Coleopterological Notices, VII. 34T 



DIPI.OCHILA Brull. 



The species of Diplochila are quite limited in number and 

 closely resemble each other in external characters. The labrum 

 is deeply sinuate at the middle of the apex, with the surface 

 convex and unimpressed, the left mandible acute, the right 

 broadly truncate in a line which is longitudinal when the mandi- 

 bles are closed. The fii'st three tarsal joints of the male are 

 somewhat excentrically dilated, and ai'e coarsely and uniformly 

 squamulose beneath. The forms known to me may be thus 

 identified : — 



Hind angles of the prothorax well defined. 



Prothorax but slightly narrower at apex than at base; outer striae of the 

 elytra generally somewhat distinct; bead larger, much more than % as 

 wide as the prothorax. 

 Elytra black throughout; apical angles of the prothorax more feebly 



deflexed and well rounded iiupressicollis Dej. 



Elytra black, the intervals alternately dark rufo-testaceous in color; 

 apical angles of the prothorax strongly deflexed and narrowly rounded. 



alternan§ n. sp. 



Prothorax much narrower at apex than at base, the marginal bead at apex 



much less broadly reflexed and the bead smaller, generally about ^2 as 



wide as the prothorax or less; outer striae of the elytra more or less 



completely obliterated. 



Protborax widest at the middle Cliens n. sp. 



Prothorax widest well behind the middle. 



Larger species, the apical thoracic angles well rounded. 



laticollis Lee. 

 Small, the apical angles right and only slightly blunt; surface more 



polished nupera n. sp. 



Hind angles of the prothorax obtuse and ill-defined; outer striae of the elytra 

 feeble obtusa Lee. 



The new species referred to in the table are described below. 



I>. alternans. — Moderately stout and convex, black, the elytral inter- 

 vals 2, 5 and 7 rufous; head polished, the remainder feebly alutaceous in 

 lustre. Head convex, nearly % as wide as the protborax, the ej^es rather 

 prominent and the neck but slightly constricted ; frontal impressions rather 

 pronounced ; mandibles feebly punctulate toward tip ; palpi piceous, the apices 

 of the joints pale. Prothorax nearlj^ % wider than long, widest at or just 

 before the middle, the sides almost evenly arcuate; basal angles more than 

 right but not rounded; disk very feebly convex, more strongly as usual 

 toward the apical angles, flattened toward the basal angles, the inner impres- 

 sion pronounced, the outer extremely feeble; median line fine but distinct; 

 surface wholly impunctate. Elytra % longer than wide, J^ wider than the 



