84 SERRICORNIA. [ Cardiophorus. 
prosternal process is truncate behind, and the anterior coxal cavities 
are rather narrowly open. 
The larva of Cardiophorus asellus is described and figured by Schiédte (Part v. 
p. 494, fig. iv. 1-10) ; it is very long, slender and filiform, and is chiefly remarkable 
for the very great proportional length of the abdomen, which is due to the fact that 
the abdominal segments, which are transverse and much broader than the thoracic 
sexments, are separated by retractile membranous joints, the space occupied by these 
between each segment being longer than the segment ; the ninth abdominal segment 
is narrow, with a tuft of hairs at apex and a reflexed hook on each side; the head is 
oblong with bifurecate mandibles, scarcely narrower than the thoracic segments, which 
are very small in comparison with the rest of the body ; the legs are moderately long 
and plainly visible from above; the colour is white, with the thoracic segments 
flavescent, the head ferruginous, and the mandibles fuscous. 
There are four species, which have been reputed as British, but 
three of these are doubtfully indigenous, and require further contirma- 
tion before they can be received with any certainty. 
C. asellus, Er. (equiseti, Steph., mee Herbst.). Of a greyish-black 
colour, somewhat thickly clothed with rather long recumbent greyish 
pubescence, thorax moderately shining, elytra dull; form somewhat 
resembling that of Agriotes sputator and its allies; head thickly 
punctured, with vertex impressed, antenne black, gradually narrowed 
to apex; thorax very convex, with sides rounded, thickly and very 
finely punctured, posterior angles short and blunt; scutellum large, 
cordiform, with a deep impression; elytra somewnat depressed and 
uneven on dise, subparallel until posterior third and thence narrowed to 
apex, with distinct punctured striz, interstices very thickly punctured, 
dull ; legs black, knees and tarsi lighter, claws simple. L. 6-8 mm. 
Sandy places; at roots of grass and by sweeping herbage; very local and, as a 
rule, rare; occasionally, however, it has been taken in some numbers, Hsher, 
Faversham, Frensham, Woking, Chobham, Bireh Wood, Darenth Wood; Wey- 
mouth and Portland ; Chesil Beach, common, May 1886 (J. J. Walker) ; Glanvilles 
Wootton ; Bristol; Scotland, Edinburgh (Stephens); the latter record may have 
been in error, as it has not since occurred in Scotland or in any district in the 
Midlands or North of England. 
(C. ruficollis, Er. Shining black, indistinetly clothed with greyish 
pubescence, upper surface of thorax red, with the anterior portion 
black, under surface of the same red with the anterior edge and a 
longitudinal streak, black; head finely punctured ; thorax as long as 
broad, not very convex, thickly and finely punctured ; elytra broader 
than thorax with strong punctured striz, interstices somewhat convex, 
punctured and transversely wrinkled, upper surface black or bluish- 
black, under surface black ; legs black, tarsi more or less brownish. 
L. 55 mm. 
tee rded by Stephens from the neighbourhood of London, and also as having been 
found on the oak in Norfolk. 
C. thoracicus. Er. Black, very shining, with bright red thorax, 
