Jan., 1910.] Remarks on the Genus Scaphoideus. 
2 55 
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 Osb. 
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. 
Buffalo 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 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 : 
