764 Hymenoptera in America North of Mexico 



Morphology: Hill and Pinckney, 1940. U. S. Dept. Agr., Tech. Bui. 715: 6, 11-13. 



Genus ANTISTROPHOPLEX Crawford 



Antistrophoplex Crawford, 1914. Ent. Soc. Wash., Proc. 16: 122-125. 



Type-species: Antistrophoplex bicoloripes Crawford. Orig. desig. 

 bicoloripes Crawford. Iowa, Kans. Host: Antistrophus lygodesmiaepisum Walsh on 

 Lygodesmia. 

 Antistrophoplex bicoloripes Crawford, 1914. Ent. Soc. Wash., Proc. 16: 125. 9. 



Biology: Brandhorst, 1964. Ent. Soc. Amer., Ann. 57: 74-77. 



Genus MICRODONTOMERUS Crawford 



Microdontomerus Crawford, 1907. N. Y. Ent. Soc, Jour. 15: 178, 179. 

 Type-species: Torymus anthonomi Crawford. Orig. desig. 

 anthidii (Ashmead). Calif. Host: Dianthidium pudicum consimile (Ashm.). 



Torymus anthidii Ashmead, 1896. Ent. News 7: 24. 9. 

 anthonomi (Crawford). N. J., Va., S. C, Mo., La., Tex., Utah, Idaho, Wash., Oreg. Host: 



Acanthoscelides homi (Pic), Bnichus brachialis Fahr., B. pisonini (L.), Brachytarsoides 

 altematus (Say), Anthonomus grandis Boh.; Ancylis comptana fragariae (W. and R.), 

 Coleophora malivorella Riley; Bracon mellitor Say, Leptochilus sp. 

 Torymus anthonomi Crawford, 1907. Canad. Ent. 39: 133. 9, cJ. 



Taxonomy: Pierce, Cushman, and Hood, 1912. U. S. Dept. Agr. Bur. Ent., Bui. 100: 1, 31, 49, 

 57-62. 

 fumipennis Crawford. Wyo., s. to N. Mex., w. to Pacific Coast. Host: Malacosoma 

 califomicum (Pack.), M. fragile Stretch, Choristoneura rosaceana (Harr.). 

 Microdontomerus fumipennis Crawford, 1917 (1916). Insecutor Inscitiae Menstruus 4: 

 141-142. 9, (J. 



Biology: Langston, 1957. Calif. Univ. Pubs., Ent. 14: 29-30. 



Genus ROPTROCERUS Ratzeburg 



Pachyceras Ratzeburg, 1844. Ichn. d. Forstins., v. 1, p. 217. Suppressed by Internatl. 

 Comn. Zool. NomencL, 1957, Opinion 437, pp. 25-40. 



Type-species: Pachyceras xylophagorum Ratzeburg. Autobasic. 

 Roptrocerus Ratzeburg, 1848. Ichn. d. Forstins., v. 2, p. 209. Unnecessary n. name for 

 Pachyceras thought to be preocc. by Pachycerus Gyllenhall, 1826. Validated by 

 Internatl. Comn. Zool. NomencL, 1957 (Opinion 437). 



Type-species: Pachyceras xylophagorum Ratzeburg. Desig. by Ashmead, 1904. 

 Rhoptrocerus Dalla Torre, 1898. Cat. Hym., v. 5, p. 98. Emgnd. 



Taxonomy: Hedqvist, 1963. Studia. Forest. Suecica 11: 61-70 (Palearctic spp.). 

 xylophagorum (Ratzeburg). Que. and N. H. to N. C. and La., w. to B. C, Wash., and Ariz. 



Host: Orthotomicus caelatus (Eichh.), Phloeosinus dentatus (Say)?, Polygraphus 



rufipennis (Kby.), Scolytus nigulosus (Ratz.), Dendroctonus frontalis Zimm., D. 



monticolae Hopk., D. pseudotsugae Hopk., Ips calligraphus (Germ.), /. grandicollis 



(Eich.)?, /. pini (Say). 

 Pachyceras Xylophagorum Ratzeburg, 1844. Ichn. d. Forstins., v. 1, p. 218. 9. 

 Pachyceras Eccoptogastri Ratzeburg, 1844. Ichn. d. Forstins., v. 1, p. 218. 9. 

 Roptrocerus rectus Provancher, 1887. Addit. Corr. Faune Ent. Canada. Hym., p. 202. 9. 

 PlatygerrhusC) scolyti Ashmead, 1894. Amer. Ent. Soc, Trans. 21: 335. "9" = cJ. 



Taxonomy: Hedqvist, 1963. Studia. Forest. Suecica 11: 66-70. —Burks, 1964 (1963). Canad. 

 Ent. 95: 1261. 



Biology: Evenden, 1943. U. S. Dept. Agr., Cir. 664: 17. — Reid, 1957. Canad. Ent. 89: 6-7. 

 -Berisford et al., 1970. Canad. Ent. 102: 489. 



