Jan., 1910.] Remarks on the Genus Scaphoideus. 255 



Scaphoideus unicolor Osb. 



Scaphoideus consors var. unicolor Osborn, Jour. Cine. Soc. N. H., Vol. XIX, 



p. 196 (1900). 



This species, as indicated above, is now separated from consors, 

 and the characters given in the description of it as a variety will 

 stand as the specific characters. The essential features in its sep- 

 aration will be the structure of the genitalia, although the inten- 

 sity of coloration appears to be a fairly constant character. The 

 post nodal cell is short and bordered by heavy brown cross veins. 

 No additional localities have been recorded, but I have specimens 

 from Chester, Ga., Anacostia, D. C, Provincetown, Mass., 

 Staten Id., N. Y., so that its distribution now includes the territory 

 from Massachusetts to Georgia and Alabama. 



Scaphoideus mexicanus OsIj. 



This species described from Orizaba, V. C., Mex., from spec- 

 imens which I secured there in January, 1892, has not been noticed 

 in any recent collections. 



Scaphoideus scalaris Van Duzee. 



The various records of this species include localities all the 

 way from Ohio to California, and more recent records include 

 New York. I have also a record for Ohio Pyle, Pa. 



Scaphoideus albonotatus Van D. 



Buflfalo Soc. Nat. Hist., Vol. IX, p. 226 (1909). 



This species described by Mr. Van Duzee from specimens col- 

 lected at Estero, Fla., belongs to the scalaris group. It is closely 

 allied to consors and unicolor, but larger and stouter than either 

 and marked with three pairs of oval white spots along the com- 

 missure of the elytra. The length is 53^2 millimeters. The dis- 

 tinct markings, especially the shape of the elytral spots, and 

 length of post nodal cell, separate this certainly from unicolor. 

 The species has not been taken outside of the type locality. 



Scaphoideus stigmosus Uhler. 

 Proc. Zool. Soc, London, 1895, No. 6, p. 77. 



This was described by Mr. Uhler in his report upon the Hem- 

 iptera Homoptera of the Island of St. Vincent. According to this 

 description the species is related to scalaris. Uhler 's description 

 is in a somewhat inaccessible paper, and for the benefit of Amer- 

 ican students may be reproduced here, especially as I have not 

 seen specimens of the species and cannot give a complete 

 description : 



