290 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 2 



June and July, 1877, from a crumpled soft maple leaf. Female 1.25 

 mm. long. Abdomen yellowish brown. Antennas with 15 segments, 

 the fifth with a length twice its diameter, the fifteenth reduced, partly 

 fused with the fourteenth, the fourth palpal segment twice the length 

 of the third. Ovipositor about one half the length of the abdomen. 

 Type Cecid. 1011. 



Bhahdophaga latebrosa n. sp. was reared May 7, 1909, presumably 

 from apparently normal willow buds. Male 1.5 mm. long. Abdomen 

 yellowish brown. Wings broad, with a length only about one hali 

 greater than the width, antennal segments 17, the fifth with a stem 

 three fourths the length of the basal enlargement, which latter has 

 a length two and one half times its diameter, the fourth palpal seg- 

 ment one half longer than the third. Type Cecid. al958. 



Rhahdophaga caulicola n. sp. w^as reared in April, 1908, from slen- 

 der willow twigs, similar to those producing Sackenomyia packardi, 

 and collected by Mr. L. H. Weld at Evanston, 111. Male 2 mm. long. 

 Abdomen dark reddish brown. Antennae wdth 18 or 19 segments, the 

 fifth with a stem three fourtlis the length of the basal enlargement, 

 which latter has a length twice its diameter ; ventral plate long, deeply 

 and roundly emarginate. Female 3.25 mm. long. Abdomen red- 

 dish brown. Antennal segments 18, the fifth with a length two and 

 one half times its diameter, the fourth palpal segment a little longer 

 than the third. Type Cecid. al822. 



Rhahdophaga hirticornis n. sp. was reared in September, 1908, and 

 April, 1909, from jars containing Caryomyia persicoides galls and 

 those of Schizomyia pomum, the Rhahdophaga probably coming from 

 the debris. Male 2 mm. long. Abdomen dark brown. Antennal 

 segments 18, the fifth wath a stem three fourths the length of the 

 basal enlargement, the ventral plate broad, deeply and roundly 

 emarginate. Female 2.25 mm. long. Antennal segments 19, the 

 fifth with a length one half greater than its diameter, the fourth palpal 

 segment longer than the third. Type Cecid al941. 



Sackenomyia. vihurnifolia n. sp. was reared in numbers the latter 

 part of April, 1909, from purplish fusiform vein swellings 5 mm. 

 long, on arrow-wood, Viburnum dentatum, taken at Magnolia, Mass., 

 by Miss Cora H. Clarke. Male 1 mm. long; body nearly uniform 

 pale yellow^ Antennae with 14 segments, the fifth with a stem as long 

 as the cylindric basal enlargement. Female 1.5 mm. long. Antennas 

 with 13 or 14 segments, the fifth with a length one half greater than 

 its diameter. Type Cecid. al896. 



Sackenomyia packardi n. sp. was reared April 15 and 16, 1909, from 

 irregularly swollen twigs of willow taken by Winthrop Packard at 



