Vomerina humbug Winterton, 2007: 22.

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.

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.

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

– Holotype male, AUSTRALIA: New South Wales: Boonanghi State Forest, 24 km W Kempsey, vic.[inity of] ‘The Blowhole’ [-31.0747, 152.5663], 8.x.1993, G. & A. Williams, riparian zone, dry rainforest (AM).

Wing dark infuscate; frons slightly projecting around antennal base; scape cylindrical, shorter than flagellum, not bulbous; black setae on katatergite; white pubescence on pleuron extending onto abdomen; male abdomen black apically; articulated inner gonocoxal process present, greatly reduced.

Body length: 7.0 mm. Head. Frons flat, surface rugose-striated medially, wider than ocellar tubercle at narrowest point, antennal base positioned low on frons; lower frons and face slightly protruding around antennal base; frons glossy black, silver-grey pubescence along eye margin; short setae sparsely distributed on lower frons; narrow medial stripe of silver pubescence around antennal bases on face, parafacial and along margin of eye; ocellar tubercle flat, glossy black; occiput concave, black, overlain with dense grey pubescence; single row of very short, black postocular setae; gena black, overlain with white pubescence admixed with white, elongate setae; palpus and labellum brown-black with sparse, dark setae; antenna black, only slightly shorter than head; short dark setae on scape and pedicel; scape shorter than flagellum length, cylindrical, with grey pubescence; flagellum conical with brownish suffusion. Thorax. Black, scutum and scutellum overlain with grey-black pubescence admixed with relatively short, dark setae; scutum with narrow, faint dorsocentral and medial stripe of pale grey pubescence; scutal macrosetae black; pleuron, sternum and coxae glossy black; distinctive broad stripe of matte white to silver pubescence along pleuron length; elongate pale setae on proepisternum, katepisternum and coxae, black setae on anepisternum and katatergite; legs black with pale setae of various lengths on femora, dark yellow band midway on mid and hind tibiae and basitarsus; wing smoky infuscate; venation dark; haltere brown-black; scutal chaetotaxy (pairs): notopleural, 4; supra alar, 1; post alar, 1; dorsocentral, 1–2; scutellar, 1. Abdomen. Glossy black, uniform scattered pale setae, longer laterally, white-grey pubescence laterally on sternites 1–3. Male genitalia. Gonocoxite with outer gonocoxal processes reduced; articulated inner gonocoxal process greatly reduced; gonostylus broad; ventral lobe large, plowshare-shaped, projecting posteroventrally with velutinous pubescence on ventral surface (Figs 3–4).

The species epithet is derived from the Latin, coma hairy; penis, intromitant organ; referring to the vestiture of the male genitalia.

Vomerina comapenis sp. n. is muchsmaller in body size to Vomerina humbug and can be further distinguished by the frons being only slightly projecting, a non-bulbous antennal scape and darker wings. This species is distinguished from Vomerina micora sp. n. by the lateral velutum stripe extending onto the abdomen, abdomen uniformly black, and the scutum lacking grey pubescent dorsocentral stripes. The female is unknown.

– Holotype female, AUSTRALIA: New South Wales: South Black Range, 8 km E Hoskinstown, Fluoro U.V. light trap [-35.4183, 149.5347], 11.ii.2010, 1180m D. J. Ferguson (ANIC 29 029246)

Wing dark infuscate; scape cylindrical, shorter than flagellum; black setae on katatergite; silver pubescence on pleuron not extending onto abdomen; scutum with two faint dorsocentral stripes bordering a darker medial stripe; female abdominal segments 7–8 orange.

Body length: 6.5 mm. Head. Frons flat, rugose-striated medially, wider than ocellar tubercle at narrowest point, antennal base positioned low on frons; lower frons and face protruding only slightly with curved ridge above antennal base; frons glossy black, short setae sparsely distributed on upper frons, silver-grey pubescence on parafacial, oral cavity and along eye margin; ocellar tubercle flat, black; occiput concave, black, overlain with grey pubescence; few relatively strong short black postocular setae followed by weaker setae in several irregular rows; elongate black setae along lower postocular admixed with white setae along gena; gena black, overlain with silver-grey pubescence; palpus and labellum brown-black with sparse, dark setae; antenna two-thirds length of head; scape and pedicel black with short dark setae; scape about half length of flagellum, cylindrical, with grey pubescence; flagellum with red-brownish suffusion and grey pubescence. Thorax. Glossy black; scutum and scutellum overlain with grey-black pubescence admixed with relatively short, dark setae; scutum with pair of narrow dorsocentral stripes of sparse pale-grey pubescence bordering a darker medial stripe; scutal macrosetae black; pleuron and sternum glossy black; broad stripe of silver pubescence along pleuron from proepisternum to hind coxa; fore and middle coxae dark brown, hind coxa black; posterior surface of hind coxa with silver pubescence; elongate pale setae on proepisternum and coxae, black setae on katatergite; fore and middle femora dark brown, hind femur black; elongate yellowish-grey velutum patches to ventral surface of hind and apical half of fore femora; pale setae of various lengths on all femora; tibiae black to dark brown; mid and hind basitarsi dark yellow basally; wing dark infuscate, venation and stigma dark grey; haltere matte brown; scutal chaetotaxy (pairs): notopleural, 4; supra alar, 1; post alar, 1; dorsocentral, 4; scutellar, 1. Abdomen. Glossy black with short dark setae distributed evenly; erect whitish setae laterally on segments 1 and 2; segments 7 and 8 orange in colour with sparse, erect black setae. Female genitalia. Three spermathecae and a relatively small, simple spermathecal sac.

The species epithet is derived from Latin, mico shine; ora border; reference to the silver-grey pubescence border of the eye.

Vomerina micora sp. n. is more slender in body than Vomerina humbug and Vomerina comapenis sp. n. and can be distinguished by the dorsocentral stripes on the scutum, short, cylindrical scape, and the pleural stripe not extending onto the abdomen. The orange terminal abdominal segments may prove to be a sexually dimorphic character, as is found in many other therevid species. The male is unknown.