1 122 Hymenoptera in America North of Mexico 



Family VANHORNIIDAE 



This family is represented by a single known species, specimens of which seem to be rare in 

 collections. The group appears to be closely related to the Heloridae and the Roproniidae. 



Genus VANHORNIA Crawford 



Vanhornia Crawford, 1909. Ent. Soc. Wash., Proc. 11: 63. 



Type-species: Vanhornia encnemidarum Crawford. Orig. desig. 

 eucnemidarum Crawford. Que., Maine, N. H., Mass., Conn., N. Y., Pa., Md., Va. Host: Larvae 

 of Eucnemidae. 

 Vanhornia eucnemidarum Crawford, 1909. Ent. Soc. Wash., Proc. 11: 63. 9, i . 



Family ROPRONIIDAE 



This is another small, little-known group that is poorly, if at all, represented in most collec- 

 tions. The species appear to be parasites of sawfly larvae. 



Revision: Townes, 1948. U. S. Natl. Mus., Proc. 98: 85-89. 



Taxonomy: Ashmead, 1898. Ent. Soc. Wash., Proc. 4: 132-133. —Bradley, 1905. Ent News 16: 

 14-17. — Yasumatsu, 1956. Insecta Matsumurana 19: 117-122. — Yasumatsu, 1958. Insecta 

 Matsumurana 21: 112-114. -Heqvist, 1959. Ent. Tidskr. 80: 137-139. —Yasumatsu, 1961. 

 Mushi 35: 68-69. 



Biology: Chao, 1957. Fukien Agr. Jour. 5: 73-76 {Ropronia reported to be parasitic on sawfly 

 larvae). 



Genus ROPRONIA Provancher 



Ropronia Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., pp. 152, 154. 

 Type-species: Ropronia pediculata Provancher. Monotypic. 



Roptronia Ashmead, 1898. Ent. Soc. Wash., Proc. 4: 132. Error. 

 californica Ashmead. Calif., Greg. 



RoptroniaC) californica Ashmead, 1898. Ent. Soc. Wash., Proc. 4: 133. 6. 

 garmani Ashmead. N. H. to Ga., w. to Iowa. 



Roptronia (!) garmani Ashmead, 1898. Ent. Soc. Wash., Proc. 4: 132. S. 

 pediculata Provancher. Ont., N. Y. Host: Monoctenus suffusus (Cress.). (Record communicated 

 by L. Masner in correspondence). 



Ropronia pediculata Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 154. 9. 



Ropronia ashvteadii Bradley, 1905. Ent. News 16: 17. 9. 



Family HELORIDAE 



The members of this family are internal parasites of the larvae of Chrysopidae. 



Revision: Pschorn-Walcher, 1955. Schweiz. Ent. Gesell., Mitt. 28: 233-250 (Palearctic species). 



Taxonomy: Ashmead, 1893. U. S. Nat. Mus., Bui. 45: 330-331. —Ashmead, 1902. N. Y. Ent. 

 Soc, Jour. 10: 243. — Kieffer, 1914. Das Tierreich, Lief. 42, pp. 57-62. — Riek, 1955. Austral. 

 Jour. Zool. 3: 258-265. -Ceballos, 1965. Graellsia 21: 11-16. 



Morphology: Oeser, 1961. Berlin Zool. Mus., Mitt. 37: 72-73 (ovipositor). 



Genus HELORUS Latreille 



Helorus Latreille, 1802. Hist. Nat. Crust. Ins., v. 3, p. 309. 



Type-species: Helorus ater Latreille. Monotypic. 

 Copelus Provancher, 1881. Nat. Canad. 12: 206. 



Type-species: Copelus paradoxus Provancher. Monotypic. 

 paradoxus (Provancher). As currently identified this species occurs throughout Continental 

 United States (except Alaska); known also from N. B. and B. C. Host: Chrysopa 

 )naiuscula Banks; Chrysopa spp. 

 Copelus paradoxus Provancher, 1881. Nat. Canad. 12: 207. 9. 



