51 



One specimen, captured 6th of March 1905 near Esta- 

 cion Santa Rosa in the Province of Mendoza (Rep. Argen- 

 tina). The type specimen is in my collection. 



In comparison Avith the B. dehiscens and also with 

 B. coptogonus Rég. inédit, the B. Engelharti is smaller 

 and much more narrowly shaped ; the striæ of elytra 

 are deep and strong, much more so than in the other two 

 species. To assist in the description of B. Engelharti, I 

 note that B. dehiscens has a very strongly punctured 

 scutellum (its punctures being stronger than the punctua- 

 tion of the thorax and as strong as tiie punctures in the 

 neighbouring striæ of elytra): the interstices of the elytra 

 are perfectly fiat and not very shiny, and the 4th, 5th, Gth 

 and 7th and the 9th interstice has in front a regular row 

 of punctures each: its forehead (clypeus etc.) moderately 

 narrowed in front. It is also worthy of notice that in B. 

 Engelharti the dorsal striæ of elytra are strong quite 

 near to the base, and tiiat the interstices between 1st and 

 2nd and between 3rd and 4th stria at apex are not broader 

 than the striæ, while in B. dehiscens the striæ almost 

 disappear near base, and the interstices between 1st and 

 2nd and between 3rd and 4th stria at apex are con- 

 siderably broader than the striæ. 



Though the type specimen is of common Berosus colour 

 it is rather dark. 



I dedicate this new species to my friend, Mr. Chr. 

 Engel hart, who has always taken great interest in my 

 entomolooical endeavours. 



