200 Mr. WATEKiiorsi: <ni the gonis Calochromus. 



Rather shorter and broader than the jareceding, thorax more 

 transverse, and with the ridge which divides the lateral im})res- 

 sion much more directed forwards ; rostrum almost none, i.e.. 

 the space between the antenna! pit and the base of the mandible 

 is less than half the diameter of the pit, whilst in C. mber this 

 space is quite equal to the diameter of the antenna! pit. Third 

 joint of tlie antennae as long as the first, as long as its greatest 

 widtli, obliquely truncate at the apex, the fourtli joint as long 

 as the two preceding together, a little longer than Ijroad, A-er}' 

 little narrowed at the base, straight at the apex, the fifth to 

 tenth about the same length as the fourth, but gradualh' 

 diminishing in width, scarcely oblique at the apex, their lower 

 anterior angle a little less than a right angle, eleventh joint 

 much narrower, longer, parallel, acuminate at the apex. Thorax 

 ^ l)roader than long, a little narrowed in front, disc convex, 

 Avith a rather fine mesial channel, the sides deeply impressed, 

 the usual oblique ridge very much directed forwards, almost 

 parallel with the lateral margin. Elytra very gradually and 

 very little enlarged posteriorly, each with two narrow little 

 raised costa^, with an indication of a third. 



Hab. Burmah (J. C. Bowring, P^scj.). Brit. Mns. 



C. ccstitiis, n. sp. (PI. H, f. 10). 



Elougatus, postice ])aulo ampliatus, niger ; vix cyauescens ; 

 thorace nigro (vel rubro), tenuissime rubro-sericeo ; elytris 

 rufo-testaceis, dense rufo-sericeis, bicostatis, apice nigro. $ 

 Long. 3-4 lin. 9 Long. 5-6 liu. 



$ Antennae aboiit -I the length of the elytra, moderately 

 1 )road in the middle, tapering to the apex. Rostrum extremely 

 short, the space between the antennal pit and the base of the 

 mandible about ^ the diameter of the antennal pit. Thorax 

 black, dehcately clothed -with very fine silky-red pubescence, 

 only visible in certain lights, discoidal channel rather deep, 

 lateral impressions deep and well defined. Scutellum black. 

 Elytra clothed with bright red pubescence ; each elytron with 

 two not very prominent costa? ; the apex black. Under side 

 and legs black, scarcely tinged with blue. Peni;ltimate segment 

 of abdomen emarginate. 



$ Antenna; rather shorter and broader than in the male. 

 Rostrum a little more prominent, the space between the antennal 

 [lit and the base of the mandible about ^ the diameter of the 

 ])it. Thorax reddish-yellow, with the sides and mesial line 

 black. Each clvtrou with three distinct costa', the ajiex broadh' 

 black. 



