REPORT OF THE STATE ENTOMOLOGIST I913 1 67 



vicinity of Ottawa, Canada. It has been found at Albany, N. Y., 

 and taken at Plainfield, N. J. It is stated by Professor Beuten- 

 mueller that the gall was first recorded by E. L. Green in 1902 ] 

 and described by E. Brainerd in 1904. 2 The galls from which the 

 type specimens were reared were taken by Mr W. De W. Miller 

 at Plainfield, N. J., who states that they occur from July until 

 late in October, the mature larvae spinning up and hibernating 

 within the gall. 



Gall. The gall is about 1 cm long, 7 cm in diameter, irregular, 

 a variable brown and has been characterized by Doctor Fletcher as 

 a large plumlike gall. The interior consists of a mass of old cells 

 among the seeds, the individual cells being about 2 mm by 1 mm 

 yellowish gray, adherent and irregularly placed. Professor Beuten- 

 meuller states that the gall is about the size of a pea or gooseberry, 

 measures from 6 to 14 mm in diameter and is attached by a short 

 stalk to the base of the plant. 



Male. Length 1.25 mm. Antennae nearly as long as the body, 

 thickly haired, dark brown; 14 segments, the fifth with a stem 

 three-quarters the length of the basal enlargement, which latter has 

 a length nearly twice its diameter; terminal segment reduced, nar- 

 rowly oval. Palpi ; the first segment broadly oval, the second with a 

 length over twice its diameter, the third one-half longer than the 

 second, more slender, the fourth a little longer and more slender 

 than the third. Mesonotum shiny dark reddish brown. Scutellum 

 yellowish brown, postscutellum and abdomen dark yellowish brown, 

 the latter thickly haired. Genitalia fuscous. Wings hyaline, costa 

 dark brown, subcosta uniting with the anterior margin near the 

 basal third, the third vein well before the apex. Halteres yellowish 

 transparent. Coxae and femora basally fuscous yellowish ; femora 

 distally, and tibiae light brown, the tarsi mostly darker brown ■ 

 claws evenly curved, the pulvilli shorter. Genitalia; basal clasp 

 segment long, slender ; terminal clasp segment short, stout ; dorsal 

 plate long, broad, narrowly incised ; ventral plate long, broad. 

 Harpes long, broad, tapering, roundly truncate. 



Female. Length 2 mm. Antennae extending to the base of the 

 abdomen, thickly haired, dark brown; 16 segments, the fifth sub- 

 sessile, with a length twice its diameter. Ovipositor fuscous yel- 

 lowish, nearly as long as the abdomen, the terminal lobes large, 

 narrowly oval. 



Described from type specimens, Cecid. ai830, kindly donated by 

 Prof. William Beutenmueller. 



1 Pittonia, 5 1103. 



2 Rhodora, 6:15. 



