(C288 S 
III. Descriptions of new genera and species of Phyto- 
phaga. By Josrnry S. Baty, F.L.S. 
[Read 15th March, 1875.] 
Fam. CHRYSOMELIDZE. 
Genus EUMELA. 
Corpus oblongo-ovatum, valde convexum. Caput de- 
clive ; antennis corporis dimidio fere sequalibus, modice 
robustis, extrorsum paullo incrassatis, leviter compressis ; 
palpis maxillaribus articulo ultimo apice truncato, penul- 
timo breviori, illo paullo angustiori. Thorax transversus, 
apice excavatus, lateribus fere rectis, non incrassatis. 
Elytra thorace multo latiora, valde convexa, confuse sub- 
striatim punctata; limbo inflexo obliquo. Pedes robusti ; 
tarsis articulo tertio integro, unguiculis inermibus. Pro- 
sternum angustum ; acetabulis anticis apertis. Mesoster- 
num triangulare. Metasternum antice utrinque margi- 
natum, processu antico apice immarginato. 
Type, Chrysomela cyanicollis, Hope. India. 
Eumela somewhat resembles Spherolina in general 
form, but is more oblong and less convex, and differs also 
in the length and shape of the antennz; from Chrysomela 
it is separated by the peculiar form of the thorax, and by 
the immarginate apex of the metasternal process. 
Genus MESOPLATYS. 
Corpus anguste oblongum, parallelum, modice con- 
vexum. Caput modice exsertum, declive ; antennis cor- 
poris dimidio brevioribus, subfiliformibus, articulis quinque 
ultimis leviter incrassatis ; palporum maxillarium articulo 
ultimo conico, subacuto. Thorax transversus, lateribus 
non incrassatis. lytra thorace vix latiora, parallela, 
confuse punctata. LPedes robusti, simplices ; ¢ibé’s quad- 
rangulatis, lateribus planis. Prosternum angustum, postice 
ad mesosternum vix extensum; acetabulis anticis late 
apertis. Mesosternum sat magnum, horizontale, planum, 
margine antico elevato, postice late truncato. Metaster- 
num anguste marginatum, utrinque linea obliqua impres- 
TRANS. ENT. sOC. 1875.—PART I. (MAY.) 
