REPORT OF THE STATE ENTOMOLOGIST I918 



87 



slender; dorsal plate long, deeply and triangularly incised, the lobes 

 tapering, narrowly rounded; ventral plate long, broadly rounded. 

 Type Cecid. 641, N. Y. State Museum. 



Arthrocnodax obscura Felt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 404 

 This dark male was taken June 26, 1906 on blueberry, Vaccinium, 

 at Karner, N. Y. 



Male. Length .75 mm. Antennae longer than the body, thickty 

 clothed with fine hairs, brown; fourteen segments, the fifth with 

 stems each with a length two and one-half times its diameter; ter- 

 minal segment with the distal enlargement somewhat produced, 

 elongate-oval. Palpi; the first and second segments subequal, with 

 a length about two and one-half times the diameter, the second and 

 third each probably a little longer and more slender; head black. 

 Mesonotum, scutellum and postscutellum dark fuscous, abdomen 

 fuscous. Wings h3'aline, costa probably light brown; halteres 

 fuscous. Femora pale, tibiae fuscous, tarsi darker; claws slender, 

 strongly curved. Genitalia; basal clasp segment long, truncate; 

 terminal clasp segment slightly swollen at the base; dorsal plate 

 broad, deeply and narrowly incised, the lobes obliquely truncate; 

 ventral plate broad,' truncate. Type Cecid. 399. 



Arthrocnodax apiphila Felt 



1907 Felt, E, P. New Species of Cecidomyiidae II, p. 20 



1908 N. Y. State Mus. Bui. 124, p. 301, 404 



1914 Econ. Ent. Jour., 7:458 



1915 N. Y. State Mus. Bui. 175, pi. 2, fig. 12 



1918 N. Y. State Mus. Bui. 200, p. 15:) 



Both sexes were received October 10, 1907 from Dr Burton N. 

 Gates, then expert in apiculture, United States Bureau of Ento- 

 mology, with the state- 

 ment that the larvae ap- 

 peared to subsist on the 

 chaff material and excre- 

 ment in the bottom of the 

 breeding box. It is pos- 

 sible they were preying 

 upon mites. Midges were 

 reared from brood comb 

 affected by American foul 

 brood and originating ""^■^ -J' 



in Tulare county, Cali- 

 fornia, August 2d. The 





Fig. 4 Arthrocnodax apiphila, palpus of 

 male (enlarged, original) 



comb contained much sealed brood when delivered and was found 

 to have decaved. In addition to the midge larvae there were 



