Speotarus Moore

Baehr, Martin, 2020, A new species of the genus Speotarus Moore from interior Australia, Spixiana 43 (1), pp. 37-41 : 40

Key to the taxa of Speotarus Moore

1. Colour yellow to pale red; head barely darker than pronotum and elytra; eye slightly larger but depressed ( Fig. 2 ); lateral margin of pronotum regularly convex; base relatively wider; elytral striae finely and regularly punctulate ( Fig. 2 ); aedeagus unknown. ............................... ............................. lucifugus princeps Moore, 1964

– Colour darker, rufous to brown; head darker than pronotum and elytra; eye slightly smaller but less depressed ( Figs 1, 3 ); lateral margin of pronotum only in apical half convex, basad oblique and slightly concave; base slightly narrower; elytral striae little or not punctate ( Figs 1, 3 ); aedeagus elongate, internal sac with a narrow, sclerotized rod which is incurved in different ways ( Figs 4, 5). ................................ 2.

2. Head and prothorax slightly wider; elytra slightly shorter and wider, ratio length/width <1.62; eye slightly longer; elytral striae more deeply impressed, irregularly punctulate ( Fig. 1 ); microreticulation faint, surface of elytra glossy; apex of aedeagus acute; rod in internal sac straight, basally more deeply incurved; incurved part wider and shorter; both parameres narrower ( Fig. 4). ........ l. lucifugus Moore, 1964

– Head and prothorax slightly narrower; elytra longer and narrower, ratio length/width>1.58; eye slightly shorter; elytral striae little impressed, impunctate ( Fig. 1 ); microreticulation distinct, surface of elytra rather opaque; apex of aedeagus obtuse; rod in internal sac slightly sinuate, basally less deeply incurved; incurved part narrower and longer; both parameres wider ( Fig. 5). .................... opacipennis , sp. nov.

Figures

Figs 1-3. Habitus. Body lengths in brackets. 1. Speotarus l. lucifugus, Moore (9.0 mm). 2. S. lucifugus princeps Moore (11.0 mm) (by courtesy of C. Lemann, Canberra). 3. S. opacipennis, sp. nov. (9.8 mm).