COLEOPTERA. 
247 
I. Elytra soldered; prothorax dilated; aiitennee of 10, club of 2 joints. 
J\iet(yphthalnm8^i Mots. 
II. Elytra free. 
A. Club of antennae of 3 joints. 
1. Surface smooth, or scarcely pubescent. 
a. Elytra convex, attenuated behind ; prothorax quadrangular, rather 
narrow, with longitudinal keels .... Lathridius (Herbst). 
h. Elytra depressed ; prothorax without raised keels. 
* Prothorax in front without salient lobes. 
PermidiuSj g. n. 
t Prothorax in front with the angles lobed. 
IsidmSf g. n« 
c. Elytra elliptical and somewhat convex ; prothorax elongated ftnd 
constricted behind AridiiiSy g. n. 
2. Surface strongly pubescent. 
a. Prothorax more or less angular at the sides, with a transverse 
impression near the base Melanophthalma^ g. n. 
h. Prothorax rounded at the sides, which are usually crehulated. 
^ Joints 0 and 10 of antennre transverse. 
Migneauxia (Duval). 
t Joints 9 and 10 of antennee elongated. 
Corticaria (Marsh.). 
B. Club of antennse of 2 joints. 
1. Surface nearly smooth ; striae of elytra very fine. 
Cortilena, g. n. 
2. Surface smooth ; elytra with 1 stria close to the suture. 
a. Antennae 10-jointed in (J, 11-jointed in $. 
2'ocalkm, g. n. 
h Antennae of 11 joints in both sexes . . Calyptohium (Villa). 
c. Antennae 9-jointed in rf, 10-jointed in $. 
Holoparamecus (Curt.). 
Motschulsky (1. c. pi. 6) figures Lathridius lardarius (De G.), fig. 1 
(thorax); antenna of Corticaria, fig. 10, Myrmecoxenus vaporariorum, fig. 11, 
Frauenfeld describes the larva and pupa of Mycetophagus quadripustiilatus 
(Linn.), found by him in Boletus SM^?/mreM5,Verh. zool.-bot. Ges. in Wien, xvii. 
p. 781. 
Loberus impressus (Lee.) and Litargus 4:-spilotus (Lee.) are referred to by 
Walsh as inquilines of Willow-galls. Proc. Ent. Soc. Phil. vi. p. 266. 
Lathridius carhonarius (Chevr.) is recorded as British by Bye, Ent. Ann. 
1868, p. 78. 
Diploccelus fagi (Gu6r.) is recorded as British by Rye, Ent. Ann. 1868, 
p. 66. 
iVew genera \ — 
Cortilena, g. n., Motschulsky, Bull. Soc. Nat. Mosc. xl. 1. p. 96. (See table 
above.) Sp. Corticaria picta (Lee.), C.pallens (Motsch.), C, simplex (Lee.) ; 
Cortilena mgripennis, sp. n., Motsch. ?. c. p. 96, Mobile. 
Tocalium, g. n., Motschulsky, 1. c. p. 97. (See table above.) Sp. T. orientale 
and T. externum, sp.n., Motsch. 1. c. p. 97, East Indies. 
s 2 
Including Bonvoidoiria (J. Duval). 
