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XI. Notes on the Genus Schematiza (Phytophaga, Galle- 
rucide), with Descriptions of New Species. By the 
Rev. Hamer Crark, M.A., F.LS., V.-P. Ent. Soc. 
{Read September Sth, 1864. ] 
Tue South American genus Schematiza contains within it 
species that vary considerably among each other in form and 
sculpture. Some (and these the most striking in size and beauty) 
have deeply costate elytra; others have their elytra perfectly 
plain: some are broadly dilated towards their apex ; others have 
the sides of their elytra parallel. The species are for the most 
part coloured with irregular flavous bands, and may be at once 
separated from other Gallerucide by their sufficiently short and 
broadly dilated antennz: this dilatation is not irregular or con- 
fined to one or two articulations, but gradually progressive from 
the first and also from the apical joints towards the middle. In 
form the species are more or less elongate and depressed ; not 
subcylindrical, as in Adimonia and Galleruca. The following 
diagnosis will suffice to point out the limits of the genus. 
ScuematizA (Chev.) 
Corporis forma vel oblongo-ovalis (versus apicem plus minus 
dilatata), vel parallela; depressa, pube tenuissima satis vestita. 
Palpi maxillares articulo ultimo dilatato, et ad apicem acu- 
minato, plerumque ut in genere Adimonia, Antenne robuste ; 
in quibusdam speciebus versus apicem subproducte, sed 
semper ad medium dilatate ; hac dilatatione ab articulo basali 
etiamque ab 11™° vel 10™° sensim et paulatim aucta ; articuli 
compressi aliquando, et aliquando subcylindrici; art. 3ts 
longitudine primum (ad apicem dilatatum) superat. Caput 
penitus verticale, vix porrectum. Thorax transversus, 
depressus, plerumque marginibus subelevatis, ita ut discus 
totus excavatus videtur, Llytra plerumque costata (costis 
latis etiamque profundis, sed haud apicem attingentibus), 
aliquando autem plana et sublevigata. Pedes robusti, 
unguiculi vel appendiculati (ut in S. Lycotdes) vel undique 
bifidi, ita ut quadri-unguiculate species apparent (ut in 
S. Hispiformi, et presertim in S. flavofasciatd). 
