Allotrichoma lacteum (Mathis, Wayne N. & Zatwarnicki, Tadeusz 2012)
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Mathis2012ZooKeys161, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Mathis2012ZooKeys161">{{Citation See also the citation download page at the journal. |
Ordo: Diptera
Familia: Ephydridae
Genus: Allotrichoma
Name
Allotrichoma lacteum Cresson – Wikispecies link – Pensoft Profile
- Allotrichoma lacteum 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 1.50-2.25 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. Wing with costal vein ratio 0.28-0.32; M vein ratio 0.43-0.47. Abdomen: Male 5th sternal flap in lateral view (Fig. 31) elongate, digitiform, bear several setulae apically and subapically; 5th medial process in lateral view (Fig. 31) elongate, bar-like, bearing 5 apical setulae. Male terminalia (Figs 27-30): Epandrium in posterior view (Fig. 27) like an inverted U with medial flanges, flanges becoming wider ventrally; epandrium in lateral view (Fig. 28) simple, bar-like, height more than twice width; surstylus robust, greatly widened ventrally, posteroventral and anteroventral corners narrowly angulate, ventral margin bearing numerous short setulae; cercus in posterior view (Fig. 27) pointed dorsally, gradually broadened ventrally then abruptly curved laterally and ventrally as a slightly tapered, elongate process that bears numerous, very long setulae apically; cercus in lateral view (Fig. 28) essentially straight, wider dorsally, ventral half slightly tapered, nearly parallel sided, apex abruptly broadened and bearing numerous, very long setulae; aedeagus in ventral view (Fig. 29) elongate, narrowly ovate, slightly tapered apically, in lateral view (Fig. 30) elongate, somewhat lunate; phallapodeme in lateral view (Fig. 30) triangular, keel shorter than length, pointed; gonite in ventral view (Fig. 29) somewhat bar-like, slightly wider basally, apex with short, lateral process, apex of process bearing a setula, with a subapical, distinct, angulate notch and bearing a subapical setula; gonite in lateral view (Fig. 30) wide basally, gently curved apically, tapered to apical point.
Distribution
Distribution. (Fig. 32) Nearctic: United States (Arizona, California, Colorado, Idaho, Montana, Nebraska, Nevada, New Mexico, Texas, Utah, Washington, Wyoming).
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.
