CiciiidcIiB of Massachusetts. 47 



another, a vestige of the triangular spot. Mr. Hentz has 

 thus designated six varieties. They live on sands in 

 great multitudes, in company with gencrosa and vulgaris. 

 I have them from Mount Auburn, in Cambridge, and 

 Martha's Vineyard. 



/ 



tt 



7. CiCINDELA DORSALIS, 



C. bronzed ; elytra white^ each with two curved lines 

 on the disC;, suture and curved branch near the base, 

 green ; tall testaceous. 



Length of male If, of female Uy breadth of male /^, 

 of female ^jy of an inch. 



Sat, Jonrn. Acad, Nat. Sciences, I. 20. 



Trans. Amer. Philos. Soc. N. Series, I. 415. PL 



XIII. Fig. 5. 



C. signata, Dejean, Cat. 1. Sj^ec. des CoJeopt. I. 124. 



This well marked and beautiful species has, as yet, 

 been found nowhere in this region except at Martha's 

 Vineyard, whence, with other valuable insects, I have 

 received numerous specimens through the kindness of 

 Dr. L. M. Yale, who informs me that they are very 



on the sandy shores of the ocean. They may 

 doubtless be found at Nantucket and many similar local- 

 ities about Cape Cod. The dilatation of the elytra 

 in the female is very remarkable ; so that while in the 

 male the margins are nearly parallel, then: terminations 

 rounded, and their outline curvelinear, their extremities 

 are apparently truncated, and their outline is altogether 

 angular in the female. Mr. Say's figure in the Philos. 

 Transactions represents the male. The same difference 



abundant 



