18G 
BRITISH BEETLES. 
one of the species, which is fleshy, arched, cylindrical, 
and without eyes or legs ; — resembling, in short, those 
of tho tetramerous Scolytidx and Gurculionidse ; it 
appears to make straight burrows in the solid wood of 
felled oaks. 
Our common Lnjctus canaliculcbtus, which has a 
depression on the prothorax, is found on fresh oak 
palings. 
The Bostriciiid® present considerable resemblance 
to the Anobiulx, from which they differ especially in 
the structure of their tarsi, wherein the first joint is 
very small, and the second and apical much enlarged. 
The spurs to the tibiae are also more developed, 
especially in the front legs ; tho anterior coxae are 
very large ; the body is harder, and not so pubescent ; 
the head is not retractile, but hidden by the great 
bulk of tho thorax in front ; and tho elytra are ofton 
obliquely truncate at the apex ; in which last character 
(and in general facies) thoy are exceedingly like cer- 
tain of tho Scolytidx , wherein tho number of joints in 
tho tarsi is different. 
Their larvae, also, appear to resemble those of the 
Ptinidx, but to be less wrinkled transversely ; having, 
moreover, two four-jointed antennae and no eyes, 
whilst the latter have 'exceedingly small two-jointed 
antennae and very minute spherical eyes, situated in a 
depression near tho base of the mandibles. 
Tho largo and very rare Bostrichus eapucinus was 
last taken noar Iiighgate on a felled oak, about the 
year 18GG ; and the little Bhizopertha pitsilla, super- 
ficially very like a Tomicus, but in which tho structure 
of tho tarsi is cxactl the same as in tho Cissidx, 
