286 Hymenoptera in America North of Mexico 



Biology: Muesebeck, 1963. Ent. Soc. Wash., Proc. 65: 306. -Tobias, 1965. Ent. Obozr. 44: 

 841-865. 



Genus ARIDELUS Marshall 



Aridelus Marshall, 1887. Ent. Soc. London, Trans., p. 66. 



Type-species: Arideliis bucephalus Marshall. Monotypic. 

 Helorimorpha Schmiedeknecht, 1907. Hym. Mitteleuropas, p. 523. 



Type-species: Helorimorpha egregia Schmiedeknecht. Monotypic. 

 StictovieteoruH Cameron, 1909. Soc. Ent. 24: 9. 



Type-species: Stictometeonis rufux Cameron. Monotypic. 

 Erythromeieorus Cameron, 1911. Timehri (Ser. 3) 1: 317. 



Type-species: Erythrometeorua reticulatus Cameron. Monotypic. 

 Scipolabia Enderlein, 1920. Arch. f. Naturgesch. 84 (A) (11): 220. 



Type-species: Scipolabia reticulata Enderlein. Orig. desig. 



Species of this genus are parasites of nymphs and adults of Pentatomidae. 



Revision: Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 6-8 (No. Amer. spp.). — Papp, 

 1965. Acta Zool. Hung. 11: 181-201 (World spp.). 



Taxonomy: Shenefelt, 1969. Hym. Cat., part 4, p. 11-15 (cat. World spp.). 

 fisheri (Viereck). Pa. s. to Ga., w. to Kans. and Tex. Host: Euschistus servus euschistoides 

 (Voll.). 

 Helorimorpha fisheri Viereck, 1909. Ent. News 20: 290. 9 , 6. 



melanderi (Brues). Mass., N. Y., Pa., Md., Mich., Tenn. 



Helori)iiorpha itielanderi Brues, 1908. Ent. News 19: 363. 9. 

 nigrithorax Muesebeck. Conn., Va., S. C, Tenn., Tex. 



Aridelus nigrithorax Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 8. 9. 



Genus CHRYSOPOPHTHORUS Goidanich 



Chrysopophthonis Goidanich, 1948. 1st. Ent. Univ. Bologna, Bol. 17: 83. 



Type-species: Chrysopophthonis chrysopiwaginis Goidanich. Orig. desig. 



Parasitic on adults ofChrysopa. 



Revision: Mason, 1964. Canad. Ent. 96: 1005-1017 (World spp.). 

 Taxonomy: Shenefelt, 1969. Hym. Cat., part 4, p. 29-30 (cat. World spp.). 

 americanus Mason. Mass., N. Y., Md., Va., Ohio, Mich., 111., Tenn., Ark., La., Ariz., Calif. Host: 

 Chrysopa caniea Stephans. 

 Chrysopophthonis americanus Mason, 1964. Canad. Ent. 96: 1012. 9,6. 



Genus CRYPTOXILOS Viereck 



Cryptoxilos Viereck, 1911. U. S. Natl. Mus., Proc. 40: 180. 



Type-species: Cryptoxilos dichromorphus Viereck. Orig. desig. 



Meager host records indicate species are parasites of adult Scolytidae. 

 Taxonomy: Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 9-10. -Shenefelt, 1969. 

 Hym. Cat., part 4, p. 30 (cat. World spp.). 

 convergens Muesebeck. D. C, W. Va., Va., N. C. Host: Phloeotribus frontalis (Oliv.). 



Euphorns phloeotribi Ashmead, 1893. In Chittenden, U. S. Dept. Agr., Insect Life 5: 249. 



Nomen nudum. 

 Cryptoxilos convergens Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 9. 9, c5. 



Genus EUPHORIELLA Ashmead 



Euphorietla Ashmead, 1900. U. S. Natl. Mus., Proc. 23: 116. 

 Type-species: Labeo incertus Ashmead. Orig. desig. 



Parasites of Psocoptera. In all known examples, the early instar nymph is parasitized and the 

 mature parasite larva emerges from a mature host nymph or adult. 



