142 
THE ORDER OF OOLEOPTERA. 
the Rhynchitides, more elongate and depressed, with unarmed tibia 1 , 
and free, usually bifid claws. 
The females roll up leaves and deposit their eggs singly in the cavi- 
ties thus made. The larva inhabits this cavity, and, when fully grown, 
leaves it and goes into the ground to transform. H. A. geuera : Attcla- 
bus, Linn., 5 species; Rhynchites, Herbst, 8; Rugnamptus, Sch., 2. 
Sub family APIONIDES. 
From a7r!«v, a .pear. Rostrum long, curved, cylindric or subulate; 
scrobes foreiform or pit-shaped. Antennae not elbowed. Size small or 
very small ; body pear-shaped, usually glabrous, and without wings. 
Habits of the larvae various. Some live iu seeds, especially those of the 
legumiuosae. Some form galls on the stems and leaves of plants. Some 
bore into the pith of certain plants and form a kind of cocoon of the 
detritus or gnawed particles. Finally, some inhabit knots which they 
form upon the roots of plants. Twenty-one N. A. species of the genus 
Apion , Herbst, have been described. 
I Fig. OS.) 
Sub-faiuily CONOTRACHELIDES. 
Meafaing having a cortical thorax. With this sub family we pass to 
the sub-section of Apomerides (Apostasimerides, Lacordaire,) a term 
derived from the Greek apo — apart , and 
meros — the thigh, in allusion to the greater 
or less separation from each other of the 
anterior coxa; ; whereas in all the preced- 
ing sub families these parts stand nearly 
or quite in contact. The present is a 
transitional group in this respect, the an- 
terior coxa; being but slightly separated. 
The rostrum is various as to length ; the 
scrobes turn rapidly beneath, and are con- 
conotbachelus nenuphab, Herbst:— fluent behind, being imperfectly visible on 
Plum and peacli curculio — a , larva,- b, . . . 
pupa; c, beetle; d, a plum, showing the the sides* Hie ocular lobes are advanced 
crescent slit made bv the female after 
depositing her egg— after Kiiey. so as to nearly or quite cover the eyes 
when the rostrum is bent down. Thighs usually with a tooth on the 
under side. Size small, or medium ; colors generally obscure. The 
sub-family is exclusively American. Fourteen K A. species have 
been described. The notorious Plum-curculio, Gonotrachclus nonuphar, 
Herbst (Fig. G8), may be taken as an example of the genus and its larvae. 
Sub family CRYPTOKHVXCHIDES. 
Rostrum varying iu length, usually somewhat enlarged both at base 
and tip (attenuated iu Aualcis.) Scrobes oblique. Antennae far from 
