552 Div. 3. ARTICULATA.— INSECTA. Class 3. 



The tirst of iliese genera,— • 



CRYPTOCEPHAH'S, — 



Is composed of Chrysomelinae in wliicli the head is iiiseitt-d vertically iiito a sivoUen thorax hke a hood, so that 

 the body, ffeiierally in the form of a short cylinder, or nearly ovoid, and nar?-owed in front, appears fioiii above to 

 be truncated and deprived of a head. Tlie antenna' in some are more or less serrated or iiectiiiated ; in others 

 they are iouif and niifurni. The last jiiini of the palpi is always ovoid. 



In some the antennjc are slmrt, peclinated, i r seiiateil atier the lOiirth or tifilijoint. 



Clijthra, Fabr., has the outer niar^in of the elytra slraijfht, or with init a sijjlit notch ; the posterior ancles of the 

 thorax are rounded and not arched.-and the anterior are not intle.\ed oeneaih. 'llie body is always in form of a 

 short cylinder; the autennK are always free; the eyes enlire, or scarcely eniarjjinate. The males have the head 

 peneially larne, wiih the niainiiiilis larne auii porrecled, and the ton -lefts ionjf. C (jiiiuliipunciata, Linn., [a 

 common Ur t.»';i specioj 11;^ larva lives in a i cMiiiciuns kinii it ti.be, which it beais about wiih it. 



The fol.o.viiur uiiier in iavinjf the ei\tia u.uch dila ed e.\ternall> at ibe base, with a deep milch 'I'lie posterior 

 angles of the thorax are acute and arched, and the a.itonor are greatly infle-xed. The eyes are often noiched. 

 Thesi" are peculiar ti> the Ni'« Woi Id. 



Chlamiix, Knoch., has the body slmil, cyliudric, or cubic, and tlie surface of the body is very unequal. [See the 

 nionoirraphs of King and Ko.lar.] 



Lumprosiiiiia, Kirny, has tlie body "lubular [and very stiiooth]. 



In others the aiiteiiiia; aie evidently longer than the ht-ad and thorax, j-imple, filiform, or thickened to the tips. 



Crtiptucephaliix, Ijeolfr., has the b dy c\ lindric ; the thorax as broad as the abdomen, and the anteniue and pa pi 

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



t7(orff(;H4-, Kirby, has the antenna' terminated by three large joints. C. Sheppardi, [a small llritish species. 

 This genus is more allied to Antliribits and Bruc/mx.] 



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

 third), and 



Eiimolpits, Klug (with the mandibles of ordinary size, and the second joint of the antennae shorter than the third), 

 differ in having the body narrowed in front and nearly ovoid. 



Eumolpus Vitix, a small continental species, does much injury to the vine. This genus passes, by means of 

 Colaspis, in a very gradual manner, to the genus 



Chuysomel.'^, — 

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

 antennae 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 the palpi iwintcd at the tips, approach Eumolpus, and 

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



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



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



In the following Chrysomelinae of the same tribe tlie antennas are shorter, and composed of reversed-conical 

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

 is very short, and scarcely distinct. 



Some have the maxillary palpi thick, and truiicateil 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. 



Phyllocharis, Dalm., has the mesosternum not pointed. [Exotic species], peculiar to New Holland and Java. 



Doryphora, Ulig., has the mesosternum pointed like a horn. Composed of South American species. 



Cyrtonus, 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. 



Apiim<ea, Leach, is allied to Doryphora, but has the antenna" of the male 8-jointed, the last two forming a club. 



[Trochiiloiiotit, Westw., is also globose. Type, Chrysomela hadia. Germ. South America.] 



Paropsis,i)\\w. (yot(iclc<i,'^\a.y»\\.), is peculiar to New Holland, and is distinct by having the last joint of the 

 maxillary palpi hatchet-shaped. [See the monograph on this genus, published by Marsham in the Transactions of 

 the Litintcan 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 World, and particularly Europe. 



Timarctia, Sleg., is composed of apterous species, having the body gibbose ; the antcnns moniliform, especially 

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

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

 ting a yellow rtuid from the joints of their feet when disturbed. They especially inhabit the south of Europe, and 

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

 crescent -shape, and which are the largest of the tribe, is the (Tenehrio) lieviyatm-, Linn, [a common ISritish species], 

 from fiiur to ei.clit lines long; black, with the thorax and elytra smooth, finely punctured, and the antenna and 

 feet violet-coloured. Its larva is green or violet-coloured, very swollen, with the extremity yellow. It is found 

 on the L;idy's bed straw. It undergoes its traisfoiinations in the earth. 



Chrysomela proper, comprises those spi ( ies of Olivier which are furnished with wings, and in which the maxil> 

 lary palpi, according to the subdivif ;ons established above, have the last joint as large us or larger than the pre- 

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



