Trachelostenini sensu novo: redescriptions of Trachelostenus Solier, Myrmecodema Gebien and Leaus Matthews & Lawrence, based on adults and larvae, and descriptions of three new species of Leaus (Coleoptera: Tenebrionidae) Author Matthews, Eric G. Author Lawrence, John F. text Zootaxa 2015 4020 2 289 312 journal article 10.11646/zootaxa.4020.2.4 b7fba5bc-8f23-41a5-8cb7-9e368a419017 1175-5326 236475 7FBBE9CA-E98F-4638-8A5E-7E51816B6B79 Key to the species of Leaus 1. Prothorax distinctly narrower than elytral bases, with lateral carinae entire, disc with a pair of low median tumosities ( Figs 27, 30 ). Elytra with basal tumosities and a transverse depression behind them ( Figs 33, 34 ). Total length> 5 mm ............ 2 - Prothorax not or only slightly narrower than elytral bases, with lateral carinae dentate or crenulate ( Figs 28, 29, 31, 32 ), disc evenly convex. Elytral disc only slightly uneven. Total length ≤ 4 mm .......................................... 3 2(1). Prothorax widest at middle ( Fig. 27 ). Basal elytral tumosities not very prominent ( Fig. 33 ). Legs uniformly castaneous. Ovi- positor with gonostyli. Western Tas......................................... L. tasmanicus Matthews & Lawrence - Prothorax widest behind middle ( Fig. 30 ). Basal elytral tumosities prominent ( Fig. 34 ). Legs fuscous with contrasting flavo- castaneous bands. Ovipositor without gonostyli. NE NSW....................................... L. monteithi sp. n . 3(1). Lateral pronotal carinae irregularly dentate, prothorax a little narrower than elytral bases ( Figs 28, 29 ). Qld wet tropics........................................................................................... L. tropicalis sp. n . - Lateral pronotal carinae regularly denticulate or crenulate. Prothorax as wide as elytral bases ( Figs 31, 32 ).............. 4 4(3). Lateral pronotal carinae crenulate ( Fig. 31 ). NE NSW............................................. L. elusus sp. n. - Lateral pronotal carinae evenly denticulate ( Fig. 32 ). SE Qld............................................... L. sp .