]2 1 CLAVICOBNIA. [Trickopteryx* 



Very rare; three specimens have been taken by Mr. Matthews, near Guinley, 

 Leicestershire. 



T. Montandonii, All. Oblong, convex, shining, black with the 

 elytra fuscous black, rather thickly clothed with long white pubescence ; 

 head large, eyes prominent, antennae long, either entirely yellow or 

 slightly fuscous towards apex ; thorax moderate, slightly dilated at base, 

 with moderate tubercles, which are remote and irregularly arranged, 

 interspaces deeply reticulate, posterior margin strongly sinuate, angles a 

 little produced ; scutelluni large ; elytra oblong, almost parallel- sided, 

 not narrowed behind ; legs yellow ; under-side pitchy-black, with mouth 

 and coxae yellow, last segments of abdomen lighter. L. - mm. 



In vegetable refuse, hot-beds, &c., and occasionally in ants' nests ; local; London 

 district, not common. Tonbridge, Belvedere, Loughton ; Hunstanton, Norfolk ; 

 Knowle ; Repton, Burton-on-Trent ; Northumberland district, very rare ; Scotland, 

 Forth district ; it is probably generally distributed. 



The oblong shape, long and slender antennae, and distant tubercles of 

 thorax will serve to distinguish the species. 



T. rivularis, All. Very closely allied to the preceding, but dis- 

 tinguished by its more elongate foim and longer thorax, and also by 

 having the elytra somewhat contracted to apex ; the sculpture also is 

 different, the tubercles on the thorax being rather small, and arranged 

 more closely and regularly, and the posterior margin of the thorax is 

 straighter. L. -|- mm. 



Mr. Matthews says that this species is not uncommon in England ; Birmingham 

 district, &c. ; I feel very doubtful as to whether it can really be separated from T. 

 Muntandonii. 



T. CS-uerinii, All. Oblong, moderately convex, subparallel, head 

 and thorax black, elytra rufo-castaneous, sparingly clothed with short 

 yellow hairs ; head large, prominent j eyes small, prominent ; antennae 

 rather long, yellow ; thorax moderate, very slightly dilated behind, 

 with small distinct tubercles, arranged in sinuate rows, interspaces 

 reticulate, posterior angles slightly but plainly produced, acute ; elytra 

 almost parallel-sided, rather deeply asperate in thickly set, sinuate, 

 rows ; legs rather long and slender, yellow, with coxae and femora pitchy ; 

 under-side black, with mouth parts pitchy. L. f mm. 



Very rare ; in hot-beds, &c. ; West Ham (Billups) ; Gumley ; Hunstanton, Norfolk, 

 at which place I took a single specimen in August, 1879. 



T. obscoena, Woll. Oblong, elongate, strongly convex, with the 

 head and thorax black and the elytra nigro-castaneous ; allied to T. 

 Guerinii, but differs from that species by its longer and narrower form, 

 shorter and more obscurely coloured antennae, which have a less distinct 

 club, shorter and darker elytra, and deeper sculpture. L. | | mm. 



This species has once been taken in fapgots by Mr. Matthews in Sherwood Forest j 

 it was originally found by Mr. Wollaston in the Canary Islands. 



