^* In the paper “On the Classification,” &c., Mr. Scudder supports his argument for degradation of Papilio by this discorery of M. Guenee. Mr. Wallace had claimed, and properly, that the possession of such a peculiar structure as the scent organ of Papilio larva, with tentacle, muscular apparatus, &c., for frightening away its enemies, is a mark of high development, and that its presence in one groap and absence in every other is a proof of a very ancient origin and of very long-continued modificaiion, Nat. Select, Am. Ed., 135. Mr. Scudder thus disposes of the whole matter: “Extensive fleshy organs do occur in other groups. Guenee discovered them on the abdominal segments of certain blues,” &c. … “yet nobody on that account claims for them a high rank.”

^* Mr. Scudder, Can. Ent., viii.,64, says: “Mr. Abbot, in Georgia, years ago raised Pseudargiolus (or what he called argiolus) in March from caterpillars which went into chrysalis the last of April of the prececiing year.” I do not know where Mr. Scudder learned this, for it is not so stated in the Insects of Georgia. The text says that the caterpillar was found, and “the first change (i. e., to chrysalis) took place on the 16th of June and the fly appeared nine days afterward,”