8 Randalls New Species of 
Of 110 native species of this genus contained in my 
collection, this is by far the most brilliant in its coloring. 
A specimen occurred in Cambridge, Mass., June, 1831, 
and several others in Maine, June, 1836, in the vicinity 
of the Saddleback Mountains, and northern part of the 
Umbagog chain of Lakes. 
9. ELATER PRODUCTUS. 
@ E. antennis profundé serratis ; clypeo valdè prominente; tho- 
race quadrato, hirsuto, punctulato; angulis posticis rufis, subrec- 
tis, leviter reflexis; elytris piceis, subæratis, profundé striatis, et 
punctulatis. 9 Thorace valde convexo rufo, aut fusco marginato, 
angulis posticis dilatatis, antennis simplicibus. 
d Head deeply punctured, hairy : clypeus projecting : 
antenne robust, deeply, and somewhat obliquely serrated 
on one side: thorax nearly quadrate, deeply punctured, 
hairy, posterior angles reddish brown, almost rectilinear, 
somewhat reflexed, excavated on the inner side, con- 
siderably rounded: seutel subrotund: elytra pitchy, 
somewhat bronzed, deeply striate, universally and deeply 
punctured, so as to appear granulated: body beneath 
black, punctured, with short grayish hairs: feet piceous. 
9 Differs from the male, by its greater size, more 
dilated form, its very convex thorax margined with red- 
dish brown, its less prominent eyes, and especially by its 
simple, though robust antenna. 
d Length twelve twentieths of an inch. Breadth of 
thorax about two twentieths. 9 Length rather above 
fourteen twentieths of an inch. Breadth of thorax 
nearly three twentieths of an inch. 
Both sexes of this insect occurred June 1836, at the 
