Vomerina Winterton, 2007

Winterton, Shaun L. & Ferguson, David J., 2012, New species of Vomerina Winterton (Diptera, Therevidae, Agapophytinae) from Australia, ZooKeys 218, pp. 65-75 : 66-67

Vomerina Winterton, 2007

Type species.

Vomerina humbug Winterton, 2007: 22.

Diagnosis.

Body length 6.5-8.0 mm. Body glossy black with matte white (or silver) lateral stripe of dense pubescence on pleuron, usually extending to anterior segments of abdomen; male frons wider than ocellar tubercle at narrowest point; parafacial setae absent; male with single row of postocular setae; lower frons and face slightly to greatly protruding anteriorly; antenna length shorter than or equal to head length; scape cylindrical or bulbous; flagellum conical, style terminal; sternum with medial furrow lacking setal pile; posterior surface of mid coxa lacking setal pile; wing cell m3 closed; elongate velutum patches present on fore and hind femora; femora without macrosetae; male genitalia without medial atrium, inner gonocoxal process absent or greatly reduced; ventral lobe large, plowshare-shaped, projecting posteromedially with dense medial covering of velutum; dorsal apodeme of parameral sheath well sclerotized; ejaculatory apodeme and lateral ejaculatory apodeme short; gonocoxal apodeme much shorter than gonocoxite length; female with three spermathecae; spermathecal ducts joined to common spermathecal sac duct; acanthophorite spines A1 and A2 present, well developed.

Comments.

Winterton (2007) erected Vomerina based on the male of Vomerina humbug . The stripe of pubescence on the lower portion of the pleuron is distinctively matte white (almost glaucous gray) in Vomerina humbug and Vomerina comapenis sp. n., where it continues onto the posterior surface of the head and onto the anterior segments of the abdomen. In Vomerina micora sp. n., the stripe of dense pubescence is present only on the thorax and is silver. This type of pleural stripe is also found in many species of Bonjeania (e.g. Bonjeania zwicki Winterton, 2007) and numerous species of Parapsilocephala Kröber, 1912 and Acraspisa Kröber, 1912. There is a distinct similarity in body shape between Vomerina and certain Bonjeania species such as Bonjeania webbi Winterton 2007 and Bonjeania bapsis Winterton, 2007. All have a conical head and similar body shape, but most Bonjeania species lack the distinct pleural stripe of pubescence, have a medial atrium and small ventral lobe on the male gonocoxites, while females have only a single spermatheca.

Included species.

Vomerina comapenis sp. n., Vomerina humbug Winterton, 2007, Vomerina micora sp. n.

Key to Vomerina species