220 
Observations on the various Insects 
joint which is fusiform (fig. d) ; head suborbicular, the clypeus, 
forming a projection over the trophi ; thorax twice as broad, oval, 
very convex, the posterior angles not acute, a little divaricating; 
pectoral lobe not long and tapering ; scutel ovate- trigonate ; 
elytra broader than the thorax, elliptical, the apex ovate or sub- 
conical, with nine punctured striae on each, most distinct at the 
base ; wings ample ; legs not long ; thighs stoutish, three basal 
joints of tarsi cushioned beneath ; 2nd and 3rd dilated ; 4th 
minute; 0th, slender ; claws small ; length 5J to 6 lines, breadth 
1 5 to 2 lines (fig. 35). 
10. Abundant in June, July, and August, upon oaks and alders 
in woods, and not unfrequent in corn-fields, but nothing is known 
of its economy ; it has received the name of 
Elater (Dolopius) marginatus, Limi., the margined Click- 
beelle, and is tlie E. suturalis of Marsham. It is narrow and 
elliptical, shining, testaceous, and clothed with short ochreous 
pubescence ; antennae longer than the head and thorax, slender, 
compressed, fulvous, and pubescent ; basal joint the stoutest, 
clavate; 2nd and 3rd the slenderest, elongated — the latter a little 
the shortest; 4th and following stouter and clavate; terminal 
joint subfusiform (fig. e) : head and thorax thickly and strongly 
punctured ; the former obtuse, convex, and pitchy ; the latter 
longer than broad, very convex, piceous, anterior and posterior 
margins bright ochreous, including the angles, which are very 
acute and slightly divaricating ; scutel subovate ; elytra linear, 
thrice as long as the thorax, sometimes rather broader, attenuated 
or ovate behind, ochreous or reddish brown, with a space down 
the suture, and sometimes the costal margin brown ; they are 
somewhat scabrose, with nine distinctly punctured striae on each, 
the outer margin slightly concave towards the base ; wings ample ; 
underside more or less fuscous or castaneous ; the pectoral spine 
long and narrow, but thick ; apex of abdomen testaceous ; legs 
moderately long, slender, and pale ferruginous ; tarsi, with the 
terminal joint the slenderest, basal joint elongated ; claws minute ; 
length 3;^ lines, breadth f (fig. 36). An exceedingly variable 
species in outline and colour, some sjiecimens being broader than 
others, and the antennic arc apparently stouter in the males; 
some exam])les are entirely bright ochreous or cbesnut, and others 
are uniforndy of a pitchy colour. 
11. This species also frequents corn-fields, meadows, hedges, 
&c., but whether its larva is injurious to the crops has not been 
ascertained ; it is so like the former one {E. marginatus) in minia- 
ture, that it will be unnecessary to figure it. It is about the size of 
E- limhatus of Linnaeus, but the thorax is narrower and less convex, 
and there is generally a distinct sort of shallow groove down the 
crown of the head. It is distinguished by the name of 
