Cis depressus Lawrence, 2019

Lawrence, John F., 2019, The Australian Ciidae (Coleoptera: Tenebrionoidea): supplement, Zootaxa 4555 (4), pp. 451-490 : 467-468

Cis depressus Lawrence sp. nov.

( Figs 15–17 , 59)

Diagnosis. This is a distinctive elongate and flattened species not clearly aligned to any other. Other flattened species of Cis usually have distinctly seriate elytral punctation, unlike those of C. depressus . The frontoclypeal area in the male bears a pair of widely separated broadly triangular plates, somewhat curved and unlike those of other species.

Description. With characters of the genus. Length = 1.20–1.70 (1.35 ± 0.15, n = 11) mm. Body elongate, more or less parallel-sided and flattened. BL/EW 2.31–2.59 (2.44); GD/EW = 0.50–0.77 (0.69). Colour of head and pronotum light reddish-brown, elytra yellowish-brown, undersides yellowish-brown to reddish-brown, legs and antennal funicle yellow, club slightly darker; surfaces slightly shiny. Dorsal vestiture single, consisting of very short, fine hairs, which are barely longer than the punctures from which they arise and not visible under lower power. Most ventral surfaces covered with large, shallow pits with a seta in the center. Frons and vertex slightly convex in both sexes, without vertexal sex patch in male. Longest eye diameter 0.25 times as great as head width. Frontoclypeal ridge in both sexes complete at middle, very weakly raised in female, in male strongly produced and elevated laterally, forming a pair of moderately long, rounded plates separated by 1.5 times a basal width. Antennomere length ratio: 4.22: 2.89: 2.44: 2.22: 1.33: 1.22: 1.00: 2.00: 2.22: 4.22; length/width ratios: 1.46, 1.44, 2.44, 2.00, 1.20, 1.00, 0.69. 0.82, 0.83, 1.58. Apical maxillary palpomere 2.18 times as long as wide, widest near middle, narrowly rounded at apex. Labial palps separated by 0.33 times basal width of one; ratio of palpomere lengths 1.00: 1.33: 1.11, apical palpomere distinctly narrower than preapical one, which is inflated. Male gula 0.53 times as wide as head, densely filled with micropores, except at posterior end, the pores extending anteriorly onto submentum as a broad, apically rounded patch; female gula 0.44 times as wide as head. Pronotum 0.87–0.94 (0.91) times as long as wide, widest near anterior end in both sexes; anterior edge moderately rounded in both sexes; lateral margins barely visible for their entire lengths from above with microcrenulate edges; anterior angles very slightly produced forward and rounded; posterior angles obtuse; posterior edge with very narrow but complete marginal bead; disc evenly convex; punctation coarse and dense, punctures usually separated by half a diameter; interspaces distinctly sculptured and slightly shiny. Prosternum in front of coxae 1.35 times as long as mid length of procoxal cavity, slightly convex; prosternal process 0.37 times as wide as mid length of coxal cavity, subtruncate at apex; procoxal cavities narrowly open; postcoxal process narrowly acute. Elytra 1.4 7–1.68 (1.58) times as long as wide and 1.74–1.97 (1.86) times as long as pronotum; punctation dual and subseriate, with megapunctures distinctly larger than pronotal punctures and forming somewhat irregular rows, the interspaces finely sculptured and shiny. Mesocoxal cavities contiguous, meso- and metaventrtal processes not meeting at midline. Metaventrite slightly convex; discrimen about 0.45 times length of ventrite; shortest distance between meso- and metacoxal cavities about 1.50 times length of abdominal ventrite 1. Outer apical angle of protibia in both sexes rounded or somewhat angulate, without distinct tooth. First abdominal ventrite 1.33 times as long as 2nd; sex patch in male weakly developed, about 0.33 times as long as ventrite, located at middle, longitudinally oval, with partial (posterior) rim. Sides of sternite VIII slightly curved and converging, its apex weakly emarginate, without distinct angles. Pregenital ring relatively broad with subacute apex. Tegmen (Fig. 59) 3.32 times as long as wide, sides gradually diverging to anterior third, then gradually converging to subacute apex; base broadly rounded. Penis 0.96 times as long as tegmen and 7.0 times as long as wide, sides gradually converging from base to subapex, then slightly enlarged, curved and apically rounded. Ovipositor 2.26 times as long as wide, widest at base with sides gradually narrowing apically; paraprocts 1.22 times as long as gonocoxites, longitudinally oriented; gonocoxites 1.50 times as long as their combined widths; proximal lobe slightly longer than wide; distal lobe 2.62 times as long as proximal lobe, gradually narrowed to subtruncate apex; gonostylus 0.24 times as long as gonocoxite and 6 times as long as wide.

Type specimens: Holotype, ♂: “ 16.03S to 16.05S, 145.28E) Cape Tribulation area QLD 21–28 Mar. 1984 A. Calder & T. Weir / berlesate ANIC 942 rainforest / ANIC Image” ( ANIC 25-014992 ).

Paratypes. QLD: Bellenden Ker Range Cabelway Base Stn., 100m, 17.x–9.xi.1981, pyrethrum knockdown, Earhatch / Queensland Museum (1, QMB) ; Cape Tribulation , 19.x.1980, pyrethrum rainforest, G. B. Monteith (6, QMB, ANIC) ; Cape Tribulation , 10m, 15.vii.1982, SBP80, rainforest litter under carrion, S. & J. Peck (1, ANIC) ; Cape Tribulation , 1 km WNW (16.04S, 145.28E), 10m, 5.xii.1995 – 4.i.1996, Malaise trap, L. Umback (2, ANIC) ; Etty Bay, via Innisfail , 24.x.1960, pyrethrum rainforest, G. B. Monteith (3, QMB) ; Palm Island, Site 1 (18.45S, 146.36E), 450m, 20–21.ii.2001, 8332, pyrethrum rainforest, G. B. Monteith (2, QMB) ; Thompson Creek ( Grove ) (16.07S, 145.25E), 80m, 11.ix–25.x.1998, S. Grove 8148 (1, QMB) .

Distribution. Northern QLD.

Biology. Specimens usually collected by pyrethrum knockdown; none recorded from a host fungus.

Etymology. Derived from the Latin depressus , meaning flattened and referring to the distinctly flattened body.

Figures

FIGURES 1–15. habitus: 1–2, Cis apodemus sp. nov.: 1, male, dorsal (1.3 mm); 2, same, lateral; 3–5, Cis bicolorellus sp. nov.: 3, male, unicoloured, dorsal (1.1 mm); 4, same, lateral; 5, female, bicoloured form, dorsal (1.2 mm); 6–7, Cis brachytrichus sp. nov.: 6, male, dorsal (2.1 mm); 7, same, lateral; 8–10, Cis christmasensis sp. nov.: 8, male, dorsal (1.4 mm); 9, female, dorsal (1.5 mm); 10, same, lateral. 11–14, Cis densus sp. nov.: 11, male, dorsal (1.2 mm); 12, same, lateral; 13, female, dorsal (1.1 mm); 14, same, lateral; 15, Cis depressus sp. nov., male, dorsal (1.3 mm).

FIGURES 16–30. habitus:, Cis depressus sp. nov.: 16, female, dorsal; 17, same, lateral; 18–20, Cis howensis sp. nov.: 18, male, dorsal (1.6 mm); 19, female, dorsal (1.6 mm); 20, same, lateral; 21–22, Cis incomptus sp. nov.: 21, male, dorsal (1.0 mm); 22, same, lateral; 23–25, Cis latemarginatus sp. nov.: 23, male, dorsal (1.1 mm); 24, same, lateral; 25, female, dorsal (1.1 mm); 26–28, Cis macilentus sp. nov.: 26, male, dorsal (1.3 mm); 27, female, dorsal (1.2 mm); 28, male, lateral; 29–30, Cis occidentalis sp. nov.: 29, male, dorsal (1.3 mm); 30, female, dorsal (1.3 mm).