REPORT OF THE STATE ENTOMOLOGIST I914 43 



Description. The gall produced by this insect has been described 

 above. The midge is a slender, fragile, yellowish fly about one- 

 twelfth of an inch long and remarkable because of the long legs and 

 antennae. Technical descriptions of both sexes and the larvae are 

 given below. 



Male. Length 2 mm. Antennae nearly as long as the body, 

 sparsely haired, reddish; 14 segments, the fifth having the basal 

 portion of the stem with a length twice its diameter, the distal part 

 with a length three times its diameter. The enlargements bear 

 whorls of rather stout, curved setae, the basal one and the distal two 

 circumfili, the loops of the latter, being short, stout and approaching 

 those of Hormomyia; terminal segment with the basal enlargement 

 subglobose, the basal portion of the stem short, irregular, the distal 

 enlargement with a length one-half greater than its diameter, some- 

 what rounded and bearing apically a broadly pyriform, subsessile 

 appendage. The palpus consists of one large segment somewhat 

 expanded distally and sparsel}^ setose. Mesonotum, scutellum and 

 postscutellum a variable yellowish orange, the submedian lines 

 sparsely haired. Abdomen sparsely haired, a variable orange, the 

 basal segments lighter, the distal bright orange. Genitalia fuscous 

 yellowish. Wings hyaline, costa dark brown, the third vein uniting 

 with the margin at the apex of the wing. Halteres orange basally, 

 fuscous yellowish distally. Legs a nearly uniform yellowish orange, 

 the claws tapering, simple, the pulvilU rudimentary. Genitalia; 

 basal clasp segment stout; terminal clasp segment short, stout, the 

 dorsal plate broadly and triangularly emarginate, the lobes broadly 

 roiinded, the ventral plate long, broadly and roundly emarginate, 

 the lobes tapering. 



Female. Length 2.5 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, reddish; 14 segments, the fifth 

 with a stem one-half the length of the cylindric basal enlargement, 

 which latter has a length three times its diameter and rather high 

 circumfili at the basal third and apically; terminal segment with a 

 length twice its diameter, irregularly obtuse. Body a nearly uniform 

 reddish orange, and the abdomen sparsely haired. Ovipositor short, 

 broadly rounded and with a curved, chitinous spine having a length 

 about one-half that of the abdomen. Other characters about as in 

 the male. 



Exuviae. Length 2.5 mm, pale yellowish orange, cephalic horns 

 short, broadly triangular, the thoracic horns slender, slightly ctu"ved. 

 Wing covers extending to the third abdominal segment, the leg cases 

 to the fourth. The surface of the abdominal segments finely granu- 

 lated; posterior extremity with a pair of submedian, broadly triangu- 

 lar, chitinous processes. 



Larva, hibernating. Length 1.75 mm. slender, yellowish green, 

 the head broadly rounded anteriorly, the antennae biarticulate, 

 stout, the distal segment with a length nearly three times its 

 diameter; breastbone bidentate, the anterior portion dark brown, the 

 shaft semitransparent, obsolescent. Segmentation distinct, the sldn 



