114 



CLAVICOBN1A. 



[Trichofteryx 



moss, &c. ; a few occur under bark or in rotten wood ; a species found 

 under these latter conditions is nearly always. a rare one. 



I. Thorax finely margined ; sculpture tuberculate. 

 i. Thorax evidently broader than elytra. 



1. Posterior angles of thorax plainly produced. 



A. Head and thorax black, elytra rufescent . . 



U. Upper surface entirely castaneous; form 



rather narrow 



C . Head and thorax black ; elytra fusco-piceous. 



a. Elytra shorter ; thorax broadest in middle. 



b. Elytra longer. 



a*. Thorax distinctly broadest at base. 



af. Antennas yellow, longer 



bf. Antennae blackish, shorter .... 

 b*. Thorax about as broad at base as in 



middle 



D. Upper surface entirely deep black. 



a. Sides of body with long outstanding setae . 



b. Sides of body without outstanding setae. 

 a*. Antennae and legs pitch-black. 



af. Posterior angles of thorax much pro- 

 duced and curved 



bf. Posterior angles of thorax not much 



produced 



b*. Legs lighter or darker yellow, 

 af. Antennae pitch-black. 



aj. Antennas short 



b j. Antennae long 



bf. Antennae more or less obscurely yel- 

 low. 



nj. Elytra broad, parallel-sided . . . 

 bj. Elytra more or less narrowed 



towards apex. 



*. Thorax very shiny ; elytra dull . 

 **. Thorax not much more shiny 



than elytra. 



f. Elytra longer ; size larger ; 



mouth organs yellow . . 



f-f. Elytra shorter ; size 



smaller ; mouth organs 



pitchy 



2. Posterior angles of thorax not much produced. 



A. Colour griscous-brown : elytra longer than 

 broad, dilated at the middle . 



B. Colour fuscous ; elytra quadrate, parallel- 

 sided 



ii. Thorax scarcely, or not at all, broader than elytra. 

 1. Antennae black or pitchy-black. 



A. Antennae with eighth joint incrassate . . . 

 1J. Antennae with eighth joint not incrassate. 

 a. Anterior tarsi of male dilated. 

 a*. Antennas longer ; elytra oblong, parallel- 

 sided 



b*. Antennas shorter; elytra somewhat 

 dilated behind, or about middle. 



T. SAB*;, Matth. 



T. CHAMPIONIS, Maith. 



T. THOEACICA, Waltl. 



T. ATOMABIA, De Geer. 



T. BBEVICOBNIS, Nots. 

 T. CONVEXIUSCULA, Mots. 

 T. GBANDICOLLIS, Mannh. 



T. FBATEBCr/LA, Matth. 



T. L^ETITIA, Matth. 



T. ANTHEACINA, Mattk. 

 T. ATTENUATA, Gyll. 



T. IATA, Mots. 



T. SEMINITENS, Matth. 

 T. FASCICULABIS, Herbst. 



T. CABBONABIA, M'.ltth. 



T. EDITHIA, Matth. 



T. FUSCULA, Matth. 

 T. PICICOENI3, MannJi. 



T. I.ONGICORNIS, Mannft. 



