COLEOPTERA OF BAJA CALIFORNIA, 439 



As ofaca must now be placed in Calospasta, it can be 

 separated from Fuller i in the following manner: 



Thorax moderately shiuiug with scattered coarse punctures; elytra entirely 

 covering the body in both sexes which are winged. FulUri. 



Thorax opaque comparatively smooth and impunctate; elytra covering the 

 body in the male, body winged, elytra much abbreviated and diver- 

 gent from the scntellum, body opterous in the female. opaca. 



From the study thus briefly made the further conclu- 

 sion suggests itself that the tribe Meloini, based as it is 

 on apterous forms and the consequently short metaster- 

 num, is unnatural, and that the genera composing it 

 should form part of other tribes. Thus Meloe would as- 

 sociate with Cantharis, Henous with Epicauta, the two 

 species of Nomaspis divide — one toward Cantharis, the 

 other to Epicauta. Megetra and Poreospasta ally with 

 Calospasta, Tegrodera et al. Cysteodemus seems un- 

 related. We have already in Hornia an apterous Sitaride, 

 although Mr. Champion has allowed himself to be misled 

 by the prevaiHng methods of classification, and has formed 

 for it a tribe apart. 



Pyrota trochanterica n. sp. 



Elongate, black, feebly shining, head and thorax in 

 part yellow, elytra with the suture, margin and apex nar- 

 rowly yellow and an arcuately oblique yellow vitta each 

 side of the scutellum. Antennae black, slender, setace- 

 ous. Head elongate oval, very sparsely punctate, occi- 

 put black, front yellow with a central piceous spot and 

 four smaller ones anteriorly in an arcuate row. Labrum 

 black, coarsely punctate. Thorax much longer than 

 wide, sides parallel behind, obliquely narrowing in front, 

 disc rather flat, smooth, a few punctures at the sides, 

 color in great part black, in front yellow to a variable ex- 

 tent. Scutellum black. Elytra moderately closely punc- 

 tulate and vaguely tricostate. Body beneath black. 



2d Seb., Vol. IV. ( 29 ) June 2, 1894. 



