April,1918 Bulletin of the Brooklyn Entomological Society aM 
Tip of rostrum reaching to between the hind coxe, first segment passing 
a little the base of the head, a little shorter than second, which is almost 
subequal to the third. 
Macropterous female: Pronotum plainly transverse, lateral margins 
gently rounding anteriorly from the humeral angles. Scutellum very 
transverse. Apex of the corium reaching to the posterior margin of third 
abdominal segment. Membrane damaged in the single macropterous 
specimen, but apparently does not reach apex of abdomen. 
Brachypterous male and female: Pronotum strongly transverse, lateral 
margins posteriorly parallel to each other, a little anterior to the middle 
strongly and somewhat abruptly rounded to the anterior margin. Hemi- 
elytra extremely short, not twice the length of the scutellum, apical angle 
very obtuse, scarcely reaching beyond posterior margin of the meta- 
sternum, apical margin lightly oblique, forming almost a continuous line 
with the opposite margin of the scutellum; the veins rather broadly em- 
browned with the reduced membranous areas obscurely pale. The mem- 
brane pale, very much aborted, scarcely as long as the width of the 
clavus, apical margin gently rounded, reaching the basal margin of the 
second abdominal segment. Exposed dorsum finely transversely rugose 
with fine incumbent silvery pubescence. Venter finely punctate. Some- 
times the acetabule, posterior margin of the metasternum and the venter 
paler. 
Length 3 mm. 
Described from one macropt. 2, Ft. Collins, Col., June 12, 1902 (Type), 
one brachypt. d, Ft. Collins, Col., May 6, 1898, and one brachypt. ?, Ft. Col- 
lins, Col., June 12, 1902, all collected by Dr. E. D. Ball; two brachypt. 9’s 
collected by G. P. Cockerell at Geronimo, N. Mex., March 9, 1902 (U. 
oN Mi): 
This species is smaller than the typical western form of B. 
leucopterus Say, the head is more deflexed, the eyes less project- 
ing, the antennee much shorter and differently colored, the term- 
inal segment being relatively shorter, the disk of the pronotum 
flatter, the corium as well as the membrane is much more ab- 
breviated in the brachypterous form than I have ever seen it in 
B. leucopterus. In this last respect it resembles B. dorie Ferr. 
of Europe. 
Blissus leucopterus Say was described from Virginia. Speci- 
mens from that locality resemble those from Nebraska, Kansas 
and neighboring western states; in the west only macropterous 
forms occur, according to Webster, 1898. Dr. E. D. Ball has a 
brachypterous female from Manitoba in his collection. Fitch, 
second Rept. Trans. N. Y. St. Agr. Soc., 1856, recognizes nine 
