. Mr. H. E. Andrewes on Oriental Carabidse. 505 



rounded at apex. Maxillary palpi with penultimate joint 

 minute, very slofider at base, antepenultimate hollowed out on 

 inner t^ide at distal extieniitj, as long as last joint, last-named 

 widely dilated, securitbrtn, narrow at base, dilated inwards to 

 near middle, rounded at apex, outer edge curved (convex 

 outwardly) and halt" as long again as inner one, angles 

 rounded, a little hollowed out at extremity (upper surface of 

 this joint sometimes depressed, shape varying a little as result 

 of drying). Lahrum transverse, almoat rectangular, with 

 front angles widely rounded, a little raised along median line, 

 depressed at sides, a single seta on each side-margin, but a 

 few minute additional seta occasionally visible near margin 

 of lower surface, including a pair close together near apex. 

 LegSy and especially tarsi, more slender than in Macrochilus. 



Other characters as in Macrochilus. 



This new genus is proposed for a species widely spread in 

 India and Indo-China. It is allied to Macrochilus, a genus 

 in which the form of the pal|)i is very variable, and, were 

 there no other differences than those presented in these organs, 

 the new species might very well have been included in it. 

 There are, however, other peenliariiies, and one of a very 

 unusual character. In the Ilelluonini the maxillso are 

 normally sharply hooked at apex (rarely below apex), but 

 here they are straight and without any sign of a hook ; 

 another unusual feature is the glabrous penultimate joint of 

 the labial palpi. 



Colfax stevensi, sp. n. 



Length 11-0-12-0 mm.j width 3-50-3-75 mm. 



Piceous black ; elytra each with a median and ai)ical 

 yellowish spot, front margin of clypcus, a spot on vortex 

 between eyes, side-margins of prothorax, legs, labrum, and 

 jalpi testaceous red, antenna3 brown, pubescence yellow. 



Head (2'0 mu). wide) convex behind, rather flat in fiont, 

 closely punctate, clypeus with only a few punctures in middle, 

 gena) short, joining neck rather abruptly; antennae stout, 

 hardly reachnig middle of body, joint 1 cylindrical = 11, 2 

 and 4 about half as lung as 1, 3 = 5, whence (lie jonits 

 lengthen slightly to apex. 



Prothorax (2'5 mm. wide) slightly convex, half us wide 

 again as long, widest at a third from apex, front angles 

 rounded and fringed with long hairs, sides rounded in 

 front, sinuate behind and lulling on base at nearly a ri<'lit 

 angle, median part of base widely though slightly protluced 



