Coleopterous Insects of Maine. 91 
Body somewhat cylindrical, entirely blue, or blackish 
blue, and punctured: front flattened: antenne, second 
joint one half the size of the third, last elongated: thorax 
more polished, less punctured and much narrower than 
the elytra, somewhat cylindrical, canaliculate in the mid- 
dle; before, broadly rounded ; behind, a good deal con- 
tracted: elytra somewhat rounded, so densely punctured 
as to appear granulated, with five equidistant, rather 
broad, and not much elevated lines; apex obtuse. 
Length about seven tenths of an inch. 
Occurred June, 1835, at Hallowell, on a log in the 
Kennebec river. It is a remarkable insect, easily iden- 
tified. 
dings . 32. ELEDONA DEPRESSA. 
LT ETE RM 
E. corpore nigro, , vi, subtus piceo; antennis piceis ; thorace 
sub-depresso, granulato, margine sub-dilatato: elytris parum con 
vexis, singulis decem-carinatis; spatiis mediis rugosis aut ar 
punctulatis; apice subrotundato ; pedibus piceis. 
Body black, somewhat smooth, beneath piceous : head 
finely granulated, with an almost obsolete line between 
the eyes: antenne piceous : thorax somewhat depressed, 
finely granulated ; margin somewhat dilated, not greatly 
projecting anteriorly : elytra only slightly convex, with 
ten elevated lines on each, including the marginal one ; 
intermediate spaces rugose, owing to transverse punctures ; 
apex rounded : body beneath, and feet ferrugineo-piceous. 
Length one fifth of an inch. 
Occurred at Hallowell, April, under the bark of 
prostrate pine logs. 
"The smallest species that I have seen, unlike the E. 
cornita F. and E. corticola, Say. This species is with- 
