150 Journal New York Entomological Society. [Voi. xx. 



Cal. This species is easily separated from A. modcsta Felt by the 

 coloration of the abdomen and the uniarticulate palpi. 



Lasioptera verbenas, new speces. 



Larva. — Length 2.5 to 3.5 mm., rather slender, deep orange. Head mod- 

 erate sized, with slender antennae having a length thrice the diameter; breast 

 bone large, blackish red, tridentate, the median tooth shorter, the shaft well 

 chitinized and with lateral processes anteriorly and posteriorly ; posterior 

 extremity narrowly rounded, finely shagreened. 



Male. — Length 1.5 mm. Antennae hardly extending to the base of the 

 abdomen, sparsely haired, reddish ; 14 segments, the fifth with a length one- 

 fourth greater than its diameter, the terminal one reduced. Palpi ; first seg- 

 ment irregular, the second subquadrate, with a length nearly thrice its diam- 

 eter, the third a little longer than the second, the fourth one third longer than 

 the third, somewhat dilated. Mesonotum black, submedian lines clothed with 

 brownish and brownish white scales. Scutellum covered with white scales. 

 Abdomen black with five submedian white spots, venter suffused with white 

 scales. Wings hyaline, the third vein uniting with the anterior margin near 

 the middle. Tibiae and tarsi fuscous, the first tarsal segment and the base of 

 the other segments on the posterior legs white, the other legs with the tarsal 

 segments narrowly annulate with whitish basally. Claws moderately stout, 

 strongly curved, unidentate, the pulvilli shorter than the claws. Genitalia ; 

 dorsal plate deeply and narrowly incised, the lobes broadly rounded and 

 sparsely setose ; ventral plate long, narrowly rounded. Harpes subtriangular, 

 strongly chitinized. 



Female. — Length 2 mm. Antennae extending to the base of the abdomen, 

 sparsely haired, black ; 20 segments, the fifth with a length three fourths its 

 diameter; terminal segment somewhat produced, with a length 2 to 2^/2 times 

 its diameter. Palpi; first segment irregular, the second with a length 2^4 

 times its diameter, the third as long as the second, somewhat dilated, the 

 fourth a little longer than the third, dilated. Mesonotum fuscous, margined 

 with white scales, the submedian lines ornamented with brownish scales. 

 Scutellum fuscous. Abdomen fuscous with submedian silvery spots pos- 

 teriorly on the first to fourth or fifth abdominal segments. Similar spots 

 laterally occur on the second to fifth segments. Halteres yellowish white, 

 reddish basally. Legs black, the first tarsal segment and the basal portion of 

 the second to fourth tarsal segments on the hind legs white. Ovipositor when 

 extended about as long as the abdomen, the terminal lobes lanceolate, with a 

 length fully three times the diameter and thickly setose. Coloration after 

 Timberlake. Type Cecid a23i3. 



This fly was reared from cylindric enlargements of the flower 

 stalks of Verbena prostrata collected by P. H. Timberlake, November 

 13, 1910, in the Puente Hills, Whittier, Cal. November 30 one gall 

 was full of healthy larvje evidently hibernating in silken tubes at- 



