88 NEW YORK STATE MUSEUM 



dd 22 antennal segments ; fourth palpal segment as long as the 

 third; the apical chitinous processes on the harpes long, 

 subquadrate ; length 3.5 mm; lateral tufts on abdomen 

 not well marked ; reared from leafy rosette gall on 



willow brassicoides Walsh, ai433, ai467 



ddd 2;^ to 25 antennal segments; harpes broadly truncate; length 



4 mm ; reared from large loose apical leaf gall on willow 



? rhodoides Walsh, C. 77S-77, 1247 



dddd 21 to 23 antennal segments; length 3 mm; reared from 



slightly swollen willow twigs 



podagrae Felt, ai399, ai076y 



Rhabdophaga sodalitatis Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 351 



The reddish brown female described below was reared at Albany, 

 N. Y. April 13, 1906, from what appeared to be a typical Phy to- 

 phaga rigidae gall on willow, Salix. 



Female. Length 3 mm. Antennae extending to the second 

 abdominal segment, sparsely haired, dark brown; 14 segments, the 

 fifth with a length two and one-half times its diameter ; terminal 

 segment produced, with a length four times its diameter, subacute 

 apically. Palpi ; first segment long, expanded distally, the second 

 as long as the first, rectangular, the third a little longer than the 

 second, more slender, the fourth one-fourth longer than the third, 

 slender. Mesonotum dark brown. Scutellum reddish brown. 

 Abdomen dark brown. Wings hyaline, costa dark red, subcosta 

 uniting therewith at the basal third. Halteres yellowish brown. 

 Legs brownish yellow, the tarsi darker ; claws slender, strongly 

 curved, the pulvilli as long as the claws. Ovipositor nearly as long 

 as the abdomen, the terminal lobes with a length nearly five times 

 the width, tapering, narrowly rounded. Type Cecid. aio74b. 



Rhabdophaga triticoides Walsh 



1864 Walsh, B. D. Ent. Soc. Phila. Proc, 3:598 (Cecidomyia) ; p. 599 

 (C. hordeoides) 



1867 Ent. Soc. Phila. Proc, 6:225 (Cecidomyia) 



1906 Felt, E. P. Ins. Affect. Prk. & Wdld. Trees, N. Y. State Mus. 

 Mem. 8, 2 :745 (Cecidomyia and C. hordeoides) 



1908 • N. Y. State Mus. Bui. 124, p. 351, 353 



1908 Jarvis, T. D. Ent. Soc. Ont. 38th Rep't, p. 87-88 



1909 Ent. Soc. Ont. 39th Rep't, p. 92 



1912 Cosens, A. Canad. Inst. Trans., 9:322-23 (Cecidomyia) 



The gall of this species was recorded by Walsh as being very 

 rare on Salix cordata near Rock Island, 111. What we 

 take to be a modified form of this gall was also described under 

 the name ofC. hordeoides. This gall is rather common in 



