I'richoj'lery.r.] clavicornia. 115 



af. Elyti'a shorter, subquadrate, broadest 



bebiud middle T. BREViPENNis, Ei: 



bf. Elytra longer, ovate, broadest about 



middle T. Kirbii, Matlh. 



b. Anterior tarsi of male not dilated. 

 a* Pubescence short. 



af. Elytra not narrowed behind, oblong or 

 subquadrate. 

 aj. Posterior angles of thorax much 



produced T. cantiana, Matth. 



bj. Posterior angles of thorax not pro- 

 duced T. VOLANS, Matlh. 



bf. Elytra narrowed behind, oval. 



a J. Thorax more narrowed from base 

 to apex ; sculpture less pronounced; 



antenna? shorter T. BOViNA, Mots. 



\>X- Thorax scarcely narrowed from base 

 to apex ; sculpture more pronounced ; 



antennse longer T. loxgula, Matth. 



b*. Pubescence longer. 



at- Size larger J elytra moderately long ; 

 thorax with rather large tubercles, sides 

 ver}' finely margined ; pubescence 



fuscous T. SEEICANS, Ileer. 



bf. Size smaller; thorax more plainly 

 margined; elytra very short. 

 aj. Thorax with rather large tubercles; 

 elytra deeply asperate, margined ; 



pubescence fuscous T. beetis, Mots.* 



bj. Thorax with very small tubercles ; 

 elytra feebly asperate, not margined ; 



pubescence whitish T. Cheveoiatii, All. 



2. Antennae yellow, or pitchy-yellow. 



A. Colour entirely castaneous or fusco-castaneous. 



a. Thorax with sides almost straight, strongly 



tuberculate, head broad T. ambiofa, Matth. 



b. Thorax with sides distinctly narrowed in 



frout, feebly tuberculate. 

 a*. Form very convex ; head very broad ; 



eyes small ; elytra not dilated behind in 



female T. Poweei, Mafth. 



b*^'. Form rather depressed ; head narrower ; 



eves large and prominent ; elytra strongly 



dilated behind in female T. dispar, Mal/h. 



B. Head and thorax black or pitchy-black ; 



elytra castaneous. 

 a. Elytra longer than head and thorax . , . T. Gfeeinii, AH. 

 h. Elytra not longer than head and thorax . T. obscjena, Jl'o/l. 



C. Head and thorax black, elytra yellow 



testaceous ; sculpture very faint T. WATEEHoirsir, Matth. 



D. Head and thorax black, elytra brownish-black. 

 a. Head longer ; thorax smaller ; sculpture 



distant T. Montandoxii, All. 



* This very rare species appears occasionally to have the antenna? yellowish ; in my 

 snecimcn, however, they are decidedly pitchy. 



I 2 



