txires 



Length nearly one fifth of an inch. 



Related to coUaris, lUig., and coUata, Fabr., particu- 

 larly the latter, from which it may be distinguished by 

 its blue elytra, and immaculate face. A specimen was 

 sent to me by Mr. Barabino from New Orleans. 



^ 



North American Coleopterous Insects. 199 4^ 



I 



I 



Inhabits IVIexico. 



Head punctured^ sanguineous, beneath the antennae 

 w^hitish : vertex with an impressed dot : antennce fuscous, 

 or blackish, basal joints whhish beneath : thorax sanguin- 

 eous, punctured, with two indented dots : elytra densely 

 punctured, with a common suture and vitta blue, the 

 latter oriorinatins on the humeral tubercle and abbre- 

 viated before the tip : pectus ferruginous : postpectm and 

 venter black: feet white. 



Length one fifth of an inch. 



Distinguishable from other species by the indentations 

 of the head and thorax, combined with the elytral vittse 

 and irregular puncturing. 



The G. vittata, Fabr. is common in Mexico. 



Altica, Geoff. 



1. A. mellicdllis. Head black; tliorax yellowish; 



elytra blue. 



Inhabits Louisiana. 



Head blue-black, with rather large punctures each 

 side, between the antennae convex, dark piceous : antenna 

 black-brown, three basal joints honey-yellow beneath : 

 jpaljpi black: thorax pale honey-yellow, punctures not 

 obvious: scutel impunctured : elytra dark violaceous- 

 blue, with numerous, small, distant, not profound punc- - 



: pectus yellowish : postpectm blackish : venter 

 blackish, last segment dull yellow : thighs honey-yellow : 

 tibite black, yellowish at base : tarsi black. 



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