Dec, 1919-] Felt: New Gall Midges from the Adirondacks. 287 



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

 haired, fuscous yellowish, probably 21 segments, the fifth with a stem as long 

 as the cylindrical basal enlargement, which latter has a length about Y* greater 

 than its diameter, terminal segment wanting. Palpi: first segment with a length 

 three times its diameter, irregular, the second Y2 longer, broader, the third Yz 

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

 third. Mesonotum reddish brown. Scutellum pale yellowish. Postscutellum 

 and abdomen mostly yellowish, genitalia slightly fuscous. Halteres and legs 

 basally pale yellowish, the distal tarsal segments brownish. Claws moderately 

 stout, evenly curved, unidentate, the pulvilli a little shorter than the claws. 

 Genitalia : basal clasp segment moderately long, broad ; the terminal clasp seg- 

 ment with a length three times its diameter, roundly swollen distally, internally 

 and subapically with a closely set row of long, stout chitinous teeth ; dorsal 

 plate long, broad, deeply and roundly incised, the lobes broad, irregularly 

 truncate and sparsely setose ; ventral plate long, broad, very broadly and 

 roundly emarginate, the lobes short and tapering to a narrowly rounded, 

 sparsely setose apex. Type Cecid. 1735. 



Camptomyia pectinata new species. 



This peculiar male was taken August 26, 1917, at Keene Valley, 

 N. Y., by Mr. Howard Notman. It differs from all its allies by the 

 greatly produced stems of the flagellate antennal segments. 



Male. — Length 1.5 mm. Antennae twice the length of the body, thickly 

 long-haired, dark brown, 20 segments, the fifth with a stem 2Y2. times the length 

 of the cylindric basal enlargement, which latter has a length Y? greater than 

 its diameter, a sparse basal whorl of short setae and a thick subapical whorl 

 of much longer, stout setse. Terminal segment produced tapering and with a 

 length about four times its diameter. Palpi : first segment irregularly quad- 

 rate, the second segment with a length over twice its diameter, the third with 

 a length more than twice the second and more slender, the fourth as long as 

 the third, and more slender. Mesonotum dark reddish brown. Scutellum pale 

 yellowish. Postscutellum yellowish. Abdomen thickly haired, fuscous yellow- 

 ish. Halteres pale basally, fuscous apically. Legs mostly dark straw, whitish 

 basally and with the distal tarsal segments lighter. Claws moderately long, 

 strongly curved, unidentate, the pulvilli about half the length of the claws. 

 Genitalia : basal clasp segment moderately long, stout, terminal clasp segment 

 stout, strongly curved and greatly constricted near the distal fourth ; the apex 

 chitinized and margined with numerous stout, closely set spines. Other struc- 

 tures indistinct in the preparation. Type Cecid. 1726. 



Holoneurus inflatus new species. 



This species was taken September 12, 1917, at Keene Valley, X". 

 Y., by Mr. Howard Notman. It appears to belong in the series with 



