844 Hymenoptera in America North of Mexico 



gracilis (Fullaway). Calif. Host: Anclricus quercuscalifoniicus (Bass.). 



Decatoma gracilis Fullaway, 1912. N. Y. Ent. Soc, Jour. 20: 280. 6. 

 isis (Girault). Calif. Host: Andricus chrysolepidicola (Ashm.), A. quercuscalifoniicus (Bass.), A. 

 specfabilis Kinsey, Callirliytis quercuspomiformis (Bass.), C. qiiercussutioni (Bass.). 



Decatoma isia Girault, 1917. Descr. Stellarum Nov., p. 10. 9. 

 lanae (Ashmead). Fla. Host: Callirliytis querciisturnerii (Ashm.). 



Decatoma lanae Ashmead, 1881. Canad. Ent. 13: 135. 9,6. 

 lobatae (Balduf). Calif. Host: Andricus iviltzae Full., Neuroterus varians Kinsey. 



Decatoma lobatae Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 45. 9. 

 marylandica (Girault). N. S., Md., D. C. Host: Neuroterus quercusbatatus (Fitch). 



Decatoma marylandica Girault, 1916. Brooklyn Ent. Soc, Bui. 11: 112. 9. 

 mellea (Curtis). P. E. I., Que., N. Y., Oreg.; Holarctic. Host: Mayetiola destructor (Say); 



Ditropiiiotus aureoviridis Cwfd., Eurytoma parra Phill., Harmolita liordei (Harr.), H. 

 linearis (Walk.), H. tritici (Fitch). 



Decatoma mellea Curtis, 1831. Brit. Ent. 8: 345. "6" = 9. 



Decatoma anisterdamensis Girault, 1917. Descr. Stellarum Nov., p. 10. 9, 6. 



Taxonomy: Gahan, 1934 (1933). U. S. Dept. Agr., Misc. Pub. 174: 38-41 {amsterdamensis). 

 — Claridge, 1959. Soc. Brit. Ent., Trans. 13: 160 (syn.). 



Biology: Chamberlin, 1941. U. S. Dept. Agr., Tech. Bui. 784: 29, 40. -Cannon, 1963. Canad. 

 Ent. 95: 34. 



michiganica (Girault). Mich. 



Decatoma michiganica Girault, 1920. U. S. Natl. Mus., Proc. 58: 209. 9. 

 tnimosae (Balduf). Ariz. Ecology: Reared from gall on Mimosa biuncifera. Host: 

 Ta)iaostig)iiodes sp. 

 Decatoma mimosae Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 25. 9, 6. 

 nigriceps excrucians (Walsh). 111. Host: Callirfiytis seniinator (Harr.). 



Decatoma nigriceps var. excrucians Walsh, 1870. Amer. Ent. and Bot. 2: 301. 9,6. 

 nigriceps nigriceps (Walsh). Mass., Conn., Va., 111., Mo., Kans. Host: Callirliytis tumifica (0. 

 S.), Disholcaspis quercusmaiuma (Walsh), Xantlioteras quercusforticonie (Walsh). 

 Decatoma nigriceps Walsh, 1870. Amer. Ent. and Bot. 2: 300. 9,6. 

 novascotiae (Balduf). N. S., Va. Host: Callirliytis cornigera (0. S.); Neuroterus quercusbatatus 

 (Fitch). 

 Decatoma novascotiae Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 50. 9, 6. 

 nubilistigma (Walsh). Que., Mass., N. Y., N. J., 111., Kans. Ecology: Reared from Euiira sp. gall 

 on Salix discolor. 

 Decatoma nubilistigma Walsh, 1870. Amer. Ent. and Bot. 2: 301. 9,6. 



occidentalis flavifrons (Balduf). Ariz. Ecology: Reared from gall on live oak. 



Decatoma occidentalis xar. flavifrons Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 61. 6. 

 occidentalis occidentalis (Balduf). Conn., Colo., N. Mex., Utah, Ariz., Oreg., Calif. Host: 



Adleria weldi (Beut.), Andricus chrysolepidicola (Ashm.), A. lasius (Ashm.), A. lasius 

 var. areolaris Kinsey, A. ruginosus Bass., Antron quercusechinus (0. S.), Disholcaspis 

 canescens (Bass.), D. corallina (Bass.), D. eldoradensis (Beut.), D. truckeensis (Ashm.), 

 Xanthoteras eburneuin (Bass.). 

 Decatoma occidentalis Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 58. 9, 6. 

 pezomachoides (Balduf). Ohio. Host: Acraspis pezoiiiachoides (0. S.). 



Decatoma pezomachoides Balduf, 1932. U. S. Natl. Mus., Proc. 79 (28): 69. 9. 

 pomiformis (Balduf). Calif. Host: Callirhytis quercuspomiformis (Bass.). 



Decatoma pomiformis Balduf, 1932. U.S. Natl. Mus., Proc. 79 (28): 70. 9, 6. 

 querci (Ashmead). Fla. Ecology: Reared from dipterous galls on Quercus catesbaei. 



Decatoma querci Ashmead, 1881. Canad. Ent. 13: 135. 6. 

 quercilanae (Fitch). Que., Ont, s. to Fla., w. to Tex., Colo., Ariz. Host: Acraspis inflata 

 (Kinsey), Andricus aciculatus Beut., A. murtfeldtae Ashm., A. pattoni (Bass.), A. 

 quercusjlocci (Walsh), A. quercuspetiolicola (Bass.), Callirliytis flavipes (Gill), C. 

 quercusscitula (Bass.), C. seniinator (Harr.), C. tumifica (0. S.), Disholcaspis 



