aedeagus in ventral view (Fig. 65) elongate, narrowly ovate, very slightly tapered apically, in lateral view (Fig. 66) elongate, nearly parallel sided, apex bluntly rounded; phallapodeme in lateral view (Fig. 66) triangular, keel abruptly tapered to narrow, digitiform apex; gonite in ventral view (Fig. 65) bar-like, slightly wider basally, apex with short, lateral process, apex bearing setula, in lateral view (Fig. 66) wide basally, gently but distinctly arched, tapered to apical point.
Distribution
Distribution. (Fig. 68) Nearctic: Canada (Ontario), United States (Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maryland, Massachusetts, Michigan, Minnesota, New Jersey, New York, Ohio, Texas, Vermont, Virginia, West Virginia). Palearctic: Austria, Bulgaria, China (Tibet), Czech Republic, France, Hungary, Israel, Italy, Morocco, Poland, Spain, Russia (European Territory), Switzerland, Yugoslavia.
Taxon Treatment
- Mathis, Wayne N.; Zatwarnicki, Tadeusz; 2012: Revision of New World Species of the Shore-fly Subgenus Allotrichoma Becker of the Genus Allotrichoma with Description of the Subgenus Neotrichoma (Diptera, Ephydridae, Hecamedini) ZooKeys, 161: 1-1. doi
This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.
