Hessemydas seyrigi (Séguy) Seguy, 2005

Kondratieff, B. C., Carr, Ryan J. & Irwin, Michael E., 2005, Two new genera and four new species of Mydidae (Diptera) from Madagascar, Zootaxa 978, pp. 1-14 : 3

Hessemydas seyrigi (Séguy) , n. comb.

Leptomydas seyrigi Séguy 1960: 154 . Type locality: Madagascar, Behara. Afroleptomydas seyrigi, Bowden 1980: 330 .

Diagnosis: Séguy (1960) described H. seyrigi from a single male, and from his description, this species can be distinguished from the following two new species by the shiny black abdomen with terga 1, 3, 4, and 5 with reddish brown posterior margins. Repeated attempts to examine the holotype of H. seyrigi at the Museum National d’Histoire Naturelle, Paris were unsuccessful. A translation of the original description is given below:

Male. Head with long, black pilosity, mixed with some gray hairs on occiput and oral opening. Sides of the face are covered with thick yellow gray pollinosity. Proboscis and palps black. Antennae two times longer than the head in lateral view, the third segment thickened, spindle shaped and subequal to segment two. Mesonotum with a broad middle band of grayish yellow pollinosity, wider and white in color in the prescutellar region; plural margin grayish white, with long silver hairs. Pleuron and coxae shiny brownish black, with sparse white pilosity. Fore and middle legs reddish brown, hind legs brown, ventral surface yellow red, spine black. Pulvilli pale, claws reddish brown, tips black; dorsal surface of femur with white hairs. Halter reddish brown, tips tinged with brown or gray.

Abdomen shiny black, anterior segments with long white hairs, intermixed posteriorly with shorter dark hairs, terga 1, 3, 4, and 5 with reddish brown posterior margins; bulla reddish brown. Terminalia black with apical reddish brown hairs.