INSECTA. 471 
Family XLVU. Cyclica. Joints of tarsi as in the preceding 
family. Antenne filiform, or somewhat thicker towards the 
end only, shorter than body. Maxille without horny tooth, with 
external division palpiform, often biarticulate. Ligula thick, sub- 
quadrate or oval, entire or little emarginate. 
Circulars. They are coleopterous insects of small or only moderate 
size, which feed on plants, especially on leaves. The species here 
belonging were collected by Lruynaus under the genera. Cassida, 
Chrysomela and Hispa. 
Phalanx I. Chrysomela (Chrysomelide Lracn). Antenne re- 
mote at the base, inserted before the eyes. \ 
Chrysomela L. (exclusive of many species), Latr. (Cuv. BR. 
Ani.). Head not covered by thorax, exsert. 
A. Antenne short, moniliform, thicker towards the extremity. 
Sub-genera: Prasocuris Latr. (Helodes Payk., Fasr.), Phoedon 
Mucerte, Chrysomela L. (in part), Timarcha Muc. (apterous species), 
Paropsis Outy., Doryphora Tue. Trochalonota Wxstw., Phyllo- 
charis Daum., &e. 
Comp. HerricH-ScH#FFER, A useinandersetzung der Gattung Chrysomela, 
Deuischl. Ins. Heft 157. 
Sp. Chrysomela Phellandrti L., Helodes phellandrii Payx., Fasr., DUMERIL, 
Cons. gén. s. l. Ins. Pl. 39, fig. 4, Panzur, Deutschl. Ins. Heft 83, Tab. 9; 
—Chrysomela populi L., PanzER, Deutschl. Ins. Heft too, Tab. 5, RatzE- 
BuRG, Forst-Ins. 1. Tab, xx. fig. 4; Ouvrage posth. de P. Lyonnt, Pl. 12, 
figs. 36—42; this little beetle, 5’” long, is blue-black, with red-brown or 
orange-coloured shield-covers, which have a black spot at the point; the 
larvee eat the parenchyme of the leaves of poplars, so that the vascular net 
is left like a skeleton leaf; see Rarzesure, 1. 1. Tab. xxt. fig. 6 ;—Chryso- 
mela fastuosa L., PANzER, Deutschl. Ins, Heft 44, Tab. 12, &c. 
B, Antenne filiform, longer than half the body. 
Sub-genera: Podontia Datm., Colaspis Farr. 
Note.—Dr La Portz, Mém. sur les divisions du genre Colaspis, Revue 
entomol. par SILBERMANN, pp. 18—25, proposed several sub-genera. 
Does genus Megamerus Mac Leay belong here? Habitus of Prionus, 
thorax oblongo-quadrate. Comp. Boispuvau in Guérin, Magas. de Zool. 
1835, Ins. Pl. 124. 
Cryptocephalus GEOFFR. (in part), Fasr. Head vertical, almost 
entirely intruded within the gibbous thorax. 
Lo 
