134 Hymenoptera in America North of Mexico 



Type-species: Macrocephus uhnariae Schlechtendal. Monotypic. 

 Cephosoma Gradl, 1881. Ent. Nachr. 7: 294. 



Type-species: Cephosoma syringae Gradl. Monotypic. 

 Copiosoma Kirby, 1882. List Hym. Brit. Mus., v. 1, p. 364. Error for Cephosoma Gradl ?. 

 Adirus Konow, 1899. Ent. Nachr. 25: 74. 



Type-species: Cephus trimaculatus Say. Monotypic. 

 Paradirus Dovnar-Zapolskii, 1931. Mus. Zool. Acad. Sci. Leningrad, Ann. 32: 39. 



Type-species: Paradirus algiricus Dovnar-Zapolskii. Monotypic. 



Larvae of this genus bore in stems of roses and berries. Of 15 species, only 3 are found in 

 North America. 



cowichana Ries. B. C, Wash., Oreg. Host: Rosa. 



Hartigia cowichana Ries, 1937. Ent. News 48: 82. 9. 

 cressonii (Kirby). Mont., Nev., Oreg., Calif. Host: Rosa, Rubiis. 



Cephus abdominalis Cresson, 1880. Amer. Ent. Soc, Trans. 8: 33. 9. Preocc. 



Cephus cressonii Kirby, 1882. List Hym. Brit. Mus., v. 1, p. 403. N. name. 



Biology: Essig, 1912. Calif. Comm. Hort, Monthly Bui. 1: 889-901. — Essig, 1926. Ins. of 

 West. No. Amer., pp. 775-776. — Middlekauff, 1969. Calif. Ins. Surv., Bui. 11: 5-6. 

 trimaculata (Say). Que. to Fla. w. to B. C, Wash., Idaho, Utah, La.; Mexico. Host: Rosa, 

 Rubus. 

 Cephus trimaculatus Say, 1824. In Keating, Narr. Long's 2nd Exped., v. 2, (App.), p. 313. 



9,cJ. 

 Cephus mexicanus Guerin, 1845. Iconogr. Regn. Animal. Ins. 3: 403. 

 Phylloecus bicinctus Provancher, 1875. Nat. Canad. 7: 375. 9. 

 Cephus bifasciatiis Cresson, 1880. Amer. Ent. Soc, Trans. 8: 33. 9. 

 Cephus fasciatus Cresson, 1880. Amer. Ent. Soc, Trans. 8: 33. 9. 

 Macrocephus nigripennis Ghigi, 1915. Redia 10: 306. 9, i. 



Biology: Britton, 1923. Conn. (State) Agr. Expt. Sta., Bui. 247: 372. — Champlain, 1924. Jour. 

 Econ. Ent. 17: 648. 



Genus JANUS Stephens 



Janus Stephens, 1835. Illus. Brit. Ent., v. 7, p. 107. 



Type-species: Janus connectens Stephens. Desig. by Westwood, 1840. 

 Phylloecus Newman, 1838. Ent. Mag. 5: 485. 



Type-species: Phylloecus faimus Newman. Monotypic. 

 Ephippionotus Costa, 1860. Fauna del Regno di Napoli, Imen., pt. 3, Cefidei, p. 11. 



Type-species: Ephippionotus luteiventris Costa, Monotypic. 



Larvae of this genus bore in the stems of bushes and trees. Janus compressus (Fabricius) of 

 Europe and Janus piri Okamoto and Muramatzu of the Far East are pests of pear trees. About 

 19 world species are known. 



abbreviatus (Say). Ont. to Va. w. to Man., Minn., 111. Host: Populus, Salix. Willow shoot 

 sawfly. 

 Cephus abbreviatus Say, 1824. In Keating, Narr. Long's 2nd Exped., v. 2, (App.), p. 314. 9. 

 Xiphydria basalis Say, 1837. Boston Jour. Nat. Hist. 1: 222. 9. 

 Cephus heteropterus Norton, 1861. Boston Soc. Nat. Hist., Proc. 8: 224. 6. 

 Cephus intei-niptus Provancher, 1888. Addit. Corr. Faune Ent. Canada, Hym. p. 355. 9, cJ. 



Biology: Middleton, 1917. Ent. Soc. Wash., Proc. 19: 176. —Britton, 1918. Conn. (State) Agr. 

 Expt. Sta., Bui. 203: 359. — Zappe, 1926. Conn. (State) Agr. Expt. Sta., Bui. 275: 322. 

 bimaculatus (Norton). Que. and Maine to Md. w. to Minn., 111. Host: Viburnum lentago, V. 

 pninifolium. 

 Phylloecus bimaculatus Norton, 1868. Amer. Ent. Soc, Trans. 2: 346. 9,6. 

 Cephus quadriguttatus Westwood, 1874. Thesaur. Ent. Oxon., p. Ill, pi. 20, fig. 11. 9. 

 integer (Norton). Newfoundland to Md. w. to Man., Wash., Iowa. Host: Ribes. Currant stem 

 girdler. 

 Cephus integer Norton, 1861. Boston Soc. Nat. Hist., Proc. 8: 224. 9. 



