Genera and Species 0/ Colooptcra. 345 



(t. <•. when the nuteiiuju are projected forward; and npicnl half of the 

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

 irreprular transverse prrooves, and stronpfly spincd at tlie side ; scutellum 

 trian<T:uhir, rounded at the sides; elytra not broader than the protliorax 

 (in('liidin;jf the spines), slij^'htly round at the side, a lar},^; fulvesc<'nt 

 pateh at the apex, the crest at the base witli a row of closely set black 

 granules; legs with a pale pubescence, femora dark brown, tibia3 

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

 beneath dark pitchy-brown, almost naked, ^vith fulvous spots on the 

 metost^'rnuni, and a double row on the abdominal segments. Length 

 7 lines. 



The three species of Jmantoccra known to mc 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 ant»'nn;e naked, 



or nearly so, rugosely punctate. 

 Last seven joints of antennae annidated with black and gi'ey. 



I. penicillata, Hope. 

 Last seven joints of antennae entirely pale fulvous. 



I. arenosa, Pasc. 



Prothorax very decidedly longer than broad; basal joint of antennje 



pubescent. /. 2)h(inosa, 01. 



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

 "WTiite?)," 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 allied to Gnoma, Fab., but I believe 

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

 of Gnoma ? plumigera, has been tigiired by Professor Westwood in 

 liis ' Oiiental Entomology ' (pi. 5. fig. 3). It has the following 

 characters : — 



PsECTKOCEEA [LamiidsB]. 



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

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

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

 emarginate. Prothorax narrowly elongate, the sides subparallel, un- 

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

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

 others; tibia3 of the intermediate pair toothed externally; pro- and 

 mesostema simple. 



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



