20 HYMENOPTERA OF AMERICA NORTH OF MEXICO 



Pontania popofiana Kincaid, 1900 (syn. by Benson, 1962, loc. cit. supra, 

 p. 404). 



salicisodoratus Dyar. Wis. 



ventralis Say. 



Transf. ISematus latus Cresson to Unplaced Nematinae, p. 54. 

 Morphology: Judd, 1954. Ent. Soc. Ont. Ann. Rpt. 85: 32-39. 



*villosus Thomson. N. W. T.; N. Europe. 



ISematus villosus Thomson, 1862. Svenska Vetensk. Akad. Ofvers. Forh. 



19: 629. 9. 

 Distribution: Benson, 1962, loc. cit. supra, p. 404. 



Genus PONTANIA O. Costa 

 IzzNemafus subgenus Pontania O. Costa of Catalog, pp. 46-48) 



Taxonomy: Benson, 1960a. Brit. Mus. (Nat. Hist.) Bui. Ent. 8: 367- 

 384.— Benson, 1960b. Ent. Mo. Mag. 96: 60.— Benson, 1962, loc. 

 cit. supra, pp. 403-404 (Holarctic spp.). 



acuminata (Marlatt). Transf. to Phyllocolpa Benson. 



agamus (Rohwer). Transf. to Phyllocolpa Benson. 



amentivorus (Rohwer). Transf. to Amauronematus Konow. 



arctica (MacGillivray) . Alaska, Yukon, N. W. T., Man.; Lapland, Switzer- 

 land. Host: Leaf galls on Salix reticulata. Transf. from Euura 

 (teste Benson, 1960a, loc. cit. supra, p. 377). 



Euura abortiva MacGillivray, 1919 (syn. by Benson, 1960a, loc. cit. supra, 

 p. 377). 



Pontania delicatula MacGillivray, 1919 (syn. by Benson, 1960a, loc. cit. 

 supra, p. 377). 



Pontania deminuta MacGillivray, 1919 (syn. by Benson, 1960a, loc. cit. 

 supra, p. 377). 



*arctophilae Benson. Man. Host: Ovip. on Salix arctophila. 



Pontania arctophilae Benson, 1960. Brit. Mus. (Nat. Hist.) Bui. Ent. 8: 

 373. 9. 



*beckettae Benson. Man. Hosts: Galls on Salix planifolia, S. discolor, S. 

 glaiica, S. reticulata. 

 Pontania beckettae Benson, 1960. Brit. Mus. (Nat. Hist.) Bui. Ent. 8: 

 378. ?. 



bozemani (Cooley). Transf. to Phyllocolpa Benson. 



bruneri Marlatt. Transf. from Euura Newman (teste Benson, 1960a, loc. 

 cit. supra, p. 382). 



calif ornica Marlatt. Transf. from Euura Newman (teste Benson, 1960a, loc. 

 cit. supra, p. 382). 



*crassipes (Thomson). Alaska, Yukon, N. W. T., Man.; N. Europe, Switzer- 

 land. Hosts: Galls on Salix herbacea, S. polaris, S. arctica, S. 

 retusa, S. arbuscula, S. myrsinites, S. lapponum. 



Nematus crassipes Thomson, 1871. Hym. Scand. 1: 162. 9. 



Pontania ora Kincaid, 1920 (syn. by Benson, 1960a, loc. cit. supra, 

 p. 379). 



Pontania atrata MacGillivray, 1919 (syn. by Benson, 1960a, loc. cit. 

 supra, p. 379). 



Pontania lorata MacGillivray, 1919 (syn. by Benson, 1960a, loc. cit. 

 supra, p. 379). 



cressoni (Marlatt). Transf. to Phyllocolpa Benson. 

 delicatulus (MacGillivray). Syn. of arctica (MacGillivray). 

 deminutus (MacGillivray). Syn. of arctica (MacGillivray). 

 destrictus (MacGillivray). Syn. of Phyllocolpa excavata (Marlatt). 



