OF NORTH AMERICAN INSECTS. 257 



with white hair ; elytra dark castaneous. with suture, hume- 

 ral line, and irregular spots, and the disk white : postpeetus 

 with thick long yellow hair. 



Length very little smaller than the preceding. 



Inhabits Massachusetts. 



This cannot be referred to Melolontha 1 0-limata of Mr Say, 

 which has its clypeus emarginate, and differs from it in 

 other respects ; both are somewhat related to M. fullo of Eu- 

 rope. I never saw but two specimens. 



PVROCHROA. 



9. P. ? vnjvmata. Black, hairy ; head deep black, polish- 

 ed; antennae and palpi ferruginous at base; thorax ferrugi- 

 nous, polished ; disk black : elytra hairy, punctured. 



Length nearly 3-10ths of an inch. 



Inhabits Massachusetts 



10. P. ? clegans. Slightly hairy ; head deep black, polished ; 

 thorax, palpi and legs bright yellow, polished; elytra blue 

 black, punctured, with a terminal yellow spot, polished, raised 

 and impunctured. 



Length not quite J-lOths of an inch. 



Inhabit- Massachusetts. 



The two last insect- answer well to the characters of Pij- 

 rochroa as given by Latreille and Lamarck, and cannot In 

 referred to any other genus mentioned in the books. The 

 palpi in both have their last joint larger, subsecuriform. Tin 

 penultimate article of the tarsi i- remarkably bifid. Their 

 antenna have subcylindrical joints, and are inserted into a 

 groove of the eye. 



vol. in. — 3 T 



