August, 09] JOURNAL OF ECONOMIC ENTOMOLOGY 291 



Canton, Mass. Male 2.75 mm. long. Abdomen dark red. Anten- 

 nas with 22 segments, the fifth with a stem one fourth the length of 

 the eylindrie basal enlargement. Female 3.5 mm. long. Abdomen 

 mostly deep red, 21 subsessile segments. The deep orange larva is 

 unique, with the breastbone dilated anteriorly and multidentate. This 

 species is closely related to Sackenomyia (Cecidomyia) porterm CklL, 

 though readily separated therefrom. Type Cecid. al934. 



Rliopalomyia castanece n. sp. was reared June 13, 1908, from a gall 

 on chestnut, the leaf petiole being affected and frequently embracing 

 the entire tip of the twig and causing a deformity like brussels sprouts. 

 This gall was taken by the -vrriter at Stowe, Mass. Female 1.75 mm. 

 long. Abdomen a deep fuscous orange. Antenna with 12 segments, 

 the fifth with a length one fourth greater than its diameter. Type 

 Cecid. al716. 



Cincticornia pustulata u. sp. was reared in April and jNIay, 1909, 

 from oval, pustulate swellings, 5 to 6 mm. in diameter, on the leaves of 

 yellow barked or black oak, Quercus velutina, taken by Miss Cora H. 

 Clarke at Magnolia, Mass. Male 2 mm. long. Abdomen deep red- 

 dish orange ; scutellum fuscous yellowish ; wings small and relatively 

 long and narrow; fifth antennal segment with 8 to 9 circumfili. Fe- 

 male, abdomen mostly dark reddish orange, the fifth antennal seg- 

 ment with a length four times its diameter and with four anastomosing 

 circumfili. Type Cecid. al789. 



Cincticornia simpla n. sp. was reared in April and May, 1909, from 

 an irregularly oval, pustulate swelling, 5 to 6 mm. in diameter, from 

 the leaves of the yellow barked or black oak, Quercios velutina, and 

 also red oak, Q. rubra, taken by Miss Cora H. Clarke at Magnolia, 

 Mass., and also collected in the vicinity of Albany. INIale 2 mm. long. 

 Abdomen dark brown ; scutellum reddish brown ; wings small, rela- 

 tively short and broad; fifth antennal segment with a length two and 

 one half times its diameter and but two stout circumfili. Female, 

 abdomen mostly deep reddish orange, the fifth antennal segment with 

 a length three and one half times its diameter. Type Cecid. al9-t2. 



Cincticornia glohosa n. sp. was reared in April and May, 1909, from 

 a subhemispheric, brown, slightly nippled oak leaf gall, 1.75 mm. 

 in diameter. Male 2 mm. long. Abdomen dark brown ; scutellum 

 reddish brown ; wings small, relatively short and broad ; fifth antennal 

 segment with a length about three times its diameter and 11 circum- 

 fili. Female abdomen reddish orange, the fifth antennal segment 

 with a length four times its diameter and 4 anastomosing circumfili. 

 Type Cecid. al902. 



Cincticornia podagrce n. sp. was reared in April, 1908, from a nar- 



