Mr. F. P. Pascoe on some new Genera of Curculionide. 415 
Thomson, very considerably modifying his synoptical arrangement 
contained in the first volume of the above work, now divides the 
Rhynchophora into two “ stirpes ’— Isotoma’’ and “‘ Anisotoma,” 
the first including the families Bruchide, Anthribide, Rhinoma- 
ceride, and Attelabide, the second, Apionide and Curculionide*. 
Among the genera described below are some of the most puzzling 
ones in my collection. It is very likely, therefore, that my views as 
to their affinities may be questioned. It should be recollected, how- 
ever, that scarcely more than 7000 species have been described, out 
of a number recently estimated by M. Jekel at about 30,000, and 
that a host of new types remain to be recognized. When this is 
done, many forms now isolated will cease to be so. Under any 
circumstances there will always be a certain latitude of opinion as 
to the importance to be attached to some characters in preference to 
others, as, indeed, we have just seen. Moreover, there is often a 
great individuality in the species of the Curculionids, even when 
belonging to the same genus, and an absence of any marked habit in 
many of the genera ; so that it is not until almost every organ is ex- 
amined in some cases that we are able to form an idea of the affinities 
of our insect. 
As my object is only to characterize new forms, I have contented 
myself with describing only one species of each genus, perhaps 
entering more fully into some of them hereafter. 
ATYCHORIA. 
Rostrum breve, incrassatum, supra bilobatum, apice profunde impressum, 
utrinque infra scrobem canaliculatum ; scrobe obliqua profunde curvata, 
oculum attingente. Ocul oblongi, valde depressi. Antenne breves ; 
scapo sensim incrassato ; funiculo 6-articulato, duobus basalibus ob- 
conicis, ceteris transversis ; clava breviter ovata. Prothorax subovatus, 
supra medio longitudinaliter sulcatus, lobis pone oculos productis, 
ciliatis. Scutellum non visum. Llytra subobovata, apicem versus pro- 
ducta, supra medio subplanata, utrinque carinato-angulata, humeris 
antice projectis. Pedes mediocres, postici paulo longiores ; femoribus 
vix incrassatis ; tzbzis teretibus, muticis ; tarsts subtus haud spongiosis, 
articulis tribus basalibus latitudine fere equalibus ; wngues distincti. 
Processus interfemoralis dilatatus, antice truncatus. 
Distinguished from Mythites (inter alia) by the form of the head 
and snout, the scrobe extending to the eye, and the antenne inserted 
near the end of the scrobe. JI owe my example to Mr. Odewahn. 
* The work has not arrived at Calandra and Cossonus, but they will probably 
form subfamilies. 
