In colouring this species approaches Cerceris labiata, from which, however, it differs remarkably in the form of the clypeus and the much larger size of the insect. Observed round Avignon in July. I dedicate this species to my daughter Antonia, whose help has often been valuable to me in my entomological researches. Cerceris julii, H. Fab. Length—7–9 millimetres. Black, closely and strongly punctured; clypeus flat; face covered with a fine silvery pubescence; a narrow yellow band on each side, on the inner edge of the eyes; mandibles—yellow with brown tips; antennæ—black above, pale red below; lower face of their basal joint, yellow. Two small distant points on the prothorax; scales of wings and postscutellum, yellow. A yellow band on third segment of the abdomen, and another on the fifth; these two are deeply hollowed on the anterior edge—the first in a semicircle, the second in a triangle. Under part of the body all black; coxæ black; thighs of the hinder pair of legs quite black; those of the two anterior pairs, black at base, yellow at the ends; legs and tarsi, yellow; wings rather smoke-coloured. Female.—Var. (1) Prothorax without yellow dots; (2) two small yellow dots on second segment of abdomen; (3) wider yellow band on inner side of the eyes; (4) front of clypeus edged with yellow. Male unknown to me. This Cerceris, the smallest of my part of France, feeds its larvæ on the smallest kinds of weevils (Bruchus granarius and Apion gravidum). Observed round Carpentras, where it builds in September in soft sandstone—locally called safre. Bembex julii, H. Fab. Length—18–20 millimetres. Black, with bristling whitish hairs on head, thorax, and base of first segment of the abdomen; labrum lengthened, yellow; clypeus, with a sloping ridge, forming as it were an angle of three sides—one face—that of the outer edge—is all yellow, while each of the two others is marked with a large rectangular black patch bordering on its neighbour, and thus forming a stripe; both marks, as well as the cheeks, are covered with a fine silvery down; cheeks on line between the antennæ, yellow; posterior edge of eyes with a long yellow border; mandibles—yellow, with brown tips; two first joints of antennæ yellow beneath, black above, the rest black; prothorax—black; sides and dorsal division, yellow; mesothorax—black; the callous point, and a small one on each side above the base of the intermediate feet, yellow; metathorax—black, with two yellow dots behind, and a larger one on each side above the base of the hind feet. The two first dots are sometimes wanting.