During the months of May and June, 1927, I was stationed with the gipsy moth scouts at Henrysburg, near Lacolle, P. Q. In connection with the control measures for this pest the trees in the infested area were banded with burlap. The bands were attached to the trees in the following way:—a strip of burlap about 7 inches wide was placed loosely around the trunk of the tree at a height of 5 feet from the ground. This was tied in place by a piece of twine passed around its centre. After this had been done the upper part of the burlap was folded down so that a double layer hung from the twine. It thus offered an excellent hiding place for insects during the day.

The American species of Aphrophora were first reviewed by Ball (Proc. Ia. Acad. Sci., VI, pp. 209-217, 1898) in his paper entitled “A Review of the Cercopidae of North America North of Mexico” in which eight species are treated, three of them therein describecl as new. Stern's paper (Conn. St. Geol. Nat. Hist. Surv. Bul. 34, pt. IV, 211, 1923) deals with the same species discussed by Ball with especial reference to their occurrence in Connecticut.

The purpose of the present paper is to describe two new species of Bolbocerosoma and to figure the genitalia of the North American species of this genus. It therefore supplements the paper of Dawson and McColloch (Can. Ent., LVI, 9-15).

Otiocerus kirbyi Fh. is unknown to the writer. It would fall under CC. of Group II by description. It may well be a pale form of one of these species. The species found in collections under the name of signoreti Fh. is undoubtedly reaumuri Kby. Metcalf separated the latter as “without” the five spots ignoring the fact that Kirby specially describes them. In the explanation of Plate 40 Metcalf has reversed the name of O. degeeri, and coqueberti. The head of the example of the latter species must have been distorted or out of focus as in nature the apex is but little less than a right angle.

The genus Archytas was erected in 1867 with A. bicolor as type. In 1888 Van der Wulp established the genus Nemochaeta with dissimilis as type and in 1903 gave a key to the Cenrtral American species. Since that time no treatment of the species occurring in America has been presented and the description of the species are for the most part very unsatisfactory, resulting in uncertainty as to their identity. In most cases it is impossible to determine the described species without an examination of the types and until such time as these have been examined they must be considered unrecognizable.