OF PHILADELPHIA. 299 



recurved, the tip very obtusely, but not very profoundly emargi- 

 nated : thorax with scattered profound punctures ; lateral edge 

 obtusely projecting a little, rather behind its middle : elytra with 

 numerous punctures, and with two regular double series of punc- 

 tures on the disk, one or two on the exterior submargin, and a 

 single subsutural series : beneath glabrous : nails with a robust 

 prominent obliquely truncated tooth beyond the middle. 



Length about one-half an inch. 



The color of young specimens is rather pale chestnut, but, as is 

 the fact with respect to many species, as they grow older, the color 

 becomes darker, and it is not uncommon to find individuals that 

 are almost black. 



[A species of Diplotaxis, previously described as M. liherta 

 Germ. — Leg.] 



4. M. SORDIDA. — Covered with short dense hair. 

 Melolontha sordida Melsh. Catal. 



Superior surface entirely covered by short close set hairs, which 

 are longest on the head, thorax, and base of the elytra ; the punc- 

 tures are also dense and confluent : clypeus with the edge reflect- 

 ed ; tip widely emarginated : thorax, lateral edge reflected, and 

 [198] a little dilated rather behind the middle: elytra having the 

 subsutural line obliterated : beneath nearly glabrous : nails with 

 an obliquely truncated, very robust tooth beyond the middle. 



Length about two-fifths of an inch. 



The color varies considerably. I have a specimen that is of a 

 pale chestnut color, and others that are dark dull brown. I have 

 found this species in May; and at Chinquoteague Island, many in- 

 dividuals occurred under yellow. pine trees in company with the 

 preceding species in October. It is very well distinguished from 

 other species by its equally distributed hairy covering. 



[Belongs to Diplotaxis, and afterwards described as D. carbo- 

 naria Burm. — Lec] 



5. M. FRONDICOLA. — Elytra punctured, and with two double 

 series of punctures; clypeus entire. 



Melolontha frondicola Knoch, Melsh. Catal. 



Body pale chesnut : head dusky, with large confluent punc- 

 tures ; transverse line angulated in the middle ; clypeus very ob- 

 tusely rounded at tip, almost truncated, the edge reflected : thorax 

 1825.] 



