6 LAMELLICORNIA. [ Dorcus. 
or distinctly on disc, somewhat rugosely at sides; elytra a little more 
strongly punctured than in male, and the external spine on tibia more 
pronounced. L. 15-20 mm. 
In rotten wood of ash, elm, &c. ; often found on palings and sometimes in cellars and 
stables ; London district, rather common and generally distributed; Kent ; Glanvilles 
Wootton ; New Forest ; Devon ; Swansea; Bath; Gloucester; Bewdley ; Birmingham 
district; Shrewsbury; Repton; Sherwood Forest; Lincoln ; Chureh Stretton, 
Cheshire ; it appears to cease further north in England, and has not occurred in 
Scotland; it may, however, be regarded as of general occurrence from the Midlands 
southwards; one specimen has occurred at Armagh in Ireland (Rev. W. F. Johnson). 
SINODENDRON, Fabricius. 
This genus contains three or four species, one from Europe and the 
others from North America; they are by Thomson and others raised to 
the position of a distinct family, Sinodendride ; they are easily dis- 
tinguished from the members of the two preceding genera by having the 
eyes entire, the posterior femora not extending beyond the margin of the 
elytra, and the elytra more or less distinctly striate. The larva is 
beautifully figured by Schiddte (De Metamorphosi Eleutheratorum, 
Part viii. Fig. xviii. 1); it does not differ materially from the ordinary 
Lucanide form ; the head is rather small, and the front part of the body 
considerably thicker than the hinder part, which appears to be less 
curled up towards the abdomen than is usually the case ; it ives in wood 
of ash, willow, &c., and sometimes does considerable damage, although 
it appears chiefly to attack trees that are either decayed or about to 
decay, and therefore its ravages are more apparent than real. 
S. cylindricum, L. (juvenile, Muls.). Oblong, cylindrical, parallel- 
sided, very convex, shining black, very strongly sculptured ; head small, 
strongly punctured, with a rather long recurved horn in the male, which 
is furnished behind towards apex with long yellowish hairs; in the 
female the horn is reduced toa larger or smaller tubercle, and is glabrous ; 
thorax strongly depressed in front, very strongly punctured behind 
depression, more closely in female than in male, with smooth central 
line ; in the latter sex the anterior angles of the thorax are very promi- 
nent, and the anterior depression is furnished with large and very shallow 
punctures ; its posterior margin is strongly raised and tridentate, the 
central tooth being large and blunt, and almost taking the form of a 
short horn; in the female the anterior angles are not prominent, and the 
depression with its margins and teeth are evident but much less 
apparent, the latter being merely indicated by blunt prominences ; 
scutellum smooth ; elytra very strongly punctured and more or less dis- 
tinctly striated, with a row of smaller punctures on each side of suture ; 
antenne ferruginous or pitchy red ; legs black, with tarsi lighter, strongly 
spinose externally. L. 8-12 mm. 
In rotten ash, beech, willow, &e.; generally distributed throughout England and 
