Genus. Sphex, Linn. Latr. &c. Pepsis, Fabr. Pal. Beauv.

Sphex Pensylvanica. Nigra, abdomine petiolato atro, alis subviolaceis. (Expans. Alar. 1 unc. 6 lin.)

Syn. Sphex Pensylvanica, Linn. Syst. Nat. 1. 2. 941. Fabr. Syst. Piez. 211. 15. (Pepsis v.) Paul. Beauv. Ins. d'Afr. et d'Amer. Hym. pl. 3 fig. 4.

Sphex cœrulea, Drury, App. vol. 2. (nec Linn. Syst. N.)

Habitat: New York.

Head and antennæ black. Ocelli distinct. Mouth furnished with jaws, but no tongue to be discerned. Thorax and abdomen dark mazarine blue, almost black; the former is hairy, and separated from the latter by a slender peduncle. Wings brown and thin. Legs dark blue; the fore ones with a single tibial spur, all the rest having two.

PLATE XL.

TRUXALIS BRASILIENSIS.

Plate [XL]. fig. 1.