60 HETEROMERA. | Oncomera. 
texture and are divaricate at apex; legs long, femora of male strongly 
thickened, 
©. femorata, F. (2 calopoides, Germ.). Livid-brown, rather pale, 
with the forehead, sides of thorax, base of abdomen and a ring before 
apex of femora dark brown or black-brown ; head considerably produced 
in front, antenne very long and slender; thorax longer than broad, 
somewhat narrowed behind, closely puuctured except on centre of dise, 
testaceous with the sides broadly black, the black colour often spreading 
over the greater part of the disc; scutellum light; elytra long, sub- 
parallel, divaricate at apex, closely punctured, with three or four raised 
lines on each; legs long, testaceous with the femora more or less 
infuscate. L. 12-16 mm. 
Male with the posterior femora much thickened and the posterior 
tibie strongly curved. 
On ivy bloom and occasionally on sallows; found both in spring and autumn ; 
local, but not rare in many districts; it is nocturnal in its habits, and sometimes 
comes to sugar placed on trees to attract moths; Ripley (Surrey), Mickleham, Darenth 
Wood, Reigate, Tunbridge Wells, Westerham, Chatham; Oxford; Reading; Dover ; 
Hastings; Arundel; Shipley, near Horsham; Lewes; Isle of Wight; Glanvilles 
Wootton; Brixham; Exeter; Bath; Leominster; it has not been recorded from 
further north. 
NACERDES, Schmidt. 
This isa moderately large and very widely distributed genus, its range 
extending from Siberia to Madagascar and Brazil; the species, however, 
are chiefly found in temperate climates, and only two or three have been 
described from the New World ; only one of the fifteen European species 
is found in Britain; it is a long reddish insect with a black tip to the 
elytra, and very strongly resembles certain species of Telephorus ; it may 
be known by the 12jointed antenne of the male; the eyes are 
oblique and kidney-shaped; the maxillary palpi have the last joint 
oblong, obliquely truncate at apex, and about as long as the penultimate; 
the thorax is slightly narrowed behind, and is much narrower at base 
than elytra, which are long and subparallel ; the posterior femora of the 
male are not thickened. 
The larva of NV. melanura is described and figured in two positions (viewed from 
above and sideways) by Schiddte (xi. p. 540, t. xvi. 1 and 2); it is seven or eight 
times as long as broad, and is much narrower in front than behind, to aslight extent 
resembling some of the larve of the Buprestidze ; the hcad and legs alone are cor- 
neous, and the colour is white with the last-mentioned parts yellowish, and the clypeus, 
mandibles and palpi pale ferruginous ; tne head is large, being nearly as broad as the 
prothorax, which together with the next four segments is uneven and furnished with 
a hump or knob on the centre of the dorsal surface; the legs are moderately long ; 
the remaining abdominal segments are simple and of different lengths, the last being 
narrower and without cerci; all the segments are setoseat the sides; the ‘‘preterga” 
and ‘‘ posterga,’’ or the membranes joining the segments, are very evident; the larva 
lives in dead wood, especially oak, and mines galleries 
