206 SERRICORNIA. [ Cis. 
B. Elytra with larger and smaller punc- 
tures, the larger being arranged in 
rows towards base, 
a. Thorax with side margins broad. . C. micawns, F. 
b. Thorax with side margins narrow . C. uispipus, Payk. 
C. Elytra uniformly and irregularly punc- 
tured, with the punctures not arranged 
in rows towards base. 
a. Head and thorax in male without 
plates. 
a*, Elytra strongly punctured . . C. punctuLAtus, Gy/ll, 
b*, Elytra comparatively finely or 
very finely punctured. 
at. Posterior angles of thorax 
almost right angles . . . . C, PYemxuS, Marsh, 
bt. Posterior angles of thorax 
rounded. 
at. Elytra more shiny, less 
closely punctured. 
*, Form broader and more 
convex; thorax less con- 
tracted infront . . . . C. Festivus, Panz. 
**, Form narrower and more 
depressed; thorax more 
contracted in front . . . C. vestitTus, Well. 
bt. Elytra duller, more closely 
UAL G4 6 bo ac 
b. Clypeus and anterior margin of 
thorax each furnished in male with 
a broad oblong projecting plate . . C. BILAMELLATUS, Wood. 
C. Fuscatus, Mell. 
C. boleti, Scop. (rugzlosus, Mell.). The largest of our species ; 
oblong, very convex, of a dark pitchy brown colour, but varying from 
this to ferruginous, immature examples being sometimes quite light; 
upper surface clothed with very fine, almost scale-like, greyish-yellow 
pubescence ; thorax as broad as long, at least as broad as elytra, rather 
strongly margined at sides, but without or with scarcely a trace of a 
margin at base, sides slightly rounded, very finely and closely punctured, 
dise uneven and with more or less distinct traces of a raised central line ; 
elytra very finely and thickly and more or less rugosely punctured with 
large coarse punctures, which are arranged in more or less irregular rows ; 
antenne and legs ferruginous, the former with club sometimes darker. 
L. 3-4 mm. 
Male with the forehead transversely impressed in middle, and the 
clypeus emarginate at apex in middle, and furnished on each side with 
a blunt tooth; thorax slightly broader than elytra. 
Female with the forehead almost even, and the clypeus simple ; 
thorax not broader than elytra. 
In boleti, especially Polypori, on the bark of rotten trees; also in damp fungoid 
wood ; generally distributed throughout the kingdom, and usually abundant. 
The Cis rugulosus of Melli¢é, which was introduced into our lists by 
