NATURAL SCIENCES OP PHILADELPHIA. 71 



1. P. Burgessi, sp. n. 



Black, head, thorax, legs, and aiitennre bright red, club of the 

 latter fuscous; elytra bright blue; thorax nearly smooth, con- 

 vex, sides rounded, elytra irregularly rather shortly punctate. L. 

 .16. Key West, Florida. 



Crepidodera, Chev. 



Distinct b}' the striate glabrous elytra, and the thorax with a 

 well marked posterior impression terminating in a plica. 



1. C. rufipes (Linn.), F. S. n. 545. erythro-pus, Mels., Pr. Acad., iii. 165. 



Oblong ovate, shining; breast and abdomen black; head, thorax, 

 antennae, and legs red ; elytra blue, punctate, striate ; thorax 

 smooth. L. .10. Middle and Southern States. This appears to 

 me certainly identical with the European species. 



2. C. helxines (Linn.), F. S. n. 540. nana, Say, J. Acad., iv. 86. violaeea, Mells. 

 Pr. Acad., iii. 164. areola, Lee. opuleiita, Lee. 



Oblong ovate, shining, beneath bluish-black, above green, 

 purple, or fcneous, legs and antennae red; thorax sparingly 

 punctate, elytra deeply punctate striate. L. .10. Atlantic region, 

 California. 



3. C. atriventris (Mels.), \. c, p. 165. 



Testaceous red, shortly ovate, ventral segments black; thorax 

 smooth, deeply impressed at the base ; elytra not very deeply 

 punctate striate. L. .06. Atlantic region. 



4. C. modeeri (Linn.), F. S. n. 539. 



Ovate, very shining, brassy; antennae and legs pale red ; thorax 

 with the base lightly impressed, the terminal plica very deep ; punc- 

 tuation fine and not close, produced in front of the scutellum ; 

 elytra strongly punctate striate, strice subobsolete apically ; apical 

 region pale yellow. L. .0V-.08. Hudson's Bay. 



V. mancula, Lee. Larger, elytra hardly paler at the extremity. 

 L. .9. Oregon (Leconte). 



5. C. scabricula, sp. n. 



Oblong oval, ferruginous red, antenna? with the apex fuscous, 

 elytra violet blue ; head smooth, thorax with a very deep basal 

 impression, abruptly limited on either side, broader than long, 

 sides rounded in front, disk with a few scattered deep punctures ; 

 scutellum red ; elytra deeply punctate striate, the punctures 



