Genera and Species of Coleoptera. 345 



(i. e. when the antennae are projected forward) and apical half of the 

 latter; prothorax scarcely as long as broad, with three or four short 

 irregular transverse grooves, and strongly spined at the side ; scutellum 

 triangular, rounded at the sides ; elytra not broader than the prothorax 

 (including the spines), slightly roiuid at the side, a large fulvescent 

 patch at the apex, the crest at the base with a row of closely set black 

 granules; legs with a pale pubescence, femora dark brown, tibiae 

 reddish brown ; tarsi covered with a short pale-yellowish pile ; body 

 beneath dark pitchy-brown, almost naked, with fidvous spots on the 

 metasternum, and a double row on the abdominal segments. Length 

 7 lines. 



The three species of Imantocera known to me have a strong 

 general resemblance, but, I think, may be easily distinguished by the 

 following characters, which I have tabled together : — 



Prothorax short, rather broader than long ; basal joint of antennae naked, 



or nearly so, rugosely punctate. 

 Last seven joints of antennae annulated with black and grey. 



I. penicillata, Hope. 

 Last seven joints of anteimje entirely pale fidvous, 



I. arenosa, Pasc. 



Prothorax very decidedly longer than broad; basal joint of antennae 



pubescent. /. plumosa, 01. 



M. J. Thomson's '^ Imantocera plumosa, Hope? {penicillata, 

 White?)," may be, from the " elytra paulum abbreviata," I. penicil- 

 lata, Hope, only that the body beneath is not pilose. 



A genus of the Baron Dejean's alKed to Gnoma, Fab., but I believe 

 not yet described, is Psectrocera, the type of which, under the name 

 of Gnoma? pi umig era, has been figured by Professor Westwood in 

 his ' Oriental Entomology ' (pi. 5. fig. 3). It has the foUowing 

 characters : — 



PsECTROCEEA [Lamiidas]. 



Head not broader than the prothorax, elongate behind the eyes. Antennae 

 longer than the body, the basal joint pyrifonn, the third, fourth, and 

 fifth elongate, each bearing a tuft of hairs at the apex. Eyes widely 

 emarginate. Prothorax naiTowly elongate, the sides subparallel, im- 

 armed. Elytra short, depressed, slightly crested at the base, the crest 

 granuliferous, the apex rounded, entire. Anterior legs longer than the 

 others; tibiae of the intermediate pair toothed externally; pro- and 

 mesostema simple. 



There is a second species in Mr. Bowring's collection. 



