. The American entomologist. Entomology. species, just now referred to as beiiij;: almost the exact counterpart in coloring of our Clubbed Tortoise-beetle, occurred in tlie Botanic Garden at Calcutta upon a convolvulus; but to what genus this insect belongs, authors do not in- form us. The larva? of all the Tortoise-beetles, belong- ing to the genera with the body greatly flat- tened (CdsKiila and Coptocycla), always have the prickles that project from their bo- dies sprangled or bar- bed, as will be re- marked from our fig- ures 174, 177, 179 iind 180. In the genus " " ( Chclymorpha
. The American entomologist. Entomology. species, just now referred to as beiiij;: almost the exact counterpart in coloring of our Clubbed Tortoise-beetle, occurred in tlie Botanic Garden at Calcutta upon a convolvulus; but to what genus this insect belongs, authors do not in- form us. The larva? of all the Tortoise-beetles, belong- ing to the genera with the body greatly flat- tened (CdsKiila and Coptocycla), always have the prickles that project from their bo- dies sprangled or bar- bed, as will be re- marked from our fig- ures 174, 177, 179 iind 180. In the genus " " ( Chclymorpha ), to ''"i"'-'*-!'') i^ mui which belongs a brick-red insect with black spots (C7(. cribraria, Fabr., Fig. 2 a, pupa; b beetle) found upon Milkweed (Asciepias), and which has (he body greatly rounded above with scarcely any lateral flange, the larva, as observed by Dr. Packard, has the prickles smooth and not sprangling. Tn the gcimsPAys- oHo^tt, to which belongs a new species tigured licn'widi, the Five-dotted Tortoisp-ln'cllc (I'll. >linn<iii,'pimriata.\\.^\^., [!,;„. ... , I'ig. ?'!, b), and which is intermediate in Ibrni between the last named genus {('helymorpha), and those with the body greatly flattened {Cas- sida, Coptocycla, De- loyala), the prickles of " " the larva arc also Coiors-(i) smooth, as may be seen by referi-ing (o Figure 3 a. Thus it results that structura] differ- ences in the perfect beetle arc accompanied by corresponding struclural (lifrciciici's in thi' larva.* As a general rule, to which as usual IIhtc arc. tural differences in this group of plant-feeding insects are acctompanied by structural differences in the groups of plants upon which they ordi- narily occur. We have seen that certain genera (drissida and Coptocycla) are peculiarly at- tached to the Convolndns Family; that another genus {Beloyala) haunts the Solanum Family; and that a tourlh genus {<'hehimorpha) is gen- erally Ibu
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
