THE GENOTYPES OF SAWFLIES AND WOODWASPS. 105 



shorter than the ocellocular line, but longer than the ocelloccipital line; right mandible 

 with 2 inner teeth; head and parts of the thorax irregularly granular; tarsal claws 

 with a long bristle near the middle; stigma more than twice as long as wide, angled 

 below; venation very like Xyela julii; four posterior legs and abdomen beyond the 

 third segment wanting. Black; antennae, palpi, and legs reddish-yellow; wings 

 hyaline, venation pallid. 



Type locality. — Alameda County, California. One specimen col- 

 lected in June. 



Type.— Cat. No. 8887, U. S. National Museum. 

 Related to Pleroneura fulvicornis Rohwer. 



ACANTHOPTENOS Ashmead=ARGE Schrank. 



Aslimead (Can. Ent., p. 212, 1898) described liis genus Acan- 

 ihoptenos for Acanthoptenos weithii Ashmead. The genus is founded 

 upon an abberant specimen of Arge macleayi authors, the intercostal 

 vein being absent in the only perfect fore wing. Acanthoptenos is 

 therefore a synonym of Arge. 



Arge Schrank, 1802. 



Acanthoptenos Ashmead, 1898. 



CALOPTILIA Ashmead. 

 Caloptilia Ashmead, Can. Ent., vol. 30, p. 212, 1898. 



Type. — Caloptilia townsendi Ashmead. 



Ashmead placed his genus Caloptilia in his subfamily Schizocerinse, 

 but in this he is wrong. The type of Caloptilia townsendi Ashmead 

 has the cross-vein in the intercostal cell present and belongs to his 

 Hylotominae. It is the same as Lahidarge Konow. 



LABIDARGE Konow=CALOPTILIA Ashmead. 



The error of Doctor Ashmead in placing Caloptilia in the Schizo- 

 cerinse caused Rev. F. W. Konow to form a new genus Lahidarge for 

 the same group of species. As Konow's genus was described a year 

 later than Ashmead's, it must rank as a synonym of Caloptilia. 



Caloptilia Ashmead, Can. Ent., vol. 30, p. 212, 1898. 



Lahidarge Konow, Ent. Nachr., vol. 25, p. 309, 1899. 



CALOPTILIA TOWNSENDI Ashmead. 



Caloptilia townsendi, Can. Ent., vol. 30, p. 212, 1898. 



Reddish-yellow; head, spot on lateral lobe, four posterior tibiae and tarsi, and apex 

 of abdomen black; wings dusky hyaline with a broad yellow band behind the stigma. 



Female. — Length, 8 mm. Labrum arcuately emarginate anteriorly; clypeus with a 

 V-shaped notch in the middle; supraclypeal area in cross section triangular; the usual 

 frontal basin sharply defined, the middle foveal area separated from the upper area 

 by a low, complete, transverse carina; the middle fovea with a spherical tubercle; 

 postocellar furrow angled; the postocellar area with longitudinal impressed line; 

 flagellum hairy, very slightly thickening apically; transverse median vein received 

 beyond the middle of the first discoidal cell; stigma elongate, rounded on the lower 



