120 CLAVICORNIA. [Trichoptery x 



elytra short, narrowed behind, much shorter and rather narrower than 

 head and thorax, rather deeply asperate in remote sinuate rows ; 

 abdomen much exserted ; legs rather short, robust, dark yellow ; under- 

 side black, witl^the mouth and coxae yellow. L. vix 1 mm. 



Unre ; Snodlana (Kent) ; Sherwood Forest (in faggots) ; Scotland. 



This species is allied to T. fascicularis, but differs in the greater con- 

 vexity of its form, the shining surface and more remote sculpture of the 

 thorax, and shorter pitchy antennae ; from T. attenuata it differs in its 

 larger size and much greater convexity, shorter antennae, and sculpture 

 of thorax. 



T. attenuata, Gill. Ovate, much narrowed behind, somewhat 

 depressed, black, sparingly clothed with short pale hairs ; head large, 

 eyes prominent, antennas very long, nigro-piceous ; thorax large, very 

 strongly dilated behind, with rather large tubercles, irregularly arranged 

 in thickly set rows, interspaces glabrous, with a large transverse fovea on 

 each side near posterior angles, which are much produced ; elytra much 

 attenuated towards apex, deeply and transversely asperate ; legs robust, 

 clear yellow; under-side black, with mouth and coxae yellowish. L. 

 | mm. 



In flood refuse, &c., very rare; Snodland and Egham, Kent (Champion) ; Gumley, 

 Leicestershire (Matthews) ; Sherwood Forest, in faggots (Matthews). 



T. volana, Mots. Oblong, rather convex, deep black, thickly 

 clothed with short yellow hairs ; head large, rather prominent ; antennae 

 rather short, pitchy ; thorax short, not broader than elytra, with moderate 

 tubercles, arranged in strongly sinuate rows, interstices reticulate, pos- 

 terior angles scarcely produced ; elytra rather long, not attenuate behind, 

 deeply and irregularly asperate, with the apices almost straight, and the 

 suture raised behind ; abdomen rather much exserted ; legs somewhat 

 long, yellow ; under-side black, with the mouth, apex of metasternum, 

 last segments of abdomen, and coxae, yellow ; posterior coxae strongly 

 dilated, marked with a large black spot in middle. L. | | mm. 



Three specimens were taken about 1876 or 1877 by Mr. Champion at Avicmore, 

 Scotland. 



This species somewhat resembles T. sericans, but is larger and has 

 much shorter pubescence, and differs also in its longer elytra, and the 

 sculpture of the thorax. 



T. ser leans, Heer. Kather short and broad, somewhat depressed, 

 obscure black, not very shining, clothed with rather long fuscous hairs ; 

 head broad, eyes not prominent ; antennae rather stout, black or pitchy- 

 black ; thorax moderate, slightly dilated behind, broadest before base, 

 with rather large tubercles arranged in thick, interrupted rows, posterior 

 angles slightly produced, acute, sides very finely margined ; elytra rather 

 short, subquadratc, deeply and closely asperate, margined ; leg*, obscurely 



