THE L0NG1C0KNIA. 
197 
dish species, with large eyes, and very long antennae, 
is of considerable rarity : Gracilia pygmsea, our other 
representative, duller and darker, occurs not unfre- 
quently on old wood-work, twigs, &c. 
The LEPTURiDiE are closely allied to the Ceramby- 
cidas, in that they have the prosternum not or scarcely 
produced behind the anterior coxae, .and the labrum 
free and distinct ; they differ in having the clypeus 
longer, often subquadrate, the anterior coxae conical 
and strongly prominent, and the eyes (in our genera) 
always almost entire or feebly emarginate ; their 
head is bent downwards, but not abruptly so, and 
with a distiuct neck ; their thorax is narrowed in 
front, and their elytra are more or less contracted 
behind. 
As compared with their allies’, they are more .active 
and diurnal in their habits, and, as a general rule, 
smaller in size, and with shorter antennae. 
They form two tribes, the Molorchina and Lep- 
turina ; in the former of which the elytra are 
abbreviated, with the wings exserted ; the femora 
clavate; the front coxae approximated; and the 
thorax cylindrical, with a small lateral tubercle. 
Wo possess one genus, Molorchus, containing two 
species; one of which, M. umbellatarum (Plate XIII., 
Fig. 6), — sometimes found in flowers, but much more 
readily obtained by beating bundles of dead twigs in 
hedges, — is not uncommon near London. Its small 
size, narrow appearance, long thin legs and antenna), 
short wing-cases and exposed wings, easily distinguish 
it from any other insect. 
The Lepturina have the front coxte much projecting, 
and usually wide apart ; the antennae rarely longer 
