412 RHYNCHOPHORA. [Hylastes. 
scrobes ; the tarsi have the third joint bilobed and scarcely broader than 
the preceding ; in size the species are rather variable ; they attack firs 
and pines, and are often found at the roots as well as under the bark ; 
the sexual differences are not striking, but in one or two of the species 
the males have a small pubescent fovea on the last ventral segment of 
the abdomen. 
I. Thorax longer than, or at least as long as, broad, 
punctured on disc, with the exeeption of a broader or 
narrower central line. 
i. Length 4 mm. ; central line of thorax not raised ; 
elytra glabrous or with very short hairs at apex 
only. 
1. Thorax considerably longer than broad, with the 
sides subparallel; elytra longer Pinin Wiereet: 
2. Thorax not much longer than broad, with the 
sides somewhat rounded; elytra shorter . . . H. cunicunarius, Er. 
ii. Length 2-3 mm.; central line of thorax more or 
less raised; elytra with rows of recumbent or 
slightly erect hairs on the interstices. 
1. Rostrum without furrow; sides of thorax 
TOUNGED. « «0c .s ee IR Eee ee 
2. Rostrum with a fine longitudinal furrow at base ; 
sides of thorax almost parallel behind. . . . H, an@usratus, Herbst. 
Il. Thorax broader than long, somewhat rugose, with 
central line raised and somewhat carinate; third 
tarsal joint dilated and bilobed ; mesosternum with a 
small prominence between the intermediate coxe 
(Hylurgops, Lee.) . . - 2 2 ee ee ee H, PALLiIatus, Gyll. 
H. ater, Payk. 
H. opacus, Ex. 
HH. ater, Payk. (pinicola, Bedel). Elongate, cylindrical, black, 
shining, nearly glabrous ; head much produced in front, antenne ferru- 
ginous ; thorax considerably longer than broad with the sides subparallel, 
rather closely and strongly punctured on disc, much more closely at 
sides, with a more or less distinct impunctate, but not raised, central 
line; elytra with coarse crenate strie, interstices granulately rugose ; 
legs black or pitehy black, tarsi, and often apex of tibiz, red or reddish. 
L. 4-43 mm. 
Male with the posterior tibia thickly villose on their inner margin 
towards apex, last ventral segment clothed in middle with thick yellow 
tomentose pubescence. 
Varieties occur in which the thorax is pitchy and the elytra brown, 
and occasionally the whole insect is ferruginous; these variations in 
colour, whieh occur also in many of the allied species, are in great 
measure due to imperfect maturity. 
Under the bark of decaying trunks of various species of pine (Pinus silvestris, 
maritima, &c.) ; also in stumps; it is especially a root feeder like other members of 
the genus; often found in sandpits and by sweeping herbage ; rather common and 
generally distributed throughout England ; Scotland, common in the bark of fir logs ; 
Ireland, Rathfarnham, Armagh, &c., and probably common. ie 
H. cunicularius, Er. Closely allied to the preceding which it 
