The distribution of the 16 genera and 376 species of the Dilleniaceous type is show in table D.

The differences observable in the percentages of this table and those obtained for the Solanum-Cassia type are doubtless to be accounted for in part by the small number of genera and species.

Eucosma Pergandeana, n. sp.— Expanse of wings, 16–20 mm. Head, palpi except a touch of fuscous on the outside, basal segment of the antennæ, whitel flagellum of antennæ fuscous, annulate with white. Thorax varying from white to pale straw colour.

Ground colour of fore wings white or pale cream colour; the outer half of the costa with about eight oblique fuscous lines, which are lost in the fuscous dorsal portion of the wing. The remaining portion of the wing is streaked longitudinally with fuscous, but so diffuse as to render the lines very indistinct, and the surface behind and beyond the cell is nearly unifromly pale grayish fuscous in some specimens; the ocelloid patch near the anal angle is represented by fragments of three fine blackish lines, more or less obliterated and broken by a short vertical bar of more of les distinct metallic pale gray scales; a similar one beyond follows the outer margin and joins the first below, but is broken near the middle of its course.

1. The larva and pupa of Uranotœnia Lowii, Theobald (Fig 23). Collected from a pool covered with Marsilia polycarpa, Hooker, near the bridge over the Rio Cobre Canal, Spanish Town, Jamaica. Found in association with Culex fatigans, Wied., and Cellia albipes, Theo., January 1st, 1905. Seen in the breeding-jar, the larvæ assumed a horizontal position, just below the surface film the extremity of the siphon alone being in contact with the surface flim. They moved forward in sharp jerks quite unlike any other Jamaican Culicid.

In 1874 Dr. Packard described two nearly allied species of Geometrid moths, one a Larentia duodecimlineata, the types being from California, and the other as Larentia perlineata, from New York. There can be no doubt, I think, as to the insect he had before him when describing perlineata. That species seems to be a distinct and easily recognized one, although there is a pretty and not uncommon variety of it which is sometims confused with Euchœca lucata by those who are not very familiar with this group of moths.

It is now twenty years since the lamented Jules Lichtenstein published the first—and, unfortunately, last—part of his proposed monograph of the Aphidæ (a). This instalment contained a list, without references, of the genera and species known to Lichtenstein, but, as will be seen from the following pages, a large number of names was omitted and some were misapplied, so that a new list of genera should be useful, having reard to the interest and importance of the family.

One day last summer I received a letter from a physician in a town near Carbondale, stating that one of his patients had voided some live beetles, and asking me if I cared to see them. Assuring him that I did, he sent me several specimens of the species above mentioned. Not having this species in our collection, one of them was sent to Dr. F.M. Webster, Dept. of Agriculture, Washington, who identified it for me, but doubted its being an intestinal parasite.