22 LTCID^. 



Thorax one third broader than long, yellow, with a rather broad 

 black stripe in the middle ; the posterior angles acute, but not much 

 diverging. Elytra yellow, with the apical third black, and with a 

 black band at one third from the base ; each elytron has four costse, 

 the interstices with rather close transverse costse. The middle of the 

 sternum frequently yellow. 



Variety. — The variety named discrepans by Newman differs from 

 the above in having the black of the fascia ascending at the suture 

 and surrounding the scutellum. The posterior angles of the thorax 

 in the type specimen are slightly diverging. 



Calopteron dorsale. 



(Plate VI. fig. 2.) 



Digrapha dorsalis, Netcm., Entom. Mag., 1838, v. p. 381. 



Nigrum ; thorace lateribus flavis ; elytris nervis quatuor elevatis, 

 interstitiis reticulatis, flavis, fascia ante medium ad marginem abbre- 

 viata apiceque late cyaneo-nigris. Long. 5| lin. 



Hah. East Florida. 



The yellow at the sides of the thorax varies; in the type speci- 

 men it is very narrow, but in another it is broad. The elytra are 

 slightly gibbous at the anterior fascia, and distinctly so in the apical 

 region, 



Calopteron divisum. 



(Plate VI. fig. 3.) 



Digrapha divisa, Netvm., Entom. Mag., 1838, v. p. 381. 



Nigrum ; thorace lateribus elytrisque flavis, his apice late cyaneo ^ 

 nigris. Long. 5-9 lin. 



Hah. North America. 



Very close to C. dorsale ; but besides the absence of the anterior 

 fascia of the elytra, it differs in having the elytra rather less widened 

 in the apical region, and less undulating above. The thorax has 

 generally the sides broadly margined with yellow, but in some spe- 

 cimens it is almost entirely black. 



"With regard to the three foregoing species, C. typicum, C. dorsale, 

 and C. divisum, it must be observed that the synonymy given in 

 Dr. Le Conte's ' List of Coleoptera of N. America,' and followed in 

 Gemminger and Harold's Catalogue of Coleoj)tera, is evidently in- 

 correct. 



C. apicale, Le C, is placed as a variety of typicum ; and in the 

 footnote Dr. Le Conte states that '* from some clerical error in the 

 description, divisa, Newman, is irrecognizable, but is probably the 

 same as apicalis, LeC." The clerical error alluded to is that New- 

 man wrote " elytra hasi nigro,'" instead of " apice nigro." It is 



