Microscydmus (Scydmomicrus) queenslandicus Jałoszyński, 2014, sp. n.
Creators: name: Jałoszyński, Paweł
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Microscydmus
Microscydmus queenslandicus

description: Microscydmus (Scydmomicrus) queenslandicus sp. n.
(Figs. 23, 32, 55, 62)
Material studied. Holotype: ♂: two labels: " 11.51S 142.38E QLD / 12km SSE Heathlands / 26 Jan- 1 Mar 1992 / P. Feehney, closed / forest MALAISE#3#4" [white, printed], " MICROSCYDMUS / (SCYDMOMICRUS) / queenslandicus m. / det. P. Jałoszyński, 2013 / HOLOTYPUS " [red, printed] (ANIC). Paratype: ♀, same data except " 1-21 Mar 1992 " (ANIC).
Diagnosis. Male and female: body light brown with slightly darker head; frons broadly subtrapezoidal; punctures on head large and dense, adjacent to each other, contrasting with fine and unremarkable punctation of pronotum and elytra; BL <0.60 mm; pronotum and head equally broad; pronotum with ante-basal transverse groove; EI 1.500. Male: aedeagus with lightly sclerotized and indistinct internal armature visible only in subapical region.
Description. Body of male (Fig. 23) moderately convex, elongate and slender, with moderately long appendages, BL 0.500 mm; cuticle glossy; body light brown with slightly darker head and slightly lighter appendages; vestiture yellowish.
Head subtrapezoidal, broadest at eyes, HL 0.075 mm, HW 0.125 mm; tempora barely marked; vertex weakly convex; frons broadly subtrapezoidal. Eyes strikingly large and strongly projecting laterally from the head silhouette, coarsely faceted. Punctures on head dorsum distinct, large and deep, adjacent to each other; setae short, sparse and suberect. Antennae slender, AnL 0.200 mm; antennomeres I–II elongate, III–X transverse; XI as long as broad.
Pronotum (Fig. 32) in dorsal view oval, broadest between middle and anterior third, PL 0.125 mm, PW 0.125 mm; anterior and lateral margins rounded; posterior margin shallowly bisinuate; base of pronotum with two pairs of small and shallow pits, internal pair connected by transverse impression. Punctures on pronotal disc fine and inconspicuous; setae sparse, thin, short and suberect.
Elytra oval, slightly more convex than pronotum, broadest near middle, EL 0.300 mm, EW 0.200 mm, EI 1.500; basal impressions short; elytral apices separately rounded. Punctures on elytral disc as fine as those on pronotum; setae short, sparse and suberect. Hind wings well developed, about twice as long as elytra.
Legs moderately long and slender, without modifications.
Aedeagus (Fig. 55) small, AeL 0.080 mm; stout, with lightly sclerotized and indistinct internal armature located in its subapical region; each paramere with long apical seta.
Female. Externally indistinguishable from male. BL 0.500 mm; HL 0.080 mm, HW 0.130 mm, AnL 0.200 mm; PL 0.130 mm, PW 0.130 mm; EL 0.300 mm, EW 0.200 mm, EI 1.500.
Distribution (Fig. 62 d). NE Australia (N Queensland).
Etymology. Locotypical, after Queensland.
Remarks. Microscydmus queenslandicus differs from all Australian congeners in having distinctly and densely punctate head dorsally, extremely large eyes and broadly subtrapezoidal frons; this combination of characters allows for unambiguous species identification.
description: Published as part of Jałoszyński, Paweł, 2014, The smallest Cyrtoscydmini of Australia: revision of Microscydmus Saulcy & Croissandeau and Penicillidmus gen. n. (Coleoptera, Staphylinidae, Scydmaeninae), pp. 1-30 in Zootaxa 3774 (1) on page 22, DOI: 10.11646/zootaxa.3774.1.1, http://zenodo.org/record/285693