92 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.79 



Plagiotrochus batatoides (Aslimead) foUatae Ashmead 



, •^- 7 /AT- IS \isi^ Girault 



chrysolepidicola (Ashmead) { .^ .,.-,.,,„ 



[occidentalis Balduf 



chrysolepidicola pugtni^ Kinsey varians Walsh 



coxii (Bassett) fiavipes Balduf 



frequens frequens (Gillette) varians Walsh 



punctatus (Bassett) varians Walsh 



quinqueseptum var quinqueseptae Balduf 



tumifica (Osten Sacken) nigriceps Walsh 



Miscellaneous 



Dipterous gall on Quercus laevis Walter (cates- querci Ashmead 

 baei Michaux). 



Prodoxus quinquepunctellus Chambers flamminneiventris Girault 



y-inversus Riley flamminneiventris Girault 



Rhabdophaga batatae (Walsh) nubilistigm a Walsh 



Stem gall on Mimosa biuncifera mimosae Balduf 



REFERENCES 



In addition to the references listed in the accounts of the several 

 species of Decatonia, I have found certain works on oaks and galls 

 and other fields of knowledge essential in this study, and cite them 

 here for the convenience of persons who may need them. 



Ashmead, W. H. 



1904. Classification of the chalcid flies. Mem. Carnegie Mus., vol. 1, no. 4, 

 5.55 pp., 9 pis. 

 Felt, E. P. 



1918. Key to American insect galls. New York State Mus. Bull. 200, 310 

 pp., 250 figs., 16 pis. 

 Gbay, Asa. 



1908. New manual of botany. 7th ed., revised by Robinson, B. L., and 

 Fernald, M. L., 926 pp., 1036 figs. 

 Kinsey, A. C. 



1920. New species and synonymy of American Cynipidae. Bull. Amer. 



Mus. Nat. Hist., vol. 42, art. 5, pp. 293-317. 

 1920. Life histories of American Cynipidae. Bull. Amer. Mus. Nat. Hist., 



vol. 42, art. 6, pp. 319-357. 

 1920. Phylogeny of cynipid genera and biological characteristics. Bull. 

 Amer. Mus. Nat. Hist., vol. 42, art 7, pp. 357 a-c, 358-402. 



1922. Studies of some new and described Cynipidae. Indiana Univ. 



Studies No. 53, vol. 9, pp. 1-171. 



1923. The gall wasp genus Neuroterus. Indiana Univ. Studies No. 58, 



vol. 10, pp. 1-150. 

 1929. The gall wasp genus Cynips, a study in the origin of species. In- 

 diana Univ. Studies Nos. 84, 85, 86, vol. 16, 577 pp. 

 Teelease, William. 



1924. The American oaks. Mem. Nat. Acad. Sci., vol. 20, 255 pp., 420 pis. 

 Weld, L. H. 



1926. Field notes on gall-inhabiting cynipid wasps. Proc. U. S. Nat. Mus., 

 vol. 68, art. 10, 131 pp., 8 pis. 



