282 ' NEW YORK STATE MUSEUM 



twig of red willow, Salix species. The gall may be only about 2 mm 

 long with but one cell, or 6 or 7 mm long and containing a half dozen 

 or more larvae. It is inconspicuous in all cases and appears like a 

 small, gouty swelling of the twig. It was taken by Professor Cock- 

 erell at Las Vegas, N. M., January 31. The following was drafted 

 from type material Icindly placed at our disposal by Professor 

 Cockerell. 



Gall. Irregular swellings somewhat like aborted galls of 

 Rhabdophaga batatas Walsh on small tmgs about one-eighth 

 of an inch in diameter. 



Exuviae. About 1.5 mm long, the cephalic horns long, stout, 

 reddish brown, approxiinate and tapering to an obtuse apex; antennal 

 sheaths with the basal segment reddish brown, the others yellowish 

 transparent and shomng distinctly iS segmental constrictions. 

 The other portions of the exuviae are semitransparent, the wing 

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

 the fourth; the dorsum of the abdominal segments thickly and 

 unifomily clothed vnth. short, stout spines; terminal segment broadly 

 rounded. 



Female. Length 1.5 mm. Antennae probablj- as long as the 

 body, sparse!}' clothed with fine hairs; 18-22 segments, the third 

 cylindric, with a length equal to about three times its diameter, 

 slightl}'- swollen near the basal fourth, tapering. Palpi; the first 

 segment short, stout, subglobular, or in some specimens, prolonged, 

 slender, c^dindric, the second a little longer, suboval, the third one- 

 half longer than the second, more slender, tapering. Mesonottmi 

 reddish bro\\m, the submedian lines inconspicuous. Scutellum 

 dark reddish broAvn, pale yello^^dsh apically, postscutellum dark 

 bro^^'•n. Abdomen a deep fuscous yellomsh or dark brown, the 

 segments apparently sparsely clothed ^^'ith fuscous scales posteriorly, 

 the eighth segment enlarged, subglobular. Wings hyaline, costa 

 light bro^^m. Halteres fuscous basally, yello\\ish white apically. 

 Legs, so far as evident, yellomsh tratisparent ; claws simple. The 

 dorsum of the subglobular eighth abdominal segment mth an 

 iiTegiilar, triangular, chitinous plate. Oxdpositor one-half the length 

 of the abdomen, the basal segment stout, tapering; tenninal segment 

 cultriform, heavily chitinized. Type Cecid. 1252. 



Sackenomyia packardi Felt 



U)09 Felt, E. P. Econ. Ent. Jour., 2: 290-91 



Both sexes were reared April 15 and 16, 1909 from irregularly 

 swollen t^^^.gs of the long leaved willow, Salix longifolia, 

 collected by Winthrop Packard at Canton, Mass., March 6, 1909 

 and forwarded by Miss Cora H. Clarke of Boston. The latter 

 found the gall near Boston, Mass., November 9, 1907. The midge 

 flies in early spring, since galls received from Mr Packard May 4th 



