Tsacasiella Lehr, 1996

Londt, Jason G. H., 2002, Afrotropical Asilinae (Asilidae): A provisional key to genera, with a review of the status of Neomochtherus Osten Sacken, 1878, and descriptions of new genera and species, African Invertebrates 43, pp. 11-92 : 55

Tsacasiella Lehr, 1996

Tsacasiella Lehr, 1996: 72 . Type-species: Heligmonevra neavei Ricardo, 1919 , by original designation.

Diagnosis: Head: Antennal style composed of three elements including terminal spine; postpedicel less than twice as long as scape; scape predominantly yellowish.Facial gibbosity weak, occupying less than half distance between lower facial margin and antennal sockets. Face relatively broad (width of head divided by width of face at same level <7). Thorax: Postpronotal lobe equipped with longish slender setae. Mesonotum with dorsocentral macrosetae extending anterior to transverse suture. Scutellum usually with two marginal macrosetae. Trochanters usually yellowish. Metathoracic coxa with one lateral macroseta. Metathoracic femur primarily yellowish. Abdomen: Pruinescence extends uniformly over at least seven segments.Female cerci dorsally finely setose. Hypopygium greatly elongate. Epandrium usually with small ventrodistal process. Gonocoxites and gonostyli narrowly elongate.Aedeagus elongate, more or less straight. Hypandrium medially narrowed.

Note: See also illustrations, key and character matrix (Table 3) for morphological information.