affecting the Turnips, Corn-crops, S^-c. 
•221 
Elater (Adrastus) acuminatus, Step., the pointed Click-beetle. 
It is elliptical, narrow, shining testaceous, and clothed with short 
ochreous pubescence ; head and thorax black, punctured ; the 
former with an impression down the centre, the latter longer than 
broad, the anterior margin and posterior angles, which are acu- 
minated, are testaceous ; antennae longer than the head and thorax, 
compressed, castaneous ; basal joint elongated, stout ; 2nd and 
3rd obovate, the latter a little the shortest ; 4th and following 
somewhat obovate, truncate, terminal joint fusiform ; scutel dark, 
oval ; elytra nearlv thrice as long as the thorax, punctured, testa- 
ceous, the suture often dusky, especially near the apex, with nine 
punctured striae on each ; underside piceous ; pectoral spine long 
and slender ; legs ochraceous ; length 2 lines, breadth about half 
a line. 
1"2. Also frequents corn-fields, hedges, grassy and woodv places, 
from April to August, but its economy is unknown. It is the 
Elater (Athous) longicollis of Fabricius, the long-necked Click- 
beetle. The male is long and narrow, ochreous, and clothed with 
very short pubescence of the same colour ; head and thorax thickly 
and coarsely punctured, dull black ; the anterior margin of ihe latter, 
the sides and base, including the angles as well as the clypeus, 
more or less ferruginous in many examples ; this portion of the 
head is very concave, the margin thickened and slightly reflexed ; 
the antennae are more than half the length of the body, slender, 
and compressed ; the basal joint is clavate, and not stouter than 
the following, which are elongate-clavate, and truncated, excepting 
the 2nd, which is minute, and the terminal joint, which is sub- 
fusiform (fig.y) ; the head is subtjuadrate ; the eyes very promi- 
nent ; thorax long and narrow, not much broader than the head 
before, gradually and slighdy increasing in diameter to the base; 
the angles short and truncated laterally; the sides are nearly 
straight, but slightly convex near the middle ; down the back is a 
faint channel, with a slight fovea on each side near the base; 
pectoral spine long and slender ; scutel small, black, and punc- 
tured ; elytra more than twice as long as the thorax, and a little 
broader, 1 inear, the apex ovate, the costal margin luscous and 
verv eenilv concave near the base, thev are sli^hilv slossv, a little 
rugose, with nine distincdy punctured striae o.i each; wings 
ample; underside more or less piceous, excepting the bculy, 
which is ochreous and very glossy, sometimes pitchy down the 
centre, or having two fuscous spots on each segment ; legs longish, 
slender, and deep ochreous ; tarsi tapering, basal joint elongated, 
4th minute ; length 4.\ lines, breadth rather more than 1 line 
(fig. 38). The female differs so considerably from the male in 
form that the name of longicollis is not appropriate ; it is much 
broader and larger, the antennae are not so long, the 3rd and fol- 
