March, '05] ENTOMOLOGICAL NEWS. 73 



Antennae i2-jointed, attaining the middle of the elytra, at least in the 



male. 



Claws simple, last joint of antennae two-thirds as long as the eleventh. 



Glyptoscelimorpha. 



Claws cleft at tip ; last joint of antennas barely visibly shorter than the 

 eleventh. ... ... Dystaxia. 



Antennae n-jointed, stouter, scarcely passing the hind angles of the pro- 

 thorax in either sex ; last joint a little longer than the tenth ; 

 claws cleft . Schizopus. 



The fourth and fifth joints of the antennae in Schizopus are 

 both longer than wide in the only specimens at hand, and not 

 wider than long as indicated by Horn. 



It is pertinent to say in passing that Kerremans in the work 

 above cited has badly bungled the characters of this group, 

 the antennal characters of Schizopus and Dvsta.via being inter- 

 changed, while the antennae of Glyptoscelimopha are said to 

 barely reach the middle of the pronotum. Such mistakes are 

 especially unfortunate in a work of such (supposedly) high 

 authority as that of the Belgian specialist. 



POLYCESTA. 



There can be no doubt that the Texan P. data, now recorded 

 on our lists as a variety of californica, should be restored to 

 specific standing. The former differs from the latter quite 

 constantly in its more obviously concave front, finely carinate 

 median thoracic impression, slightly less obtuse hind angles 

 of the prothorax and the less densely more unequally punc- 

 tate intercostal interspaces of the elytra. In addition to the 

 above differences, which were given by Le Conte, the formation 

 of the last ventral segment is conspicuously different, being 

 angulate at tip in californica and lobed in data 



Our third species tr/a^-r-differs somewhat from both the 

 above in the sculpture of the upper surface as heretofore de- 

 scribed, but a more important means of separation exists in 

 the first ventral suture. Our species are separable as below : 



First ventral suture broadly rather strongly posteriorly arcuate ; protho- 

 rax with a strong median and well defined lateral impressions ; 

 elytra strongly costate. 



Apex of last ventral angulate at middle, the sides of the angle scarcely 

 sinuate. californica. 



