Cicindel(B of Massachusetts. 51 



little forwards; in hirticollis they are parallel and trans- 

 verse ; in vulgaris they are parallel and directed back- 

 wards, and in generosa they converge and form a triangle. 

 By these marks alone, the four species may always be 

 readily distinguished. The markings are generally more 

 or less effaced, and sometimes obsolete, especially in the 

 male ; and as in the marginata^ it is much more common 

 to find the markings defective than perfect. In the male, 

 the green color seems to predominate over the cupreous. 

 It is a very active insect, and not easily captured. They 

 have been taken in Massachusetts on Ipswich Beach, 

 Chelsea Beach, and Martha's Vinevard. 



,^ 



11. CiCINDELA DUODECIMGUTTATA. 



C obscure bronze above; elytra with the interrupted 

 humeral and terminal lunule, and the flexuose, abbreviated, 

 interrupted band white. 



Length i^ to U> breadth }^ of an inch. 



Plate III. fig. 3. 



Dejean, Spec, des CoUojpt, I. 73. 



Head obscure bronze, somewhat brassy; front pubes- 

 cent with cinereous hairs ; antennae with the basal joints 

 bronzed green, terminal joints dusky; labrum white, 

 narrow, somewhat sinuate anteriorly, with six or eight 

 marginal punctures bearing hairs; mandibles, which are 

 nearly twice as long in the male as the female, dark green, 

 with a large, white spot at base anteriorly ; palpi dark 

 green, second joint of the labials white in the male. 



Trunk. Thorax quadrate, sides somewhat curvelinear, 

 hairy at margin ; impressed lines greenish blue ; feet 

 green ; thighs cupreous ; elytra obscure bronze, sub-paral- 

 lel, convex, rounded and finely serrated at tip; densely 

 punctured, with traces of two lonorltudinal sf?ries of kroner 



