200 ENTOMOLOGICAL NEWS [xXXI, '20 



Odonlocorymis, although it occurs in the Mexican creperus 

 Boh. and latiscapus Champ. Blatchley and Leng accord 

 Odontocorynus generic rank and separate it from Centriniis 

 by the exposed pygidium and the modified male antennae. 

 The pygidium in C. falsus is as completely hidden as in any 

 true Centrinus, hence Odontocorynus must be considered merely 

 a subdivision of Centrinus, as treated by Casey in his revision 

 of the Barini, unless a third genus be erected for C. falsus 

 based on the tuberculate thorax. This, oi course, is not 

 advisable. 



Zygobaris centrinoides new species. 



Body entirely black, shining, subrhomboidal. Head finely, sparsely 

 punctulate, beneath with a punctiform fovea near base. Beak long and 

 slender, regularly arcuate, nearly cylindrical; very little enlarged at base 

 and less so at apex; finely and sparsely punctured, more coarsely and 

 densely behind antennal insertion, an impunctate median line on basal 

 half, a small longitudinal impression above the base of each mandible. 

 Beak equal in length to the head and prothorax, separated from the head 

 by an abrupt bisinuate declivity. Mandibles stout, curved, notched 

 within. Antennae inserted just behind middle of beak; scape almost 

 attaining the eyes; first joint of funicle a little longer than the next two 

 joints combined, second joint one-half longer than the third, three to seven 

 subequal, the outer joints transverse; club elongate-oval, pubescent 

 throughout, more sparsely so at base, as long as the preceding five joints, 

 first joint comprising much less than half of mass. 



Pronotum wider than long, as wide as the elytra at base; sides regularly 

 arcuate; subapical constriction feeble; apex much less than half as wide 

 as base, the latter nearly straight and with a small ante-scutellar lobe; 

 disk glabrous at middle, sparsely punctured, more densely toward base, 

 median line smooth; pronotum at the sides coarsely closely punctate, 

 each puncture bearing an elongate, white, decumbent, hair-like squamule 

 arranged transversely; a few small scattered scales along the middle of the 

 basal thoracic margin. Scutellum quadrate, glabrous. 



Elytra more than twice as long as the pronotum; widest at basal tenth, 

 thence straight to beyond middle, then evenly rounded to apex; apices 

 conjointly rounded, completely concealing the pygidium; striae regular, 

 entire, moderately deeply impressed, very minutely and distantly punc- 

 tulate; intervals flat, much wider than the striae, each with a single ir- 

 regular series of shallow punctures, becoming confused and somewhat 

 biseriate toward base; each puncture of the intervals bears an elongate 

 white scale similar to those at the sides of the prothorax. 



Body beneath sparsely squamose, scales smaller and more slender than 

 those of the upper surface, condensed on the presternum before and be- 



