14 Hymenoptera in America North of Mexico 



thalictra Middlekauff. Tex., N. Mex. Host: Pinus ediilisin. 



Acantholyda (Itycorsia) thalictra Middlekauff, 1958. Calif. Univ., Pubs., Ent. 14: 126. 9. 

 verticalis (Cresson). Minn., Nebr., and Colo. w. to B. C. and Calif. Host: Piniis contorta, P. 

 monticola, P. ponderosa, P. radiata. 



Lyda verticalis Cresson, 1880. Amer. Ent. Soc, Trans. 8: 26. 9. 



Lyda situilaris Cresson, 1880. Amer. Ent. Soc, Trans. 8: 27. 9. 



Lyda montivaga Cresson, 1880. Amer. Ent. Soc, Trans. 8: 28. 6. 



Lyda rufiventris Cresson, 1880. Amer. Ent. Soc, Trans. 8: 29. 6. 



Itycorsia luteopicta Rohwer, 1910. Canad. Ent. 42: 92. 9. 

 zappei (Rohwer). Que. to N. J. w. to Mich. Host: Pinus aiistriaca, P. rigida, P. strobus. 



Itycorsia zappei Rohwer, 1920. U. S. Natl. Mus., Proc 57: 209. 9, d. 



Subfamily PAMPHILIINAE 



Members of this subfamily are associated with deciduous trees and shrubs. The Nearctic spe- 

 cies of Neurotomini are confined to plants of the family Rosaceae. There are two tribes, and 

 both tribes are Holarctic. 



Tribe NEUROTOMINI 



Genus NEUROTOMA Konow 



Neurotoma Konow, 1897. K. K. Naturhist. Hofmus., Ann. 12: 18. 



Type-species: Tenthredo flaviventris Retzius. Desig. by Rohwer, 1910. 

 Neurotoma subg. Gongylocorsia Konow, 1897. K. K. Naturhist. Hofmus., Ann. 12: 19. 



Type-species: Lyda mandibularis Zaddach. Monotypic 

 Gongylocorisa{\) Ashmead, 1898. Canad. Ent. 30: 208. 



Revision: Middlekauff, 1940. Canad. Ent. 72: 201-206 (adults and larvae). —Middlekauff, 

 1958. Calif. Univ., Pubs., Ent. 14: 149-158. 

 crataegi Middlekauff. Mass., N. Y., Mich., 111., Wis., Man. Host: Crataegus succulenta, C. 

 brainerdi. 

 Neurotoma crataegi Middlekauff, 1940. Canad. Ent. 72: 202. 9. 

 fasciata (Norton). Que. to Fla. w. to Wis. and Mo. Host: Pnimis serotina, P. pennsylvanica. 

 Lydafasciata Norton, 1862. Ent. Soc Phila., Proc. 1: 200. 9. 



Biology: Pearsall, 1902. Canad. Ent. 34: 214-216. 

 inconspicua (Norton). Que. and Mass. to Pa. w. to S. Dak., Mont, and B. C, Ark. and Kans. 



Host: Primus americana, P. cerasus, P. besseyi, P. davidiayia, P. domestica, P. na7ia, P. 

 nigra, P. pennsylvanica, P. virginiana, and probably other species of Prunus. Plum 

 webspinning sawfly. 

 Lyda inconspicua Norton, 1869. Amer. Ent. Soc, Trans. 2: 350. 9. 

 Lyda spoliana Williams, 1896. S. Dak. Agr. Expt. Sta., Bui. 48: 14-17. 9, <J. 

 Lyda nifipes Marlatt, 1896. In Williams, S. Dak. Agr. Expt. Sta., Bui. 48: 17. 9, c5. 



Biology: Severin, 1920. S. Dak. State Ent. Tech. Bui. 1, 53 pp. — Severin, 1920. S. Dak. Agr. 

 Expt. Sta., Bui. 190: 224-251. 

 Willi Middlekauff. N. Y., Pa. Host: Crataegus sp.(?). An adult collection record. 

 Neurotoma willi Middlekauff, 1958. Calif. Univ., Pubs., Ent. 14: 158. 6. 



Taxonomy: Middlekauff, 1965. N. Y. Ent. Soc, Jour. 73: 238 (female, distribution, host). 



Tribe PAMPHILIINI 

 Genus PAMPHILIUS Latreille 



Pamphilius Latreille, 1802. Hist. Nat. Crust. Ins., v. 8, p. 303. 



Type-species: Tenthredo sylvatica Linnaeus. Monotypic. 

 Lyda Fabricius, 1804. Systema Piezatorum, p. 43. 



Type-species: Tenthredo sylvatica Linnaeus. Desig. by Curtis, 1831. 

 Anoplolyda Costa, 1894. Prosp. Imen. Ital., v. 3, p. 233. 



Type-species: Lyda alternans Costa. Desig. by Rohwer, 1910. 



