REPORT OF THE STATE ENTOMOLOGIST I913 



201 



retractile portion and a much more slender, presumably chitinized 

 apical part. 



This genus presents greater affinities with the Dasyneura group 

 than with the Asphondylid group, and we have consequently in- 

 cluded it in the former, despite the peculiar structure of the female 

 ovipositor. This latter organ differs, we believe, widely from that 

 of the typical Asphondylia, and as the antennae present no homol- 

 ogies therewith, we see no other alternative than to make the change. 

 Type C. p i 1 o s e 1 1 a e Kieff. 



Cystiphora viburnifolia Felt 



191 1 Felt, E. P. Econ. Ent. Jour., 4:480-81 



Only one female was reared May 5, 1909, from an inconspicuous 

 elevation on the underside of the leaf of a hobblebush, V i b u r n u m 

 ? 1 e n t a g o , taken b}-^ Miss Cora 

 H. Clarke at Magnolia, Mass., the 

 preceding fall. This gall appears to 

 be very common about Albany, N. Y. 

 The small yellowish midge presents 

 a close, superficial resemblance to 

 S a c k e n m y i a \' i b u r n i f o 1 i a 

 Felt, though it may be easily sepa- 

 rated therefrom by the distinctly uni- 

 dentate claws. The structure of the 

 ovipositor does not agree exactly with 

 that of the European Cystiphora and 

 the species is therefore provisionally 

 referred to this genus subject to fur- 

 ther study. 



Gall. This is a minute, scarcely noticeable elevation, the larvae 

 evidently lying between the upper and lower epidermis and produc- 

 ing a very slight swelling. (PI. 8, fig. 3.) 



Larva. Length 1.5 mm, whitish. Head small. Antennae rather 

 long, tapering; breastbone, stout, bidentate, becoming obsolescent 

 posteriorly. Skin coarsely shagreened ; posterior extremity broadly 

 rounded. 



Fig. 29 Cystiphora 

 viburnifolia, tip of ab- 

 domen (enlarged, original) 



Cystiphora canadensis Felt 



1913 Felt, E. P. Canad. Ent., 40:417 



1914 Cosens, A. Canad. Ent., 41 :i 80. 



This midge was reared from a blister leaf gall on white lettuce 

 or rattlesnake root, Prenanthes altissima or P. alba. 



