Coleopterological Notices, III. 73 



Mandibles obliquely truncate at apex, the truncation feebly, un- 

 equally, obtusely bilobed ; elytra strongly dehiscent in apical 

 third to half, the punctured series distinct throughout the width ; 

 genital armature sinuato-truncate and completely non-lobed in 



the male An drilling 



Legs long and slender, the tarsi as long as the tibiae ; body more 

 longitudinally convex ; mandibles deeply notched at apex, the 

 lobes acute and subequal ; elytra dehiscent in more than apical 

 third, deeply striato-sulcate throughout the width ; genital arma- 

 ture deeply bilobed in the male, the lobes very prominent. 



Capnochroa 

 Anterior tarsi not dilated in the male, but usually strongly compressed 

 and distorted ; body generally strongly, longitudinally convex. 

 Mandibles distinctly notched at apex, the apices acute and subequal ; 



antennas more or less compressed and serrate Cistela 



Mandibles very oblique and feebly notched at apex, the upper lobe 

 much longer and broader than the lower, acute ; antennae long and 

 filiform Androchirus 



XISTROPIS Sol. 

 Prostenus Horn nee Latr. 



The head in Xystropus is almost of the same form as in Helops 

 and some other allied genera of Tenebrionidae ; in Stenochidus it is 

 of a more strictly cistelide type, but still the general form of body 

 recalls the Tenebrionidae much more forcibly than any of the typi- 

 cally cistelide genera which follow. In fact there seems to be some 

 decided coordination between the form of the abdominal process 

 and relationship with the Tenebrionidae. This is my reason there- 

 fore for placing Xystropus and its allies first instead of last in the 

 series. 



In Xystropus as represented by californicus, the eyes are small, 

 short and strongly transverse, the antennae moderate in length, 

 stout, incrassate and compressed, the maxillary palpi moderate, with 

 the apex of the fourth joint but moderately oblique and the angle 

 at the base much less than right, resembling somewhat that of 

 Helops californicus. The prosternal process is horizontal poste- 

 riorly, then abruptly vertical to the level of the prosternal side- 

 pieces, where it becomes strongly dilated, widely separating the 

 latter at the posterior margin ; the hind coxae are distinctly sepa- 

 rated by a rounded abdominal projection. The legs are short, the 

 tarsi without lobes, clothed beneath with long coarse hair, and with 

 the basal joint of the posterior unusually short. The ungues are 

 Annals N. Y. Acad. Sci., VI, Nov. 1891.— 6 



