Brittonoma mandibulare ( Kirejtshuk, 2011 ) Kirejtshuk & Kovalev, 2022

Kirejtshuk, Alexander G. & Kovalev, Alexey V., 2022, Monograph on the Cillaeinae (Coleoptera: Nitidulidae) from the Australian Region with comments on the taxonomy of the subfamily, Zootaxa 5103 (1), pp. 1-133 : 78

29. Brittonoma mandibulare ( Kirejtshuk, 2011) , comb. nov.

Figs 23 , AH

Brittonema mandibulare Kirejtshuk, 2011: 58 ; Australia, Queensland.

Specimens examined. Australia, QLD: Type series examined by Kirejtshuk (2011); 2 exx ( NHML, ZIN)—“ Mt. Lewis Road , via Julatten, N QLD, 6.XII.1975, Walford Higgins”, “ BMNH ( E), 2005—4, E. Gowing-Scopes Collection. ”

Diagnosis. This species differs from its another Australian congener in the larger and much wider body (11.5– 15.5 mm), head with truncate anterior edge, gentle outline of temples behind eyes, transverse depression between antennal insertions, more projecting and not subquadrangular male labrum, strong sexual dimorphism in the structure of mandibles, much shorter abdominal segments uncovered by elytra, truncate apex of pygidium in both sexes, subacute apex of the male anal sclerite, wider mentum, wider tarsi, strongly dentate tarsal claws, finer punctation on the dorsum (except for elytra) and double rows of punctures in weak striae between longitudinal elevated interstrial spaces on elytra, and also in the structure of the male genitalia.

Figures

FIGURE 23. Brittonoma mandibulare, comb. nov., orig. B–C, E–H: paratype, male from QLD (ANIC: “6 m. up Mt. Lewis Rd., N Q, 27.12.72, A. Walford-Huggins”, “from palm”); A, D, I: female “Mt. Lewis Road, via Julatten…”; A: body, dorsal: B: head, dorsal; C: head and thorax, ventral; D: lateral side of abdominal segments 5 and 6, dorsal; E: male anal sclerite and spiculum gastrale, ventral; F: tegmen, ventral; G: penis trunk, dorsal; H: proximal part of inner sac with armature; I: ovipositor, ventral. Scale bars: a = 2.0 mm to Fig. A; b = 1.0 mm to Figs B–D; с = 0.25 mm to Figs E–I.