REPORT OF THE STATE ENTOMOLOGIST IQl6 200, 



e Tarsi yellowish; male antennae with 14 segments; palpi 

 uniarticulate; reared from whitish blister gall on A s t e r 



laevis laeviana Felt, C. ai287, Pa2440 



ee Tarsi black. . 



/ Female antennae with 21 segments; palpi Inarticulate; 

 reared from a lunate, yellowish, marginal blister gall 



on Solidago flavolunata Felt, C. a 1430 



// Female antennae with 16 segments; palpi uniarticu- 

 late; reared from blister galls with pinkish aureola 

 on Aster divaricata. .divaricata Felt, C. a 1787 



Asteromyia carbonifera Felt 



1862 Osten Sacken, C. R. Dipt. N. A. Am. Mon., 1:195 (Cecidomyia) 



1874 Glover, Townend. MS. Notes From My Journal Dipt., p. 7, pi. 12, 

 fig. 29 (Cecidomyia) 



1880 Riley, C. V. Am. Ent., 3:278 (Cecidomyia) 



1884 Trelease, William. Psyche, 4:196, 199, 200 (Cecidomyia) 



1892 Beutenmueller, William. Am. Mus. Nat. Hist. Bui. 4, p. 271 (Cecido- 

 myia) 



1900 Smith, J. B. List Ins. N. J., p. 621 (Cecidomyia) 



1906 Felt, E. P. Inj. & Other Ins. 21st Rep't, p. 1 16-19 (Lasioptera) 



1908 N. Y. State Mus. Bui. 124, p. 328 (Baldratia) 



1909 Ottawa Nat., 22:248 (Baldratia) 



1910 Stebbins, F. A. Springf. Mus. Nat. Hist. Bui. 2, p. 50 (Baldratia) 



The oval, blisterlike gall of this species is exceedingly common 

 upon the leaves of the narrow leaved Solidago, Solidago 

 graminifolia, throughout New York State and presumably 

 in most sections of the country where this species or its close 

 allies occur. It appears to have been tacitly assumed that most 

 blister galls occurring on Solidago might be referable to the gall 

 described under this name by Osten Sacken. An examination 

 cf his type in the Museum of Comparative Zoology at Cam- 

 bridge, Mass., shows that our identification is presumably correct. 

 The characteristic blister galls produced by this and allied forms 

 are usually filled, or nearly so, with a black carbonaceous matter, 

 suggesting that the tissues have become badly infected by fungus. 

 This material is almost invariably present in many galls. Professor 

 Peck states that after repeated examinations he has failed to observe 

 any evidence of the characteristic fruiting bodies of fungus, and 

 consequently we must assume this malformation to be independent 

 of fungus infection and produced by the activities of the larva. 

 Doctor Trelease, writing in 1884, states that some of these blister 

 galls occur in the herbaria of mycologists, under the name of R h y- . 

 tisma solidaginis and R . a s t e r i s. 



The galls of this species are well developed the latter part of 



