438 RHYNCHOPHORA. | Dryocetes. 
and suture raised; tibie less dilated than in the preceding species, 
L, 23-33 mm. 
In decaying oaks ; also sometimes in chestnuts and holly ; common and generally 
distributed from the Midland districts southwards; abundant in Sherwood Forest ; 
Manchester and Liverpool districts; apparently less common further north and 
scarce in the extreme northern counties of England; Northumberland and Durham 
district ; “ Gibside, in oak bark, August” (Bold) ; not recorded from Scotland ; it 
probably occurs in Ireland. 
D. alni, Georg. (Marshami, Rye ; Bulmerincqut, Kol., teste Sharp ; 
1 fuscus, Marsham (Rye) ). Oblong, almost cylindrical, pitehy black, 
with the elytra lighter, antenne and legs ferruginous ; upper surface 
clothed with fine and seanty pale hairs, which are more conspicuous 
and arranged in rows behind ; thorax, except on a smooth central line 
at base, dull, with transverse granulations which are distinct at apex and 
become feebler towards base, which is granulately sculptured and not 
punctured; elytra rather shining, parallel-sided, with distinct and 
rather strongly and closely punctured striz, interstices with much less 
close rows of punctures, rather abruptly rounded and scarcely visibly 
reflexed, and without tubercles, at apex; the species, which is about 
equal to P. bidentatus in its average size, is, compared with 7. bicolor, 
less hairy, narrower, with the thorax behind not so shining and granu- 
late instead of punctured (the latter character, however, being somewhat 
hard to distinguish), and with the elytra not nearly so evidently 
flattened behind at apex. IL. 23-3? mm. 
Under bark of decayed beech trees; rare; first taken by Mr. Morley in beech 
trees lying on the ground in a wood near Prestwich, Manchester, in February, 1866 ; 
Weybridge, Surrey, and Yardley, near Birmingham (Blatch); Drinkwater 
Park, Manchester (Reston) ; Agecroft, near Manchester, and Wilmslow, Cheshire 
(Chappell). 
D. coryli, Perris (Lymantor sepicola? Lowendal). Elongate, 
narrow, cylindrical, shining, pitchy-black, pitchy-brown or brownish 
red, with the thorax often lighter in front, antennz and legs reddish 
yellow ; upper surface with rather scanty pubescence ; thorax consider. 
ably longer than broad, closely granulate and dull in front, rather 
diffusely and distinctly punctured behind with an impunctate central 
line, sides straight or almost straight ; elytra obliquely reflexed at apex, 
somewhat impressed near suture behind, without distinct striae but with 
rows of moderately strong punctures which are often more or less irregu- 
lar. L, 12-2 mm. 
In dead branches and twigs of hazel and hornbeam; rare; Darenth (Kent), and 
Ashtead (Surrey) (Champion) ; Darenth (Sharp and Rye); Darenth, Birch Wood 
and Weybridge (Power) ; Kidderminster (Blatch). 
TAPHRORYCHUS, Hichhoff. 
This genus may be distinguished from Dryocwtes by the simple 
orbicular club of the antenne, which has curved transverse sutures on 
