KEFORT OF THE STATE ENTOMOLOGIST I918 149 



Lestodiplosis spiraeafolia Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 410 

 191 8 N. Y. State Mus. Bui. 200, p. 133 



The pale yellowish male was reared August 23, 1906 from a thick- 

 ened leaf fold on meadow sweet, Spiraea tomentosa, 

 collected at Albany. 



Male. Length i mm. Antennae a little longer than the body, 

 rather thickly haired, brown, yellowish basally; fourteen segments, 

 the fifth with stems three and one-half and thrice their diameters, 

 respectively; the distal enlargement pyriform, with a length one- 

 third greater than its diameter; terminal segment, distal enlarge- 

 ment with a length two and one-half times its diameter, obtuse. 

 Palpi; first segment subquadrate, the second with a length three 

 times its width, the third as long as the second, more slender, the 

 fourth slightly longer than the third, somewhat dilated. Face pale 

 yellowish. Mesonotum pale yellowish. Scutellum and postscu- 

 tellimi a little lighter than the pale yellowish abdomen. Wings 

 subhyaline, faintly spotted, costa pale straw. Coxae pale yellowish; 

 femora and tibiae brown, the tarsi lighter. Genitalia; basal and 

 terminal clasp segments long, slender; dorsal plate deeply and 

 triangularly emarginate, the lobes narrowly rounded; ventral plate 

 long, broadly rounded; style long, slender. Type Cecid. 760. 



Lestodiplosis triangularis Felt 



1907 Felt, E. P. N. Y. State Mus. Bui. no, p. 138; separate, p. 42 

 (Cecidomyia) 



1908 N. Y. State Mus. Bui. 124, p. 410 



1909 Ottawa Nat., 22:249 



1918 N. Y. State Mus. Bui. 200, p. 194 



This species was reared August 26, 1906 presumably from an 

 elongate, brown, blistered area on the leaves of Solidago ? 

 canadensis taken at West Lebanon, N. Y. , in August. 



Male. Length i mm. Antennae longer than the body, sparsely 

 haired, brown; fourteen segments, the fifth with stems three times their 

 diameters, the distal node with a length greater than its diameter; 

 terminal segment with the distal enlargement prolonged, sub- 

 cylindric, the apical fourth subcorneal. Palpi; the first segment 

 short, suboval, the second twice the length of the preceding, stout, 

 the third a little longer and more slender than the second, the 

 fourth a little longer and more slender than the third. Face 

 yellowish. Mesonottim brownish yellow, submedian lines obscure. 

 Scutellimi reddish. Abdomen brownish yellow. Wings subhyaline, 

 indistinctly spotted, costa brown. Halteres subhyaline. Coxae 

 white; femora brown, paler beneath; tibiae lighter than the femora; 

 tarsi brown; claws slender, strongly curved at the distal foiuth. 

 Genitalia; basal clasp segment long, slender; terminal clasp seg- 

 ment slightly swollen basally; dorsal plate broad, deeply and 



