456 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



Carta (hickory) 



Under decaying bark Miastor americana Felt. 



Under dying, sappy bark Cecidomyia sp. 



Leaf Galls 

 Blister galls. — Irregular, dull greenish or black-margined and with a small nipple, 

 diameter, 3 mm Cecidomyia sp. 



Cylindric galls. — Greenish or black, 4 to 5 mm. long, 1 mm. in diameter. 



Caryomyia tubicola O. S. 



Conical galls. — Base subglobular with a long, slender apical process, greenish to 



reddish brown, 3 to 4 mm. long. Occurs in groups on midrib of bittemut 



hickory Caryomyia caryoecola O.S. 



Conical, nearly symmetrical, thin-walled, small, green or red tinted, length, 



2 mm Caryomyia sanguinolenta O. S. 



Narrowly conical, light green midrib or vein gall, length, 5 mm., diameter, 



1 mm Caryomyia sp. 



Globose galls. — Smooth or nearly so. 



Nearly smooth, thin-walled yellowish green or brown, sparsely haired, usually with 



a slight nipple, diameter, 2 mm Caryomyia caryce O. S. 



From same gall, probably inquiline Cecidomyia caryce O.S. 



Slightly pubescent, thick-walled, depressed, yellowish green or brown, diameter, 



2 to 2.5 mm Caryomyia consobrina Felt.' 



Thin-walled, probably similar to the above Caryo^nyia arcuaria Felt. 



Thin-walled without the nipple of Caryomyia caryoe, with a yellowish pubescence, 



diameter, 2 to 4 mm Caryomyia similis Felt. 



Thin-walled, globose, shghtly depressed, with a slight nipple, diameter, 3 to 



4 mm Cecidomyia sp. 



Thick-walled, yellowish green or brown, diameter, 4 to 5 mm. 



Caryomyia antennata Felt. 

 Thick-walled, irregulfirly ovate, granulate, a slight nipple, diameter, 2 to 3 mm. 



Cecidomyia sp. 

 Thin- walled with a false chamber at the apex, diameter, 2 to 3 mm. 



Caryomyia inanis Felt. 

 Globose galls. — Hairy. 



Thick-walled, brown or reddish brown, hairs rather short, curly, thick, diameter, 



6 to 7 mm Caryomyia persicoides Beutm. 



Similar to the above and other Caryomyia galls, probably inquiline 



Clinodiplosis carya; Felt.- 

 Thin-walled, rust red, hairs rather long, straight, diameter, 2 to 4 mm. 



Caryomyia holotricha O. S. 

 Gall, similar to the above, the midge probably inquiline 



Mycodiplosis holotricha Felt. 

 Ihin-walled, long haired, melon-shaped, diameter, 2 to 3 mm. 



Caryomyia thompsoni Felt. 

 Thin-walled, long, thick, brown hair, globose, diameter, 3 to 4 mm.; nipple dis- 

 tinct, long on some Caryomyia sp. 



^ Schizomyia carycecola Felt was supposed to have been reared from this gall. The one or two 

 specimens obtained were probably accidental. 



2 This species was apparently reared from the gall of Caryomia inanis and that of C. persicoides, 

 Pfoba^ly inquiline. 



