302 ACADEMY OF NATURAL SCIENCES 



fluent behind ; striae slightly impressed, with small punctures ; 

 on each elytrum is a small white dot on the middle of the sutural 

 submargin, another behind the middle and approaching nearer 

 to the suture, three oblique ones on the exterior submargin, and 

 a transverse one at tip near the suture. 



Length two-fifths of an inch. 



This species resembles'^the sepvlchralis Fabr., but it differs in 

 having the clypeus emarginated, the hairs of the body elongated, 

 and the spots of the elytra fewer in number. In form it is more 

 slender than that well known species, and its color more opaque 

 and less metallic. It is much more closely allied to the C. hirta 

 Fabr., of Europe, the spots being nearly similar ; but the vestita 

 is one half smaller, and the hair is much coarser and much less 

 abundant ; can it be a variety of that species ? 



I have met with but two specimens, one beloning to the Phila- 

 delphia Museum, and the other sent to me by Dr. T. W. Harris, 

 of Milton, Massachusetts. [202] 



[Unknown to me ; believed by Schaum and other entomolo- 

 gists to be the European species. — Leg.] 



LUCANUS Linn. Latr. 



1. L. PLACIDUS. — Head small, slightly concave ; tooth of the 

 mandibles emarginate. 



Body dark reddish-brown : head slightly concave, rather nar- 

 rower than the thorax : mandibles hardly as long as the head, 

 regularly curved ; tooth a little beyond the middle, not very pro- 

 minent, but rather wide and emarginate at tip : elytra without 

 striae : anterior tibiae about four-toothed, superior tooth small. 



Length one inch. 



I found this species when with Major Long's party in Arkansa. 

 It differs from the dama Fabr. in being smaller, in having the 

 head narrower than the thorax, the mandibles shorter and less 

 arcuated, and their tooth wide and bifid at its tip. 



[Appears to be the female of L. lentus, a species cited from 

 Say, but of which, as Burmeister observes, no description can be 

 found in his writings ; it was first published under that name by 

 Laporte, in his Hist. Nat. 2,71. The name placidus has greatly 

 the priority. — Lec] 



[Vol. V. 



