Umbothynnus katherinensis, Brown, Graham, 2008

Brown, Graham, 2008, Umbothynnus, a newly recognised genus for the Rhagigaster alexius Guérin group of species (Hymenoptera: Tiphiidae: Thynninae: Rhagigasterini) from northern Australia, Zootaxa 1933, pp. 43-58 : 52-53

Umbothynnus katherinensis , New Species

(Figs 3, 4, 8, 27–29)

Diagnosis. Male. Metasomal segments with transverse band of white setae; wings weakly infuscate. T7 with truncated V-shaped carina, not distinctly angulate posterolaterally. The male is similar to U. infuscatus which has T7 subapically transversely carinate.

Head. Weakly emarginate posteriorly, not strongly narrowed behind eyes; clypeus truncate, convex, sagittally carinate becoming subtuberculate apically, depressed and polished between carina and apical margin, closely punctate laterally and basally, impunctate apically; antennal prominence with a strong, broad Ushaped carina, weakly emarginate medially, produced below carina to antennal insertions; frons not transversely carinate, rugose-punctate, obscurely sulcate to mid ocellus, not depressed; vertex closely punctate, impunctate posterolaterad to hind ocelli; gena closely punctate.

Mesosoma . Pronotum narrower than head, rugose-punctate, anterior margin straight, weakly raised, not carinate, not produced laterally; mesoscutum rugose-punctate; tegulae closely punctate basally; mesoscutellum rugose-punctate, convex, subtriangular, rounded posteriorly; metanotum closely punctate, below level of mesoscutellum; propodeum oblique posteriorly, not transversely carinate, rugose-punctate anteriorly, transversely rugose-punctate posteriorly; fore coxae closely and finely punctate; mesopleura rugose-punctate.

Metasoma. Cylindrical: T1–6 closely punctate, T2–5 sparsely punctate posteriorly; S1 rugose-punctate, S2–7 closely punctate; gradulus curved and scrobiculate on T2, straight and scrobiculate on T3–5, straight and punctate on T6, weakly curved and scrobiculate on S3–5, curved and punctate on S6, absent on S7; T1 oblique anteriorly, not tuberculate; S1 broadly raised, anterior V-shaped carina weakly produced; S2 not tuberculate; epipygium more or less truncate posteriorly; hypopygium with angulate basal angles; cuspis short; paracuspis long.

Length. Body 10 mm; fore wing 7 mm; hind wing 5 mm.

Female. Unknown.

Distribution. Inland Northern Territory near Katherine.

Etymology. The specific name is derived from the name of the type locality.

Material examined. Northern Territory: holotype. ɗ Katherine, 17.iv.1962, I.F.B. Common ( ANIC).