﻿MELOLONTHIDiE OF THE UNITED STATES. 269 



12. D. Harperi, ferrugineo-picea, oblonga paulo convexa, nitida, capite fortius confertim punctato, cly- 

 peo anguste marginato, rotundato, sutura frontali impressa, tborace fortius sat dense, medio minus 

 dense punctato, antrorsum subangustato, lateribus latius rotundatis, angulis posticis obtusis, elytris 

 fortiter punctatis, subtricostatis, costis fortius uniseriatim punctatis, tibiis anticis obtuse tridentatis. 

 Long. -37. 



? Blancb. Cat. Col. Mus. Hist. Nat. Paris, 171. 



Burm. Lamell. 2, 2d, 263. 



Fort Riley, Kansas, Dr. Wm, A. Hammond ; found according to Blanchard in Georgia, 

 and Burmeister in S. Carolina. Differs from the next two species by the less rounded 

 sides of the thorax, and the more narrowly margined clypeus ; the latter is rounded 

 in the arc of a circle. The punctures of the costse of the elytra are somewhat irregu- 

 lar ; the teeth of the anterior tibiae are obtuse, and the two lower ones are nearer. 



13. J), f r on dicola, oblonga convexa, fusco-ferruginea, nitida, [capite dense punctato, clypeo vix 

 bemihexagono, anguste marginato, sutura frontali impressa, tborace dense punctato, lateribus rotun- 

 datis, angulis posticis obtusis, elytris punctatis, tricostatis, tibiis anticis dentibus tribus magis 

 approximatis. Long. *28 — -32. 



D. testacea Burm. Lamell. 2. 2d, 263. 

 Melolontha frondicola Say, Journ. Acad. 5, 198. 



A common species from New York to Texas, and Kansas. The head is always 

 slightly hemihexagonal ; the under part of the claws is not shorter than the upper 

 portion. The punctures between the costse are confused, and the costse are marked 

 with a row of smaller punctures. 



The species described by Mr. Blanchard as Say's is something quite different. 



14. D. d u b i a , oblonga, convexa, fusco-ferruginea, nitida, capite dense punctato, clypeo rotundato, mar- 

 ginato, sutura frontali impressa, tborace dense punctato, lateribus rotundatis, angulis posticis obtusis, 

 elytris fortiter punctatis, tricostatis, tibiis anticis bidentatis. Long. -32. 



Texas, two specimens, Mr. Haldeman. So similar to the preceding, that it might 



readily be confounded with it. On comparison, however, several differences may be 



found : the thorax is uot so short, and the posterior angles are less obtuse ; the clypeus 



is rounded in an arc of a circle, and more strongly margined ; the upper tooth of the 



anterior tibise is almost entirely obliterated. 



15. D. t r unc atula, oblongo-ovata, convexa, picea, capite confertim punctato, hemihexagono, clypeo 

 tenuiter marginato, antice truncato, sutura frontali profunda, tborace sat dense punctato, lateribus ob- 

 lique gequaliter rotundatis, angulis posticis obtusis rotundatis, elytris grossius punctatis, tricostatis, 

 tibiis anticis tridentatis. Long. *32. 



One specimen, Kansas. The costse of the elytra are without punctures, or with 

 only a very few small ones. The upper tooth of the anterior tibise is acute and dis- 

 tant from the others. 



16. D. consors, oblonga, nigro-picea, convexa nitida, capite confertim punctato, hemihexagono, clypeo 

 tenuiter marginato, antice truncato, sutura frontali profunda, thorace minus dense punctato, lateribus 

 rotundatis, angulis posticis obtusis rotundatis, elytris grossius punctatis tricostatis, tibiis anticis triden- 

 tatis. Long. -3. 



