530 REVISION OF THE GENERA COLPOCHILA, ETC. 



wider and less elongate form (long. 8J, lat. 5 lines) and have all 

 the teeth of their front tibiae longer and sharper (the uppermost 

 being, — as in the type of C, deceptor, — much larger in proportion 

 to the others than it is in C hella, in which it seems invariably to 

 be very small). It is probable that the inspection of males of 

 both species would reveal other distinctions. 



COLPOCHILA PULCHELLA, Sp.nOV. 



Breviter ovata (nee fortiter postice dilatata) ; sat nitida ; picea, 

 antennis palpis et coxis anticis (exempli typici) rufescentibus ; 

 elytris laete cyaneo-iridescentibus ; pectore dense cinereo-hir- 

 suto; abdomine sparsim setoso; capite (hoc sat bi'evi) confertim 

 rugulose, prothorace sparsim minus fortiter, elytris sparsim 

 fortiter, punctulatis ; pygidio obscure sat crebre granulato, 

 granulis singulis setas brevissimas singulas ferentibus ; 

 antennis 9-articulatis ; prothoracis basi bisinuata, quam 

 m.argo anticus minus hujus dimidio latiori, angulis posticis 

 (superne visis) valde acutis ; elytris (exempli typici) apice 

 sat late membranaceis, sutura apice spinoso-producta. 

 Mas (?) latet. 



Feminte autennarum flabello stipitis dimidio multo longiori, 

 3-articulato, stipitis articulis ultimis 2 intus vix dentatis. 



[Long. 7, lat. 3i lines. 

 The prothorax is f again as wide as long ; from the front angles 

 (which are acute and not very prominent) the sides diverge with 

 a moderate sinuation to slightly behind the middle where they are 

 strongly rounded ; from this point they converge with a strong 

 sinuation (as viewed from above) to the basal angles which are 

 quite strongly subdentiform, — even more so than in C. hella. 



This species is not very like any other known to me in shape being 

 short and "stumpy " in appearance but not at all strongly dilated 

 hindward as are the other short species ( C. ohesa, Burm., e.g.) known 

 to me. In colour it closely resembles some blue specimens mentioned 

 under the heading of C. hella, but differs from them by its much 

 less transverse prothorax (which is less narrowed anteriorly and 

 has its sides more sinuate behind the middle) and its very 



