68 Mr. Gilbert J. Arrow's Conlribution to the 



fere attingentibus ; elongatus, convexus, pronoto opaco, dense 

 punctato, angusto, lateiibus sinuatis, aiigulis omnibus acute pro- 

 ductis ; elytris sat fortiter et crebre punctatis, lateribus et apicibus 

 opacis, huuieris prominentibus, baud dilatatis; antennaruin clava 

 laxe articulata, articulo ultimo paulo longiori quam latiori : 



(3, abdoniine subtus fortiter excavato et bicarinato. 



Long. 10-11 mm.; lat. max. 5 mm. 



Hab. Assam : Manipur {Doherty). 



The Museum collection contains one specimen of each 

 sex, referred by Mr. Gorham to E. cruciyer, but consider- 

 ably smaller than the type (the specimen figured) of that 

 species, from whicl) it differs also in the narrower prothorax, 

 with more sharply produced front and hind angles. The 

 shoulders of the elytra are a little less prominent than in 

 that species. The club of the antenna in both E. vicinus 

 and E. crucigeris more abruijtly dilated than in E. hardwickei 

 and E. coelestinus, but much less so than in the doherlyi 

 group. The ventral carinae of the male are very sharp 

 and prominent. 



The true male of E. cruciyer is still unknown. 



Eucteanus eucerus, sp. n. 



Saturate coeruleus, elytris nitidis, utroque maculis duabus magnis 

 subrotundatis ornato; parum elongatus, jironoti lateribus leviter 

 bisinuatis, angulis omnibus acutis, vix productis, elytrorum liumeris 

 prominentibus, deinde ad post medium leviter ampliatis, apicibus 

 paulo productis, baud acuminatis, separatim rotxmdatis; anten- 

 narum clava brevi, latissimo, articulo 9° vLx dilatato, duobus ultimis 

 late coimatis. 



Long. 8-9 mm. ; lat. max. 5-5*5 mm. 



Hah. Assam : Manipur {Doherty). 



This is a member of tlie second group — ^of smaller and 

 shorter-bodied forms. The elytra are smooth and shining, 

 with the shoulders rather square (not broadly rounded, 

 as in E. dohertyi Gorh.), the widest part beyond the middle, 

 and the pattern consisting of four large rounded pale 

 yellow patches, exactly as in E. dohertyi and E. cniciger. 

 The antennal club is short, but larger and broader than in 

 any other known species of the genus, the last two joints 

 being very closely fitted together in the form of a triangle 

 with almost uninterrupted sides, the preceding one only 



