The official publication of Bulletin 4, “The Hessian Fly,” by Dr. A. S. Packard, for the N. A. Entom. Commission, has induced me to study again the question of the importation of this insect by Hessian troops at an early period of the war. The excellent memoir by Dr. A. Fitch was believed to have settled this question in a final manner; therefore his opinion was accepted by all subsequent American writers.

Eupelmus reduvii n. sp.—Female.—Average length of body 2.4 mm. Average wing expanse 4.6 mm. Head slightly wider than thorax, which is of equal width with abdomen. Antennæ sub-clavate, as long as thorax. Collar rather long, much narrowed in front and concave above. Anterior half of mesothotacic scutum convex ; a broad, longitudinal depression posteriorly, the anterior corners of which are extended on in the parapsidal furrows. Scutellum small, much narrowed in front.

Trochilium lustrans, n. s.

Larger than tipuliformis, with long black antennae, which are whitish before the tips. Abdomen black with six yellow bands, the two terminal ones broader than the rest and continued beneath. Anal tuft black and yellow. Legs yellow, marked on tibiae and femora with black. Thorax black with yellow inner edge to the tegulae. Head black with a yellow ring behind and yellowish stripe on each side of the clypeus.