364 Annals Entomological Society of America [Vol. XV, 



(1907) confirms the Colorado locality, whereas Gibson and 

 Cogan (1915), if their determination is correct, extend the dis- 

 tribution considerably eastward, giving the western half of the 

 state of Missouri. 



Cicadella gothica Signoret, 1855. 



This widely distributed species, occurring practically over 

 the entire continent, extends its range considerably northward 

 over a wider stretch than any other member of the genus. It is 

 common in all the north-eastern states extending into Canada. 

 Provancher, 1889, lists it as Diedrocephala hieroglyphica Say 

 common at Ca^e Rouge, Ont. Mr. E. P. Van Duzee, 1914, 

 reports it as abundant throughout the year at San Diego 

 County, California. In the south-east it seems to cease at 

 Tennessee, De Long, 1916; South Carolina, Metcalf, 1915; 

 North Carolina, Olsen, 1918. 



Specimens at hand from Arizona vary slightly in size and 

 markings from those of elsewhere: (a) about the same size but 

 all markings on vertex obliterated or nearly so, elytra unicol- 

 orous with veins faintly discernible, pale; (b) ranging consid- 

 erably smaller in size, markings on vertex present and elytra 

 of a deeper color with veins pale. 



It is readily separated from the hieroglyphica group by its 

 designs of the vertex. The elytra of this species has the nervures 

 pale. It does not exhibit as great variation as hieroglyphica. 



Cicadella circellata Baker, 1898. 



It seems somewhat doubtful whether this name is valid or 

 not. There is a good reason to believe that atropunctata Sig- 

 noret is the same thing; his description fits tolerably well, 

 although based on a specimen collected in Brazil, but the illus- 

 tration is indeed very misleading and poor, as are many of the 

 illustrations in the same work. However, this will need further 

 study and especially of material from the south. Meantime, it 

 may well be carried along as above. 



Lawson, 1920, is evidently of the same opinion since he in 

 his recent paper on "The Cicadellidas of Kansas" calls this 

 species atropunctata Signoret. 



