Superfamily CHALCIDOIDEA 837 



The members of this genus are commonly called jointworms. The larvae make galls in the 

 stems of cereal grains and grasses. 



Revision: Phillips and Emery, 1919. U. S. Natl. Mus., Proc. 55: 433-471 (Nearctic spp.). 

 -Hedicke, 1921. Arch. f. Naturgesch. 86, A, 11: 1-167 (Palearctic spp.). —Phillips, 1936. U. 

 S. Dept. Agr., Tech. Bui. 518: 1-25 (Nearctic spp.). 



Taxonomy: Gahan, 1922. U. S. Natl. Mus., Proc. 61 (24): 7-8 (generic characters). — Gahan, 

 1922. Ent. Sec. Wash., Proc. 24: 33-58 (world host data). —Gahan, 1957. Brooklyn Ent. Soc, 

 Bui. 52: 82-83 (Harmolita type-species). — Claridge, 1958. Ent. Monthly Mag. 94: 81-85 

 (Tetramesa). —Claridge, 1961. Roy. Ent. Soc. London, Trans. 113: 175-216 (Holarctic spp.). 

 -Burks, 1971. Amer. Ent. Soc, Trans. 97: 51-54, 82-86. 

 agropyrocola Phillips and Emery. N. Dak., Utah. Host: Agropyron spp. 



Harmolita agropyrocola Phillips and Emery, 1919. U. S. Natl. Mus., Proc. 55: 458. 9. 



agrostidis (Howard). Calif. Host: Agrostis sp. 



Isosoma agrofitklis Howard, 1896. U. S. Dept. Agr., Div. Ent., Tech. Ser. 2: 12. 9. 



ainsliei Phillips. S. Dak. Host: Elymus sp. 



Hanuolita ainxliei Phillips, 1936. U. S. Dept. Agr., Tech. Bui. 518: 4, 10. 9, 6. 

 albomaculata (Ashmead). N. H., Vt., s. to Va., w. to N. Dak., Nebr., Kans.; Europe, Asia. Host: 

 Pbleuvi pratense. 



Isosonia albomaculatum Ashmead, 1894. Amer. Ent. Soc. Trans. 21: 329. 9, 6. 



Taxonomy: Claridge, 1961. Roy. Ent. Soc. London, Trans. 113: 211. 



Biology: Phillips, 1920. U. S. Dept. Agr., Bui. 808: 15-16. -Phillips and Poos, 1921. Jour. Agr. 

 Res. 21: 421. -Phillips and Poos, 1927. Jour. Agr. Res. 34: 475, 483. 

 bambusae Phillips. Ga., Ala.; S. Russia, China, Japan. Host: Bamboo. Grasses of the tribe 

 Bambuseae. 

 HartHolita bavibmae Phillips, 1936. U. S. Dept. Agr., Tech. Bui. 518: 20. 9. 



Biology: Agekian, 1966. Zool. Zhur. 45: 1724. 

 bromicola (Howard). Conn., Calif. Host: Bronius ciliatus. 



Isosoma bromicola Howard, 1896. U. S. Dept. Agr., Div. Ent., Tech. Ser. 2: 17. 9, cJ. 

 californica (Howard). Calif. Ecology: Develops in the stems of wild grasses. 



Isoso7na califoniicum Howard, 1896. U. S. Dept. Agr., Div. Ent., Tech. Ser. 2: 10. 9, 6. 

 captiva (Lintner). N. Y., Ind., 111. Said to have been reared from wheat. 



Isosoma captivum Lintner, 1888. N. Y. State Mus., Nat. Hist., Rpt. 41: 34. 9, cJ. 



Taxonomy: Phillips, 1920. U. S. Dept. Agr., Bui. 808: 16. 

 cinnae Phillips and Poos. Ohio. Host: China anindinacea. 



Harmolita cinnae Phillips and Poos, 1922. Kans. Univ., Sci. Bui. 14: 352. 9, 6. 

 comatae Phillips. N. Dak. Host: Stipa comata. 



Harmolita comatae Phillips, 1936. U. S. Dept. Agr., Tech. Bui. 518: 9. 9. 

 cornuta (Walker). N. Y., Pa., Va., Ohio, Mich., Ind., Kans.; Europe. Host: Agropyron repens. 



Isosoina cornutum Walker, 1832. Ent. Mag. 1: 19. 6. 



Harmolita agropyrophila Phillips and Emery, 1919. U. S. Natl. Mus., Proc. 55: 450. 6, 9. 



Taxonomy: Claridge, 1961. Roy. Ent. Soc. London, Trans. 113: 212 (syn.). 

 Biology: PhilHps, 1920. U. S. Dept. Agr., Bui. 808: 20 (agropyrophila). 

 dakota Phillips. N. Dak. Host: Elymus. 



Hannolita dakota Phillips, 1936. U. S. Dept. Agr., Tech. BuL 518: 14. 9, o. 

 danthoniae Phillips. Mich. Host: Danthonia spicata. 



Harmolita danthoniae Phillips, 1936. U. S. Dept. Agr., Tech. Bui. 518: 18. 9. 

 elymi (French). Maine, s. to Fla., w. to Wash., Oreg., Calif. Host: Elymus canadensis, E. 

 glaucus, E. virginicus. 

 Isosoma Elymi French, 1882. Canad. Ent. 14: 10. 9. 



Biology: Phillips, 1920. U. S. Dept. Agr., Bui. 808: 20. —Phillips and Poos, 1927. Jour. Agr. 

 Res. 34: 475. 



