24 Hymenoptera in America North of Mexico 



Biology: Cockerell, 1894. U. S. Dept. Agr., Insect Life 7: 251-253. 



tora Smith. S. Tex. 



Neoptilia tora Smith, 1971. Amer. Ent. Soc, Trans. 97: 540. 9,6. 



Genus PTENUS Kirby 



Pteyios Norton, 1872. Amer. Ent. Soc, Trans. 4: 77. Preocc. by Gray, 1843. 



Type-species: Ptenos niger Norton. Desig. by Rohwer, 1911. 

 Ptenus Kirby, 1882. List Hym. Brit. Mus., v. 1, p. 51. N. name. 

 Ptenellus Malaise, 1937. Ent. Tidskr. 58: 56. 



Type-species: Ptenos nigripectusil) Norton. Orig. desig. 



This genus is found only in the New World and is distributed from southwestern United 

 States to northern South America. 

 Revision: Smith, 1970. Amer. Ent. Soc, Trans. 96: 79-101. 



apulatus Greenbaum. Ariz. 



Ptenus apulatus Greenbaum, 1975 (1974). Pan-Pacific Ent. 50: 423-425. 9. 



bicolor Smith. Tex.; Mexico. Host: Acacia faniesiana. 



Ptenus bicolor Smith, 1970. Amer. Ent. Soc, Trans. 96: 83. 9, cJ. 



Taxonomy: Smith, 1972. Amer. Ent. Soc, Trans. 98: 176 (larva). 



imus Smith. Tex.; Mexico. 



Ptejuis ivius Smith, 1970. Amer. Ent. Soc, Trans. 96: 84. 9. 



jocus Smith. Ariz. (Patagonia Mts.). 



Ptenus jocus Smith, 1970. Amer. Ent. Soc, Trans. 96: 86. 9. 



magnus Smith. W. Tex., N. Mex., Ariz. 



Ptenus magnus Smith, 1970. Amer. Ent. Soc, Trans. 96: 86. 9, 6. 

 modestius Smith. Tex., Ariz., s. Calif. Host: Adults collected from mesquite. 



Ptenus modestius Smith, 1970. Amer. Ent. Soc, Trans. 96: 88. 9, 6. 

 nigropectus (Norton). Miss., La., Tex. Host: Acacia angustissima, Desmayithusi?)- 



Ptenos nigropectus Norton, 1872. Amer. Ent. Soc, Trans. 4: 77. 6. 

 parvus Smith. W. Tex., Ariz. Host: Adults collected from Acacia. 



Ptenus parvus Smith, 1970. Amer. Ent. Soc, Trans. 96: 92. 9, cJ. 



patulus Smith. Ariz. 



Ptenus patulus Smith, 1970. Amer. Ent. Soc, Trans. 96: 94. 9, S. 



texanus (Norton). Tex.; Mexico. 



Ptilia texana Norton, 1869. Amer. Ent. Soc, Trans. 2: 367. 6. 

 Ptenos niger Norton, 1872. Amer. Ent. Soc, Trans. 4: 77. 6. 



torridus Smith. Ariz. 



Ptenus torridus Smith, 1970. Amer. Ent. Soc, Trans. 96: 96. 9 . 



vanus Smith. N. Mex., Ariz.; Mexico. 



Ptenus vanus Smith, 1970. Amer. Ent. Soc, Trans. 96: 96. 9, d. 



vargus Smith. Tex.; Mexico. 



Pte7ius vargiis Smith, 1970. Amer. Ent. Soc, Trans. 96: 98. 9. 



Genus SCHIZOCERELLA Forsius 



Schizocerella Forsius, 1927. Notulae Ent. 7: 19. 



Type-species: Schizocerella axillaris Forsius. Orig. desig. 

 Sofus Malaise, 1937. Ent. Tidskr. 58: 137. 



Type-species: Scbizocera pilicomis Holmgren. Orig. desig. 

 Sterictiphora subg. Leston Ross, 1937. 111. Biol. Monog. 15(2): 54. 



Type-species: Schizocerus zabriskei Webster and Malley. Orig. desig. 



Taxonomy: Benson, 1963. Ann. and Mag. Nat. Hist. (13) 5: 631. —Smith, 1971. Ar. 

 Soc, Trans. 97: 543-546. 



