1908] JOHNSON — NEW ENGLAND BOMBYLIIDAE 15 



They vary in length from 7 to 11 mm. This seems to be the only form that can, 

 with any certainty be referred to Macquart's gracilis "Face et front a polls noirs. 

 Un pen de fond testace sur les c6tes des deux premiers segments de I'abdomen. 

 Long. 4J 1. 9 ". The varietal name of gracilis might therefore be used. Speci- 

 mens are before me from Cranberry, N. C, June 10, '96 {H. W. Wenzel); West- 

 ville, N. J., June 15, '94 (C. W. Johnson); Lehigh Gap, Pa., July 2, '01 {H. L. 

 Viereclc) Lake Pleasant, N. Y. {Dr. E. G. Love). Woods Hole, Mass., July 24, '03 

 (Johnson) Jaffrey, N. H.; Waterville, Me., July 19, '07 and Hampden, Me., Aug. 

 IQ, ' 07 {E.F.Hitchings). 



In appearance it seems to hold the same relation to the typical lateralis that 

 hypomelas holds to alternaia, although in the latter case liypomelas is considered a 

 good species. The group should be carefully studied in connection with some of the 

 western species. 



The other is a small form 6 to 7 mm. in length, with white tomentum and pile. 

 The only yellow tomentum is a small triangular patch in front of the scutellum and 

 sometimes scattered scales on the terminal segment of the abdomen. The second, 

 third and fourth segments have prominent basal bands of white tomentum. This 

 form seems to be more numerous in the spring. It was collected at Riverton, N. J., 

 April 30; at Clementon, N. J., numerous specimens were taken from May 16 to 30, 

 flying over the white sand; it was also collected among the sand dunes back of 

 Provincetown, INIass., June 25, 1904. The varietal name of arenicola might be 

 applied to this form. 



A number of other interesting species of Bombylidae have been added to the 

 New England fauna, including: — Spogosh/limi albofasciatum Macq., Provincetown, 

 Mass., June 25-27, 1904. Spogostylum pauper Loew, Provincetown, Mass., June 25; 

 Manomet, Mass., July 17, (J. A. Cushman). Oncodocera leucoprocta Wied., West 

 Bedford, Mass., June 8, 1906 (L. W. Sivett). Phthiria coquilleti Johnson, Nantucket, 

 Mass., July 4, '06 (J. A. Cushman). The latter were slightly smaller than the type^s 

 collected at Riverton, N. J. 



