BUFFALO SOCIETY OF NATURAL SCIENCES 57 



Prof. Franklin Sherman Jr. has sent me both sexes from North 

 Carolina and I have received a pale specimen from Mr. J. D. 

 Evans that was taken at Sudbury, Ontario, This I believe is 

 Provancher's Carynota picta. 



4. Carynota porphyrea Fairmaire. PI. 2, fig. 27. 



This differs from the preceding in being shorter, in having 

 the dorsum more elevated with a stronger impression on each 

 side, the apex much shorter and more abrupt, and the pale 

 markings reduced to an oval patch either side on the margins 

 behind the humeral angles, and an irregular area on the meto- 

 pidium. Here the elytra are a deeper brown and the plates of 

 the male are short, broad at the base, with the sides very oblique 

 on the basal half then subparallel to the rounded apex. In 

 both this species and marmorata there is a transverse lozenge 

 shaped pale mark near the apex of the pronotum which touches 

 the sides and has a central spot of the ground color on the 

 dorsal carina. 



This form agrees very closely with Fairmaire's description 

 of porphyrea and I feel little doubt about the determination. 

 Whether this should be considered as distinct from marmorata 

 is somewhat questionable but there can be no harm in listing 

 them as distinct until fuller observations establish their rel- 

 ative position. This is the type of Stal's genus Optilete. 



Genus Thelia A. & S. 



The males of our two species may be separated as follows: 



Pronotal horn long and thick, projecting almost horizontally 

 forwards, surface of the pronotum hairy, closely punc- 

 tured, without longitudinal rugae, 2, Uhleri Stal. 



Pronotal horn shorter and more slender, directed upward and 

 forward at an angle of 34 to 40 degrees; surface of the 

 pronotum not obviously hairy, more coarsely punctured 

 with seven or eight longitudinal rugae, 



1, bimaculata Fabr. 



1. Thelia bimaculata Fabricius. 



This is the type of Amyot and Serville's genus. The 



males have a conspicuous broad yellow vitta on either side. 



The females have the yellow vitta replaced by a greyish patch 



