202 



NEW YORK STATE MUSEUM 



brownish. Legs pale at bass, gradually darkening distally, tarsi 

 light brown; claws slende", uniformly curved. Ovipositor short, 

 about one-fourth the length of the body, terminal lobes short, 

 stout, broadly rounded. Type Cecid. 80. 



Phytophaga ulmi Beutm. 



1907 Beutenmueller, William. Amsr. Mas. Nat. Hist. Bui. 23, p. 387 

 (Cecidomyia) 



1908 Jarvis, T. D. Eat. Soc. Ont. 38th Rep't, p. 86 (Cecidomyia) 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 369 (Mayetiola) 



1909 Jarvis, T. D. Ent. Sac. Ont. 39th Rep't, p. 80 (Cecidomyia) 

 1912 Felt, E. P. N. Y. Ent. Soc. Jour., 20:240 (Male) 



This bright -red species was reared from small terminal leaves or 

 leaf buds of the American elm, Ulmus americana. It occurs 

 about New York City, probably at Albany, N. Y., and has been 

 reported by Jarvis as fairly common in Ontario, Canada. 



Gall. This is produced by the folding and growing together of 

 small, immature, terminal leaves or leaf buds, the adults appearing 

 in June and Jul^^ 



Female. Length 1.5 mm. Antennae ex- 

 tending to the third abdominal segment, 

 sparsely haired, pale yellowish; 14 sub- 

 sessile segments, the fifth with a length 

 about two and one-half times its diametsr, 

 tapering; terminal segment produced, nar- 

 rowly oval, more or less fused with the 

 preceding. Palpi ; the first segment rather 

 long, irregularly oval, the second short, 

 stout, broadly oval, the third nearly wice 

 the length of the second, more slender, the 

 fourth a little longer and more slender than 

 the third; face yellowish brown. Meso- 

 notum light shining brown, the submedian 

 ]ines sparsely haired. Scutellum ^^ellowish 

 brown, postscutellum fus ous yellowish. 

 Abd men very sparsely haired, light fuscous 

 yellowish (in life bright red) ; terminal seg- 

 ment a little darker, ihe distal portion of 

 the ovipositor pale yellowish. Wings hya- 

 line, costa dark brown, the third vein just 

 before the apex. Halteres yellowish basally, 

 slightly fuscous apically. Coxae and base 

 of femora pale yellowish, the femora distally 

 and tibiae basally a variable brown or yellowish brown, the distal 

 portion of tibiae and tarsi dark brown; claws long, slender, evenly 

 curved; pulvilli shorter than the claws. Ovipositor about as long as 

 the body, the terminal lobes short, broad, broadly rounded. 



Fig. 42 Phytophaga 

 ulmi; gall nearly natu- ' 

 ral size (original) 



