Spazigasteroides, Huo, Ke-Ke, 2014

Huo, Ke-Ke, 2014, Spazigasteroides a new genus from China with a black face and scutellum in the Syrphini (Diptera: Syrphidae), Zootaxa 3755 (3), pp. 230-240 : 231

Spazigasteroides gen. nov.

Type species: Spazigasteroides caeruleus sp. nov.

Etymology. The new genus is named by adding – oides posteriorly to its allied genus Spazigaster . The new name Spazigasteroides is considered masculine.

Diagnosis. Face black, whitish pollinose and black (in male) or whitish pilose (in female). Facial tubercle located at lower third of head, abrupt ventrally. Head strongly concave posteriorly and closely appressed to thorax so that the bare postpronota are entirely hidden. Pile on scutum short black, but on lateral margins intermixed with long bristle-like pile, in male with long black pile posteriorly. Scutellum black, with intermixed black and white pilosity, in male pile long and short, with longest about 5 to 6 times as long as shortest. Postmetacoxal bridge incomplete. Metasternum bare. Katepimeron with pilose patches broadly separated posteriorly. Wing with steel blue reflection in sunshine from some views, deep brown on anterior margin; M1 with a short appendix near the wing apex in some individuals. Wing membrane microtrichose, except cells r, bm and cup, anal lobe with bare regions, alula mostly bare except for microtrichose margin. Abdomen petiolate, longer than head and thorax together, flat; with terga 2, 3 and 4 nearly equal in length; tergum 2 slightly constricted backward, the narrowest part on end of tergum 2, abdomen gradually broadens from tergum 3, the widest part on apical end of tergum 4; the narrowest part of abdomen less than half of the widest part. Abdomen black with dark blue reflection, tergum 2 with a pair of long, transparent, whitish yellow lateral maculae; in female tergum 3 basally with a pair of rectangular, transparent lateral maculae. Aedeagus of male two segmented.