(d, d.) Torn membrane from the sack of the female, constricted round the body of the male.

(e.) Terminal or basal point, with the prehensile larval antennæ, represented on rather too large a scale.

(f.) The imbedded portion of the male.

(g.) Two pairs of cirri.

(h.) The fold above alluded to, concealing a small portion of the slightly retracted thorax.

[2.] The male of [Ibla Cumingii], viewed from vertically above; magnified about sixty times. The dotted lower portion, represents the outline of the thorax and the positions of the cirri, which, from standing below the mouth, could not be well seen, when the summit of the mouth was in the proper focus.

(a.) Labrum, largely bullate.

(b.) Palpi.

(c.) Mandibles.

(d.) Maxillæ.