136 Hymenoptera in America North of Mexico 



Cephiis Leskii Lepeletier, 1823. Monog. Tenthred., p. 20. 

 Cephus atripes Stephens, 1835. Illus. Brit. Ent., v. 7, p. 105. 



Cephus flavistemus Costa, 1882. Accad. delle Sci. Fis. e Mat. Napoli, Rend., p. 198. 9. 

 Cephus dypealis Costa, 1894. Prosp. Imen. Ital, v. 3, p. 250. S . 

 Cephus notatus Kokujev, 1910. Rev. Russe d'Ent. 10: 132. 9. 



Cephus tanaiticus Dovnar-Zapolskii, 1926. N. Caucasian Plant Protection Station, Bui. 1: 2, 

 5. 



Biology: Comstock, 1889. Cornell Univ., Agr. Expt. Sta., Bui. 11: 127-142. —Chittenden, 1892. 

 U. S. Dept. Agr., Insect Life 4: 344. — Ries, 1926. Jour. Agr. Res. 32: 277-295. -Udine, 

 1941. U. S. Dept. Agr. Circ. 607, 9 pp. —Wallace and McNeal, 1966. U. S. Dept. Agr., Tech. 

 Bui. 1350, 50 pp. (history; damage; distribution; hosts; biology; control; breeding for sawfly 

 resistance; extensive bibliography to work prior to 1966, too large to repeat here). 



Morphology: Parker, 1934. Bol. Lab. Zool. Gen. e Agr. Portici 28: 159-191 (larval anatomy). 



Genus CALAMEUTA Konow 



Calameuta Konow, 1896. Wien. Ent. Ztg. 15: 151. 



Type-species: Cephus filiformis Eversmann. Desig. by Rohwer, 1911. 

 Monoplopus Konow, 1896. Wien. Ent. Ztg. 15: 151. 



Type-species: Tenthredo saltuuyn (Linnaeus), Fabricius nee Linnaeus. Desig. by 

 Rohwer, 1911. 

 Haplocephus Benson, 1935. Ann. and Mag. Nat. Hist., (10) 16: 544. 



Type-species: Haplocephus aureus Benson. Orig. desig. 



In addition to the single North American representative, there are about 15 Palaearctic spe- 

 cies. 



clavata (Norton). Idaho, Wash., Oreg., CaHf. Host: Grasses Specific hosts not known. 

 Phylloecus clavata Norton, 1869. Amer. Ent Soc, Trans. 2: 345. 9. 



Taxonomy: Benson, 1946. London Ent. Soc, Trans. 96: 103-104. 



Genus TRACHELUS Jurine 



Astatus Panzer, 1801. Faunae Ins. German., heft 83, pi. 12. Preocc. 



Type-species: Sirex troglodyta Fabricius. Desig. by Rohwer, 1911. 

 Trachelus Jurine, 1807. Nouv. Method. Class. Hym. Dipt., p. 70. 



Type-species: Sirex tabidus Fabricius. Monotypic. 

 Cepha Billberg, 1820. Enum. Ins. Mus. Billberg, p. 98. 



Type-species: Sirex tabidits Fabricius. Monotypic. 

 Ateuchopus Konow, 1896. Wien. Ent. Ztg. 15: 151. 



Type-species: Ateuchopus aniieiiius Konow. Desig. by Rohwer, 1911. 

 Eumetaboius Schulz, 1906. Spolia Hym., p. 211. 



Type-species: Sirex troglodyta Fabricius. Desig. by Rohwer, 1911. 

 Trachelastatus Morice and Durrant, 1915. Ent. Soc. London, Trans, p. 383. N. name for 



Cepha Billberg. 

 Neateuchopus Benson, 1935. Ann. and Mag. Nat. Hist., (10) 16: 543. 



Type-species: Neateuchopus tigris Benson. Orig. desig. 

 Microcephus Benson, 1935. Ann. and Mag. Nat. Hist, (10) 16: 545. 



Type-species: Monoplopus judaicus Konow. Orig. desig. 



The 6 species in this genus are found in the Mediterranean Region with one species in- 

 troduced into North America. Larvae bore in the stems of various grasses. 



tabidus (Fabricius). N. Y., N. J., Pa., Del., Md., Va., W. Va., Mich., Ohio; Europe, N. Africa, 



Asia Minor. Ecology: Found on cultivated grasses such as wheat, barley, rye, and oats. 

 No wild grass host is known in N. Amer. May not now occur in N. Y., N. J., and e. Pa 

 due to competition with Cephus pygmaeus. Introduced, first found in N. J. prior to 

 1899. Host: Triticum aestivum, Secale cereale, Hordeum vulgare, Avena. Black grain 

 stem sawfly. 



Sirex tabidus Fabricius, 1775. Systema Ent., p. 326. 



Sirex macilentiis Fabricius, 1793. Ent. Syst., v. 2, p. 131. 



