Conopalpus. | HETEROMERA. 39 
as long as the fourth; the head is rather strongly but not suddenly and 
sharply constricted behind the eyes; the maxillary palpi have the last 
joint rather long and cultriform, and the last joint of the labial palpi is 
lunate ; the lateral margin of the thorax is broad and somewhat cle- 
vated ; the legs are long and slender, with the penultimate joint of the 
tarsi strongly bilobed. 
The Jarva and pupa of C. testacews are described and figured by Schiédte (xi. 
pp. 573, 587, t. xvii. figs. 16, 24); the larva is somewhat cylindrical, almost parallel, 
about eight times as long as broad, membranous, with the head, legs, and apex of the 
last segment of abdomen corneous; the general colour is whitish with the head yellow 
and the frontal margin narrowly pale ferruginous ; the segments are separated by deep 
incisions, and by the membranes called by Schiédte the “‘ praeterga” and “ postterga,”’ 
and bear three slightly raised warty setose prominences on each side ; the last segment 
of the abdomen is rather long, conical and produced into a truncate point, but there 
are no cerci; the pupa is not strongly narrowed behind, and bears moderately long 
“‘styli motorii”” which are furnished at apex with a long slender seta; the apex is 
terminated by two curved cerci ; the larva mines dead boughs of oak. 
Two species only appear to belong to this genus, of which one is 
found in Britain. 
C. testaceus, Ol. (9 flavicollis, Gyll.; Vigorsi, Steph., nec Muls.). 
Elongate, moderately eonvex, but depressed on disc, rather shining, 
’ testaceous, clothed with thin pale pubescence; head testaceous or dark 
with the front testaceous, distinctly punctured, eyes black, prominent, 
antenne long, 10-jointed, black with the three first joints yellowish- 
red ; thorax transverse, strongly narrowed in front, broadest behind 
middle and thence narrowed to hase, rather closely and distinctly 
punctured ; elytra subparallel, a little widened behind, obtusely rounded 
at apex, rather coarsely and in part almost subrugosely punctured ; legs 
long and slender, clear yellowish-red. L. 5-7 mm. 
V. Vigorsi, Steph. Black with the thorax, mouth, palpi, labrum 
and legs reddish-testaceous; antenn as in the type form. 
In dead boughs of trees, rotten wood, &c.; rare; Forest Hill, Shooter’s Hill, 
Coombe Wood, Ripley, Cobham, Richmond Park, Wimbledon ; Hertford; Windsor ; 
Lewes; Glanvilles Wootton; New Forest ; Bretby Park and Wood, near Repton, 
Burton-on-Trent ; Sherwood Forest ; Dunham Park, Manchester; the variety is very 
rare, and has occurred in Sherwood Forest and in Cumberland. 
The second European species, CO. brevicollis, Kr. (Vigorsi, Muls., nec 
Steph.), has not occurred in Britain, the dark variety of C. testaccus 
with red thorax having been mistaken for it; I am indebted to Herr 
Reitter for authentic specimens of the species, which is less than half the 
size of C. testaceus (being about the size and shape of Luperus flavipes), 
with longer antennx, of which the second and third joints are very short 
and equal in length, whereas in C. testuceus the third joint is rather 
long and about three times as long as the second ; the elytra are shining 
blne or bluish-black and the under-side is black, the thorax, base of 
antenne and legs being clear reddish-testaceous. 
