THE CANADIAN ENTOMOLOGIST. 35 



In the further study of the Meloidje the student will find the follow- 

 ing works of value : — 

 1853. Leconte, J. L. Synopsis of the Meloides of the United States. 



Proc. Acad. Nat. Sci., Phil., VI. 

 1866. Leconte, J. L. New Species of North American Coleoptera. 



Smithsonian Institution. Fyrota, p. 159; Pomphopoea., p. 160. 

 1873. Horn, Geo. H. Revision of the Species of Several Genera of 



Meloidge of the United States. Proc. Am. Phil. Soc, XIII. 

 1875. Horn, Geo. H. Synonymical Notes and Descriptions of New 



Species of North American Coleoptera. Zonitis, p. 155. Tr. 



Am. Ento. Soc, V. 

 1878. Horn, Geo. H. Contributions to the Coleopterology of the United 

 W States, No. 2. Calospasta, p. 59. Tr. Am. Ento. Soc, VII. 



1880. Leconte, J. L. Short Studies of North American Coleoptera. 



Trans. Am. Ento. Soc, VIII. Nemognatha^ p. 212. 

 1885. Horn, Geo. H. Studies among the Meloidte. Trans. Am. Ento. 

 ^ Soc, XII. 



In addition to the above, a i^w notes on the smaller genera have 

 been published, and certain portions of various larger ones gone over, 

 but these titles have been omitted for lack of space. 



THE NORTH AMERICAN SPECIES OF GNATHODUS. 



BY CARL F. BAKER, FORT COLLINS, COLO. 



The genus Giiathodus, as at present accepted, includes forms closely 

 "allied to Cicadula, but differing in having only two apical cells in the 

 wing. They are of a weaker build than species of Cicadula, and a 

 characteristic appearance from above makes them readily distinguishable 

 from any of that genus. The species are very variable and difficult to 

 define. They are small, more or less slender, greenish, yellowish, or 

 whitish Jassids, usually without distinct markings. The ocelli are distant 

 from the eyes. The clypeus usually somewhat exceeds the gen?e. The 

 ovipositor rarely exceeds the pygofers. In the United States at least, 

 most of the species are of very wide distribution. 



Table of Species. 

 A. Head wider than pronotum ; vertex not at all produced ; colour 

 very pale sordid greenish-fuscous, elytra whitish-subhyaline, 



sternum black ; length, 3-3.25 mm abdominalis. 



AA. Head narrower than pronotum, often much so. 



