13‘2 Proceedings of the Biologiccd Society of Wcishington. 
Lai-o-e quadrate spot on head, or sometimes whole head black, in latter 
case, set otl by a few yellow points, as ocelli, eye-margins, spots on tylus, 
etc. ; })ronotnm usually piceons around calloisities, general color elsewhere, 
two si)ots or vittae on scutellum, and most of corium, straw to yellow; 
curium usually more or less infuscate on disk. Length 2.75 to 3.25 mm. 
Range: From .Massachusetts and Xew Jersey to Colorado. 
Qeocoris bullatus var. obscuratus IMontandon. 
Geocoris hntlatas var. obscuratus INfontandou, Especes nouvelles on pen 
connues du genre Ceocoris Fall. Bui. Soc. Sci. Bucarest XVI, Xos. 
5-(), Sept.-Dec. 1907, ]>. 220 [Boulder, Colorado]. 
Scutellum, anterior hall of ]:)ronotum, ami head excepting apex of tylus 
black. Coloration otherwise and form as in ty|)icai variety. 
Geocoris bullatus var. borealis Dallas. 
Ophthatmiciis borealis Dallas, Hemipterous Insects ... of the British 
Huseum. 11, 1852, j). 585. [North America.] 
Geocoris borealis Distant, Biologia Centrali-Americana Ileteroptera I, 
1882, ]). 199. [Volcan de Agua, Guatemala.] 
Distant says (loc. cit.): ‘‘All the Central .American specimens . . . are 
constant in character and of the form de.scribed by ]\Ir. Dalla.s, of which 
I have examined the type.” Distant’s figure (Plate 18, fig. 17) shows 
the corium to he chiefly fuscous, a point not mentioned in the original 
description, but which characterizes a giant race of Geocoris bullatus 
found in the north and in high mountains farther south. This distribu¬ 
tion indicates that 6orcrt/is is entitled to sub.specific rank, but settling of 
this point may well await further accumulation of material. 
The use of the term borealis for this race rests chiefiy on IMr. Distant’s 
action subsequent to examination of the type. The original description 
is very like that of griseus Dallas, which is placed as a synonym of bullatus. 
Should griseus and borealis prove to be the same thing, as seems likely 
from the original descriptions, the former has precedence. 
The single specimen in the U. S. National .Museum is from Ungava 
Bay, Labrador. Length 4.5 mm. 
Qeocoris decoratus Uhler. 
Geocoris decoratus Uhler, Re])ort upon the insects collected by P. R. 
rider during the explorations of 1875, including monographs of the 
families Gydindae and Saldae, and the Hemiptera collected by .\. S. 
Packard, Jr., .M. I)., Bui. U. S. Geol. and Geogr. Survey of the Ter¬ 
ritories, Vol. Ill, No. 2, 1877, pp. 410-411. [Clear Creek Canon, 
Colorado. ] 
No unequivocal structural character could be found to separate decoratus 
from bullatus. Everything seems to intergrade. Yet decoratus looked at 
in mass is a difierent thing from bullatus. It is longer proportionally, 
