Athous. | SERRICORNIA. Se 
Male with the antenne longer and the thorax oblong; in the female 
the antenne are shorter and the thorax quadrate. 
By beating and sweeping ; in woods, &c.; as a rule not very abundant, but rather 
common and generally distributed throughout the kingdom as far north as the 
Moray district of Scotland. - 
A. undulatus, De G. (érifasciatus, Herbst.; v. bifasciatus, Gyll.). 
The most conspicuous of our species, and one of the rarest of our indi- 
genous Coleoptera; elongate, subparallel, elytra somewhat depressed 
on dise, head and thorax dull black, elytra brown with very distinct 
waved bands of greyish pubescence ; the colour, however, is somewhat 
variable, the basal part of the elytra being sometimes considerably 
lighter than the apical portion, and more or less rufous; head thickly 
punctured, forehead scarcely impressed, antenne black, moderately 
long, serrate, with the second joint very small, and the apex of last 
joint contracted and conical ; thorax longer than broad, rather convex, 
narrowed in front, and strongly sinuate before posterior angles which 
are much produced and divaricate, upper surface very thickly and 
rugosely punctured, with traces of a smooth central line in centre or 
channelled; elytra with distinct punctured striw, interstices finely 
punctured ; legs black, with claws reddish. L. 12-15 mm. 
Male with the antennz considerably longer than in female ; according 
to Thomson the elytra of the male have the base and a waved central 
band clothed with thick greyish pubescence, whereas in the female 
they are entirely pubescent, with two wavy denuded bands, one before 
and the other a little behind middle; in a female specimen, however, 
which I have before me, there are three plain denuded bands on the 
elytra. 
Very rare; taken in small numbers by Turner at Rannoch, Tay district, Scotland ; 
it appears to be a highland or mountain species. ‘ 
A. longicellis, Ol. (2 crassicollis, Lac.). Elongate, dull, clothed 
with greyish pubescence; head and thorax very thickly punctured, 
black, with the sides and posterior angles of the latter often more or 
less yellowish-brown ; elytra yellowish-brown, with suture and side 
margins more or less distinctly darker, sometimes unicolorous, with 
punctured striz, interstices finely and more or less rugosely punctured ; 
under-side dark, with abdomen lighter, but variable ; legs testaceous, 
with femora often infuscate; the thorax in both sexes is more or less 
distinctly channelled ; this is often used as a character to distinguish it 
from several allied species, but is not dependable, as the central thoracic 
channel is often traceable in certain specimens belonging to species that 
are usually regarded as not possessing it. L. 8-9 mm. 
Male very different from female, with the body longer, more narrow 
and parallel and more depressed, the thorax narrow and rectangular, 
the antenne very long, and the elytra more parallel-sided, with the 
strize and punctuation of interstices slightly stronger. 
H 2 
