REPORT OF THE STATE ENTOMOLOGIST I916 



159 



uniform pale yellowish. Legs with coxae mostly fuscous, the ba e 

 of femora yellowish white, the distal portion of tibiae and tarsi dark 

 brown, the latter darker; claws long, slender, strongly curved, the 

 pulvilli nearly as long as the claws. Genitalia; basal clasp segment 

 long, stout; terminal clasp segment swollen basally; dorsal plate 

 broad, deeply and triangularly emarginate; ventral plate long, 

 broadly rounded. Harpes long, narrow, tapering, obtuse. 



Female. Length 2.5 mm. Antennae dark brown, basally fuscous 

 yellowish, ventrally silvery white; 21 segments, the fifth with a 

 length about equal to its diameter; terminal segment obpyriform. 

 Palpi fuscous yellowish, the first segment subrectangular, slightly 

 swollen distally, the second one-half longer, stouter, the third a 

 little longer, more slender than the second, the fourth one-third 

 longer and more slender than the third. Ovipositor probably as 

 long as the abdomen, the terminal lobes long, narrowly rounded, 

 and with five or six stout hooks. Type Cecid. ai4o8. 



Lasioptera solidaginis O. S. 



1863 Osten Sacken, C. R. Ent. Soc. Phil. Proc, 

 1 1368-70 



1874 Glover, Townend. MS. Notes From My 

 Journal, p. 68 (Cecidomyia) 



1907 Beutenmueller, William. Amer. Mus. Nat. 

 Hist. Bui. 23, p. 394 (L. t u m i f i c a) 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, 

 p. 325 (L. dor s im aculata) p. 327 (L . tumi- 

 f i c a Beutm.) 



1909 Ottawa Nat., 22 1249 (L . t u m i- 



f i ca) 



1909 Ent. Soc. Ont., 39th Rep't, p. 44 



(L . t u m i f i c a) 



1910 Stebbins, F. A. Springf. Mus. Nat. Hist. 

 Bui. 2, p. 52 (L.tumifica) 



The rough eccentric stem gall of this species 

 is rather common on the stems of Solidago 

 r u g o s a in the immediate vicinity of New 

 York City. It also occurs about Albany and 

 has been taken at Worcester, Mass., and Bos- 

 cawen, N. H. This insect winters as larvae 

 in the deformity, the midges appearing in the 

 spring. Polymecus canadensis 

 Ashm. was reared from this gall. 



A study of the types in the Museum of Comparative Zoology at 

 Cambridge show that L. t u m i f i c a Beutm. and L. d o r s i- 

 m a c u 1 a t a Felt are identical with the above-named species. 

 There is some variation in the white markings on the abdomen, 

 though nothing to justify the recognition of more than one species. 



Fig. 28. L a s"i o p - 

 tera solidagi- 

 nis, gall, somewhat 

 enlarged (original) 



