616 Mr. J. S. Baly's Descriptions 



with fine adpressed concolorous pubescence, edges of the segments 

 clothed with a row of coarse hairs. 



6. Crioceris ohesa. 

 Late oblonga, convexa, nitido-rufo-fulva ; antennis filiformi- 

 bus, fulvis ; scutello fidvo-piloso ; elytris ampliatis, valde 

 convexis, nitido-nigris, infra basin transversim depressis, 

 tenuiter punctato-striatis, striis disci postici deletis, tibiis 

 tarsisque obscure rufis, unguiculis piceis. 

 Long. 5 lin. 



Hab. Amboyna. Collected by Mr, Wallace. 

 Head deeply constricted behind the eyes ; face elongate-trigo- 

 nate; front impressed with a longitudinal groove; antennae fili- 

 form, somewhat slender, two-thirds the length of the body, pale 

 fulvous, apex of terminal joints fuscous ; eyes angularly notched. 

 Thorax sub-cylindrical, constricted on the sides, surface smooth, 

 impressed with a very few minute punctures, arranged on the 

 disc in a longitudinal row. 



Genus Mastostethus, Lac. 

 1. Mastostethus Philemon. 

 Oblongus, modice convexus, nitidus, flavus ; coxis posticis, 

 femoribus et tibiis supra, tarsis, epipleuris, capite (faciei in- 

 ferioris macula antennisque apice et infra exceptis), tho- 

 racis plaga transversa discoidali, scutello elytrisque nigris, 

 his distincte punctatis, singulisque fasciis duabus subcurvatis, 

 prima obliqua a scutello fere ad medium marginis exterioris 

 extensa, secunda fere transversa utrimque abbreviata, paullo 

 pone medium posita, flavis. 

 Long. 4 — 41 lin. 



Hab. Upper Amazons. Collected by Mr. Bates. 

 Oblong, moderately convex, somewhat flattened above ; head 

 triangular, lower portion of face, with the exception of a trans- 

 verse patch on the epistome, the labrum and apex of jaws, 

 flavous ; epistome transverse, very remotely punctured, bounded 

 above by a deep transverse groove, middle of front impunctate, 

 sides, along the inner margin of the eyes, closely punctured, vertex 

 impressed with subremote punctures ; antennae more than half 

 the length of the body, moderately robust, first four joints entirely 

 black, the rest to the ninth flavous beneath, the last two entirely 

 yellowish-white. Thorax more than twice broader than long at 

 the base, sides slightly rounded and somewhat narrowed from 



