REPORT OF THE STATE ENTOMOLOGIST [Qj6 201 



tibiae and the firsl and last tarsal segments banded basally, and the 

 others narrowly annulate basally and apically with silvery white, 

 the annulations broader on the posterior legs; claws long, slender, 

 strongly curved, the pulvilli as long as the claws. Ovipositor aboul 

 two-thirds the length of the abdomen; terminal lobes long, slender, 

 narrowly rounded. Type Cecid. ai42ya. 



Neolasioptera ambrosiae Felt 

 1909 Felt, E. P. Econ. Ent. Jour., 2:288 



This form was reared by Mr C. R. Crosby in January 1909 from 

 stems of the giant ragweed, Ambrosia trifida, taken at 

 Ithaca, N. Y., in midwinter. There was no evidence of a gall. The 

 larva has been observed in giant ragweed in the vicinity of Albany 

 but no adults have been reared. 



Male. Length 2 mm. Antennae dark brown; 15 segments, the 

 fifth with a length one-fourth greater than its diameter, the terminal 

 segment slightly reduced, narrowly rounded apically. Palpi; the 

 first segment short, irregular, the second narrowly oval, the third 

 a little longer, more slender, the fourth fully one-half longer than 

 the third. Mesonotum reddish brown, the submedian lines sparsely 

 haired. Scutellum dark brown, postscutellum reddish brown. 

 Abdomen dark brown, segments one to eight with small, white, 

 submedian spots; venter suffused with silvery scales. Wings hyaline, 

 costa dark brown, the third vein uniting therewith a little before 

 the basal half, the discal spot whitish. Halteres pale orange basally, 

 yellowish apically. Legs mostly dark brown, the tarsal segments 

 banded basally with white, the posterior tarsi broadly so; claws 

 long, rather stout, the pulvilli as long as the claws. Genitalia 

 fuscous, basal clasp segment slender, terminal clasp segment slightly 

 swollen basally; dorsal plate short, deeply and broadly incised, 

 ventral plate long, slender, narrowly rounded distally. Harpes 

 slender, irregular apically. 



Female. Length 2.25 mm. Antennae with 17 to 18 segments, 

 otherwise as in the opposite sex. Palpi; the first segment short, 

 irregular, the second narrowly oval, with a length over three times 

 its diameter, the third as long, more slender, the fourth one-half 

 longer, somewhat more slender. Color characters practically 

 as in the opposite sex, except that the banding of the posterior 

 tarsi may be a trifle broader, the most of the fifth segment being 

 yellowish in a few cases. Ovipositor pale orange, unusually slender, 

 with a length two-thirds that of the abdomen; terminal lobes with 

 a length fully three times the diameter. Type Cecid. a 192 6. 



Neolasioptera mimuli Felt 

 1908 Felt, E. P. X. Y. State Mus. Bui. 124, p. 332 



This form, loaned for study by the United States National Museum, 

 was reared November 10, 1885 from twigs of M i m u 1 u s g 1 u t i- 



