552 LNSECTA. 



The first of these genera, — 



Cryptockpi-ialus,— 

 *s composed of Clirysonu'liiia; in which the li cad is inserted vertically into a swollen thoi'ax like a liood, so that 

 the body, t^cncriilly in the form of a short cylinder, or nearly ovoid, and narrowed in front, appears fioni aljovo to 

 be truncated and depi'ived of a head. The antennae in some are more or less serrated or pectinated ; in others 

 they are lon;^ and filiform. The last joint of the palpi is always ovoid. 



In some the antenna: are short, pectinated, or seriated after the fourth or fifth joint. 



Cli/f/irtj, Fabr., lias the outer marD:in of the elytra straif^lit, or with but a slight notch ; the posterior anirles of the 

 thorax are rounded and not arched, and the anterior are not indexed beneath. The body is always in form of a 

 short cylinder ; tlie antenna.' are always free ; the eyes entire, or scarcely emarginate. The males have the head 

 generally large, ^vjth the mandibles large and porrected, and the fore-legs long. C. qiiadr/pu/irfn/a, Linn., [a 

 common Uritisli species]. Its larva lives in a coriaceous kind of tube, which it bears about with it. 



The following dill'er in having the elytra nuich dilated externally at the base, with a deep notch. The posterior 

 angles of the tliorax are acute and arched, and the anterior are greatly intiexed. The eyes are often notclieil. 

 These are peculiar to the New \\'orld. 



Chlamys, Knocb., has the bod>' short, cylindric, or cubic, and the surface of the body is very unequal, [^ee the 

 monographs of King and Kollar.] 



Lamprosoma, Kirby, has the body globular [and very smooth]. 



In others the antenna: are evidently long-er than the head and thoi'ax, simple, filiform, or thickened to the tips. 



Cft/ptoccphahis, GcolTr., has the body cylindric ; the thorax as broad as tlie abfiuiuen, and the antL-jjn;u and palpi 

 of equal thickness throughout. C. sericea, Linn, [a common British species. The genus is extremely numerous]. 



Choragus, Kirby, has the antenna terminated by three large joints. C. ^heppardi, [a small British species. 

 This genus is more allied to Anthribus and Bruchits.] 



Euryope, Dalm. (having the mandibles very strong, and the second joint of the antennae longer than the 

 third), and 



Eumolpu.s, King (with the mandibles of ordinary size, and the second joint of the antenna; shorter than the third), 

 differ in having the body narrowed in front and nearly o\oid. 



EumoJpus T'i7(A', a small continental species, does much inJLiry to the vine. This genus jiass-S, by means of 

 Colaspis, in a very gradual manner, to the genus 



CHnysoMi;LA, — 



In which the body is generally ovoid or oval; the head exposed, advanced, or slightly inclining forwards; the 

 antenna? simple, about half the length of the body, and often moniliform and slightly thickened to the tips. 



Some, having the body ovoid, or oval, and winged, and tlie palpi pointed at the tips, approach Eumolpus, and 

 are distinguished from all the following by the filiform antenna, longer than half the body. 



Colaspis, Fabr., has not the mesosternum pointed. [A very numerous exotic genus.] 



Podontiay Dalm., has the mesosternum produced into a short conical point. [Exotic insects.] 



In the following Chrysomelinffi of the same tribe the antennae are shorter, and composed of revcrsed-ccmical 

 joints, or more or less moniliform, and thickened to the tips ; the false joint, or appendage, at tlje end uf the last, 

 is very short, and scarcely distinct. 



Some have the maxillary palpi thick, and truncated at the tip. 



Amongst these some have the two terminal joints of the palpi united into a truncated mass, the last shorter 

 than the preceding, and either transverse or in the form of a short truncated cone. 



I'/n/Z/nc/iari'-, Iiahn., has the mesosternum not pointed. [Exotic species], peculiarto New Holland and Java. 



Dori/ji/njrri, Uiig'., has thi' mesosternum pointed like a horn. Composed of South American species. 



Cyrtoiius, Dalm., composed of two Spanish species, has no mesosternal point, but the joints of the antenna: are 

 longer, the body more globose, and the thorax more elevated transversely. 



Apamaa, Leach, is allied to Doryphora, but has the antenna: of the male 8-jointed, the last t\\o forming a club. 



[TrochaloHOta, Westw., is also globose. Type, t'hru.-.oiin'h' in'dia. Germ. South America.] 



ParopsiSfOyiy. {Not odea J 'Marsh.), is peculiar tn New Holland, anil is distinct by haviiiL; the l:i^t joint of the 

 maxillary palpi hatchet-shaped. [See tlie monograi>h on this genus, published by I\Iarsliam in the TniHuadion^ of 

 the Limiican Society of London.] 



In the two following subgenera the same joint, quite distinct from the preceding, and as large or larger than it, 

 is more or less semi-ovoid. These insects are widely distributed over the Old \Vorld, and particularly Europe. 



Timarcha, Meg., is composed of apterous species, having the body gibbose ; the antenna: moniliforn], especially 

 towards the base ; the elytra united together, and the tarsi very dilated, especially in the males. These insects 

 arc found on the ground in woods, upon turf, and low herbs at the sides of foot-paths, crawling slowly, and emit- 

 ting ayellow fiuid from the joints of their feet when disturbed. They especially inhabit the south of Europe, and 

 the northern countries of Africa. Amongst tho.^e which have the thorax narrowed behind, and nearly of a 

 crescent-shape, and which are the largest of the tribe, is the (Tenebrio) Iccviffafusyhiuxi. [a common British species], 

 from four to eight lines long; black, with the thorax and elytra smooth, finely puncim-ed, ami the antenna: and 

 feet violet-coloured. Its lar\a it. gi'een or violet-cohmiTd, \ery swollen, with the extremity yellow. U is found 

 on the Lady's bed-straw. It undergoes its transfornudiims in the earth. 



Chrysomela proper, comprises those species of Olivier w hich are furnished with wings, and in which the maxil- 

 lary palpi, according to the subdivisions established above, have the last joint as large as or larger than the pre- 

 ceding, of an ovoid-truncate or conic-reversed form. Such is 



