Tridu)pterijx.'\ clavicobnia. 121 



yellow, under-siilo pitcli^'-black, with mouth, coxre, raotastenaim, and 

 margins of ventral segments of abdomen obscurely yellow. L. |-|^ mm. 



In vegetable refuse, grass lieaps, hot-beds, &c. ; rather local, but very abniulunt in 

 some places ; London district, not coniuion, Lee ; Kingsgate ; Hastings ; Glaiivilles 

 VVootton ; Weymouth; Exeter; Dean Forest; Midland districts, not uncommon, 

 Birmin<rliam districts, Eepton, &c. ; Wicken Fen ; Cheshire; Lincolnshire; Hartle- 

 pool; Northumberland district, rare; Scotland, Solway, Forth, Tay, and Clyde 

 districts. Lvland, near Dublin. 



T. brevis, Mots. In appearance this species very mucli resembles tlie 

 preceding, but differs in its smaller size, shorter and broader form, more 

 jirominent eyes, shorter elytra, and deeper sculpture, and also in the fact 

 that both the thoiax a-nd elytra are distinctly margined. L. |-f mm. 



In hot-beds, &e. ; very rare; Cumley, in vegetable refuse (Matthews); I once 

 took two specimens in my hot-bed at Keptou, one of which has four distinct foveolate 

 depressions on the thorax. 



The antennte of this species appear to vary somewhat in colour. 



T. bovina, Mots. Oval, convex, deep black, dull, clothed with 

 short, pale, silky hairs ; head moderate ; eyes rather small and prominent ; 

 antennae short and stout, black or pitchy-black ; thorax short, dilated 

 behind, with small tubercles arranged in sinuate rows, interspaces feebly 

 reticulate, posterior angles acute, scarcely produced ; scutellum large ; 

 elytra rather short, oval, very clo:-ely asperate in transverse roAvs, with 

 apices contracted and rounded ; abdomen rather much exserted ; legs 

 clear yellow ; femora dusky ; under-side pitchy with mouth and coxte 

 lighter. L. |-| mm. 



In flood refuse, dead leaves, &c., but especially in dry cow-dung ; occasionally 

 taken by evening: sweciiing ; not uncommon and gener^Jly distributed throughout the 

 greater part of England ; it has not, however, been recorded from the extreme north ; 

 Scotland, Forth and Tay districts. 



This species is easily distinguished from T. sericans by its shape and 

 finer sculpture, and especially by its shorter antennee. 



T. brevipennis, Er. 8hort and broad, convex, black, thickly 

 clothed with rather long pale hairs ; head large, rather prominent ; eyes 

 prominent ; antennte long, pitchy, or pitchy-testaceous ; thorax somewhat 

 dilated, broadest before base, with distinct minute tubercles thickly 

 arranged in rows, interspaces reticulate, plainly margined, posterior 

 angles produced, acute ; elytra very short, somewhat dilated behind in 

 male, thickly and deeply asperate in transverse rows, apices broad, strongly 

 rounded ; abdomen rather much exserted, somewhat aciiminate ; legs 

 rather long, pitchy or pitchy-testaccons, with the anterior tibiae, and the 

 first joint of the anterior tarsi, strongly dilated in male ; under-side black 

 Avith the mouth and apex of abdomen a little lighter, all the coxas pitchy. 

 L. f— 1^ mm. 



In moss and refuse in damp places, especially in or near marshes ; local ; Shirley 

 (Sharp) ; Glanviiles Wootton ; Kuowlc, near Birmingham ; Gumlcy, Lciceotershire j 

 bcotlaud, Solway district. 



