NO. 3581 BALCLUTHA — BLOCKER 00 



been mentioned since, or their use has been included only in a species 

 Ust with no further taxononiic clarification. These names are 

 considered to be nomina dubia until such time as type material is 

 found and studied, if it exists. These names are: Gnathodus delicatus, 

 G. tumulus, G. nevadensis, G. vermiculatus, and G. ahdominalis var. 

 nevadensis. 



References 



Baker, C. F. 



1903. On the Gnathodus species of the ahdominalis group. Invert. Pacifica, 



vol 1, pp. 1, 2. 

 1915. Studies in Philippine Jassoidea, 2: Philippine Jassaria. Philippine 

 Journ. Sci., vol. 10, pp. 49-58. 

 Beirne, B. p. 



1950. A new species of Balcb.dha, with notes on the Canadian Balchithini 

 (Homoptera: Cicadellidae). Canadian Ent., vol. 82, pp. 123-126. 

 Caldwell, J. S. and Martorell, L. F. 



1952. Review of the Auchenorhynchus Homoptera of Puerto Rico. Journ. 

 Dept. Agric. Porto Rico, vol. 34, pp. 1-132. 

 Kramer, S. 



1950. The morphology and phylogeny of Auchenorhj-nchous Homoptera 

 (Insecta). Illinois Biol. Alonogr., vol. 20, pp. 1-111. 



LiNNAVUORI, R. 



1959. Revision of the neotropical Deltocephalini and some related sub- 

 families (Homoptera). Ann. Zool. Soc. 'Vanamo,' vol. 20, pp. 

 1-370. 

 Metcalf, Z. p. 



(in press). General catalogue of the Homoptera, fasc. 6: Cicadelloidea, 

 pt. 10: Euscelidae. U.S. Dept. Agric, Agric. Res. Ser. 

 Oman, P. W. 



1949. The nearctic leafhoppers (Homoptera: Cicadellidae): A generic 

 classification and check list. Washington Ent. Soc. Mem., vol. 3, 

 pp. 1-253. 



OsBORN, H. 



1926. Faunistic and ecologic notes on Cuban Homoptera. Ann. Ent. Soc. 

 America, vol. 19, pp. 335, 336. 

 Ribaut, H. 



1952. Ilomop teres Auchenorhynqucs, 2; Jassidae. Faune de France, vol. 

 57, pp. 1-474. 

 Young, D. A. 



1952. A reclassification of Western Hemisphere Typhlocybinae (Homoptera, 

 Cicadellidae). Univ. Kansas Sci. Bull., vol. 35, pp. 1-217. 



U.S. GOVERNHtNT PRINTING OFFICE: 1967 



