842 Hymenoptera in America North of Mexico 



Genus ISOSOMODES Ashmead 



Isosoniodes Ashmead, 1888. Ent. Amer. 4: 42-43. No species. —Ashmead, 1894, Amer. Ent. 

 Soc, Trans. 21: 332. One species. 



Type-species: I.soso))ia gigantea Ashmead. Desig. by Ashmead, 1894. 

 giganteus (Ashmead). D. C, Va., Fla.; West Indies. 



laoaonia gigantea Ashmead, 1886. Amer. Ent. Soc, Trans. 13: 127. i. 



Genus SYSTOLE Walker 



Systole Walker, 1832. Ent. Mag. 1: 13, 22. 



Type-species: Systole alblpe)ini.s Walker. Monotypic. 



Taxonomy: Erdos, 1951. Folia Ent. Hung. (n. s.) 4: 57-58 (Palearctic spp.). — Erdos, 1952. 

 Foha Ent. Hung. (n. s.) 5: 121-126 (Palearctic spp.). — Claridge, 1959. Ent. Monthly Mag. 

 95: 39 (British spp.). —Claridge, 1961. Soc. Brit. Ent., Trans. 14: 171-179 (type-species). 

 albipennis Walker. Ont.; Europe, Orient. Ecology: Phytophagous in seeds of umbellifers. Host: 

 AnetliHui gmreole)is, Coriaiidnini sativu»i, Cuminutu cy)iiinHy)i, Daucus carota, 

 Foenicttliini vulgare, Piinpinella aniauyii, Torilis japonica. 

 Systole albipennis Walker, 1832. Ent. Mag. 1: 22. 9. 



Taxonomy: Masi, 1919. Mus. Civ. Stor. Nat. Genova, Ann. (3) 8: 147-148. — Masi, 1933. Soc. 

 Ent. Ital., Bol. 65: 219-220 (male). — Boucek, 1952. Folia Zool. et Ent. 1: 4 (separation of 

 spp.). —Claridge, 1959. Ent. Monthly Mag. 95: 39-40 (description of male and female). 



Biology: Marchal, 1900. Soc. Ent. de France., Ann. 69: 111 (geniculata). — Batra et a/., 1959. 

 Current Sci. [India] 28: 451 (larva). -Wadhi, 1963. Indian Jour. Ent. 25: 384 (hosts). 

 geniculata Foerster. Colo., Idaho, Calif.; Europe, Orient. Ecology: Phytophagous in seeds of 

 umbellifers. Host: Coriandruni sativum, Daucus carota, Foeniculum imlgare, 

 Pi)npi)iella a)iisuui. 

 Systole geniculata Foerster, 1861. Prog. Realsch. Aachen, p. xxxiii. 



Biology: Sakimura, 1946. Hawaii. Ent. Soc, Proc 12: 481 (feeding habits). —Roberts, 1963. 

 Jour. Econ. Ent. 56: 541 (in carrot seeds). 



minuta Ashmead. Fla. 



Systole minuta Ashmead, 1894. Amer. Ent. Soc, Trans. 21: 319. 9, cJ. 



Subfamily EUDECATOMINAE 



Genus EUDECATOMA Ashmead 



Eudecatoyna Ashmead, 1888. Ent. Amer. 4: 42-43. No species. —Ashmead, 1894, Amer. 

 Ent. Soc, Trans. 21: 319. One species. 



Type-species: Decatoma batatoides Ashmead. Desig. by Ashmead, 1894. 

 Decatoniidea Ashmead, 1888. Ent. Amer. 4: 42-43. No species. —Ashmead, 1894, Amer. 

 Ent. Soc, Trans. 21: 322. Two species. 



Type-species: Decatomidea xanthochroa Ashmead. Desig. by Ashmead, 1894. 



The world literature on this genus up to 1944 used the name Decatoma Spinola, 1811. Then 

 Hincks made the decision that Decatoma Spinola was a synonym oiEurytoma Illiger, 1807, leav- 

 ing this genus to take the next available name, E udecatoma Ashmead, 1888. This decision was 

 not based on a study of types, but was based on an entry in Dalla Torre's 1898 Catalogus 

 Hymenopterorum. Since 1944 the literature has employed the name Eudecatoma. It is to be 

 hoped that if Spinola's types are ever found a study of them will show this change to have been 

 justified. 



Revision: Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 1-95 (Decatoma). 



Taxonomy: Hincks, 1944. Roy. Ent. Soc. London., Proc, Series B: Taxonomy 13: 37 

 (nomenclature). —Peck, 1963. Canad. Ent., Sup. 30: 833-844 (change subsp. to var.). 

 arizonica (Balduf). Ariz. Host: Andricus mgitiosus Bass. 



Decatoma foliatae var. arizonica Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 82. 9, 6. 



