52 ENTOMOLOGICAL NEWS. [Feb., 18 
the world are concerned, and advocated uniting this tribe 
with the Rhyparochromini. However, the consideration of 
the position of these glandular spots as a tribal character for 
our United States Lethaeini certainly succeeds in grouping 
together, without other characters, a fairly well unified group 
of genera. 
In his synoptic key (pp. 66-67) for separating the three 
species of Scolopostethus, Mr. Bueno, in following Horvath 
1893, perpetuated his error in reference to the ocular setae. 
Dr. Horvath, in Rev. d. Entomol., XII. pp. 238-241, 1893, 
published a description of the three American species of Scolo- 
postethus, remarking that S. atlanticus and S. diffidens difier 
from the introduced European S. thomsoni by the absence of 
the two setae placed near the eyes. As a matter of fact all 
three species possess these setae. It is also inadvisable to use 
claval punctures for specific diagnosis. The spines of the 
fore femora are more dependable as a specific character, but 
these are subject to considerable variation. 
The following key will serve to differentiate the three spe- 
cies of Scolcepostethus : 
1 (4). Hemelytra strongly fasciate with fusccus posteriorly. 
2 (3). Membrane commonly juscous, variegated with pale, with a 
large pale spot on each side in macropt. form. Lateral margins 
of pronotum straight. Anterior femora armed with smaller spines 
only towards apex from the larger spine....S. atlanticus Horv. 
3 (2). Membrane in macropt. forms commonly pale with the veins 
fuscous and without the pale spot on each side. Lateral margins 
of the pronotum obviously concave. Anterior femora armed with 
smaller spines both before and behind the larger preapical spine, 
S. thomsoni Reut 
4 (1). Hemelytra not strongly fasciate with fuscous posteriorly, 
merely slightly embrowned. Lateral margins of the pronotum 
nearly straight. Membrane dark brown with a pale spot on each 
side in both macropt. and brachypt. forms....S. diffidens Horv. 
Mr. de la Torre-Bueno has one of the specimens from Colo- 
rado recorded by Uhler in Gillette and Baker’s Henuptera of 
Colorado, 1895. as Eremocoris tropicus Dist. This particular 
specimen is S. thomson Reut. 
