REPORT OF THE STATE ENTOMOLOGIST 1917 87 



yellowish. Wings hyaline, very broad, costa yellowish transparent. 

 Halteres yellowish transparent. Legs yellowish transparent ven- 

 trally, light brown dorsally, particularly the mid tibiae and tarsi; 

 claws' slender, strongly curved. Genitalia; basal clasp segment 

 stout- terminal clasp s'egment swollen basally; dorsal plate broad, 

 broadly and slightly emarginate; ventral plate broad, the deep 

 emargination broadly rounded at base; lobes broadly rounded. 



Female. Length .8 mm. Antennae about one-half as long as the 

 bodv sparsely haired, light brown; 14 segments, the fifth with a 

 stem' one-fourth the length of the cylindric basal enlargement, 





Fig. 23 Lobopteromyia filicis, side view of last abdomi- 

 nal segment and ovipositor of female (enlarged, original) 



which latter has a length two and one-half times its diameter; ter- 

 minal segment produced, the basal portion cylindric, with a length 

 three times its diameter and apically with a stout, knoblike process. 

 Palpi- first segment subquadrate, the second broadly oval, the third 

 with a length three times its diameter, the fourth one-half longer 

 than the third; face yellowish. Mesonotum yellowish brbwn sub- 

 median lines yellowish, setose. Abdomen yellowish brown Wings 

 hyaline with a length about twice the width; halteres and legs yel- 

 lowish transparent, the tarsi slightly fuscous; claws slender, strongly 

 curved, the pulvilli as long as the claws. Ovipositor stout, about 

 half the length of the abdomen; terminal lobe with a length twice its 

 width. Type Cecid. 20. (See plate 6, fig. 7 and plate 10, fig. 2) 



Lobopteromyia apicalis Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 390 



The yellowish males described below and taken May 18, 1906 on 

 basswood, Tilia americana, at Albany, N. Y., in associ- 

 ation with females, presumably cospecific, may be identical with the 

 Cecidomyiaverrucicola O. S. 



Male Length 1.25 mm. Antennae pale straw, longer than the 

 bodv 14 segments, the fifth having the stems one-half and one 

 and one-half times their diameters, respectively, the terminal seg- 



