REVISION OF LISTROCHELUS SAYLOR 117 



1932. Fall, Henry Clinton: New North American Scarabaeidae, with remarks 



on known species. Joiirn. New York Ent. See, vol. 40, pp. 183-204. 



Describes as new L. plenus (p. 199) and L. juvenilis (p. 200). {L. juvenilis is now included in the 

 subgenus Phyltophaga sensu stricto.) 



1933. Baebett, R. E.: New species of North American Scarabaeidae (Coleop.). 



Can. Ent., vol. 65, pp. 129-130. 

 Describes as new L. duncani (p. 129; pi. 8). 



1934. Chapin, Edwabd Albert: A new Lislrochelus injuring Pinus ponderosa 



Lawson in the Rocky Mountain region (Coleoptera: Scarabaeidae). 

 Proc. Biol. Soc. Washington, vol. 47, pp. 93-94. 



Describes as new L. langeri (a synonym of L.falsus). 



1935. : Review of the genus Chlnenobia Blanchard (Coleoptera: 



Scarabaeidae). Smithsonian Misc. Coll., vol. 94, No. 9, 20 pp., 12 figs. 



Revises the genus Chlaenobia (herein designated as a subgenas) and discusses generic concepts 

 in the rhizotrogine scarabs. 



1937. Saylor, Lawrence W.: Necessarj- changes in status of important rhizo- 



trogid genera (Col. Scarabaeidae). Rev. Ent., vol. 7, pp. 318-322. 

 Discusses validity of genera in the Phyllophaga complex. 



1938. Arrow, G. J.: The coleopterous genus Anthypna. Ann. Mag. Nat. Hist., 



ser. 11, vol. 2, pp. 285-290. 



Mentions (p. 286) generic and subgenerie usage of names. 



1939. Saylor, Lawrence W.: Revision of the beetles of the melolonthine sub- 



genus Phytalus of the United States. Proc. U. S. Nat. Mus., vol. 86, 

 pp. 157-167. 



Revises the United States species of Phytalus and discusses further subgenerie revisions in 

 the Phyllophaga complex of genera. 



