88 Bulletin of the Brooklyn Entomological Society Vol. XIV 
out dark markings, even the callosities being pale. Type, a male, 
from Lindsay, California, August 29, 1911, on tumbleweed, J. 
Revelosgion (UG SiN. Vi) 
On the basis of specimens examined P. cimerea as a whole 
ranges from Washington State, Ontario and Massachusetts south 
to California, Texas, Florida, and to Linares and Tampico, 
Mexico. Variety inornata apparently may occur anywhere in 
the general range. 
Piesma brachialis, n. sp. 
Thorax nearly as wide in front as behind; carinz distinct and 
tcrtuous; third antennal joint but little longer than fourth; 
brachial area distinctly larger than cubital. 
Structural details as noted in key; ground color pale stramin- 
eous, reticulation more brownish, with last joint of antenna 
(except at base), tip of clavus, tip of beak, and mesosternum 
except along middle, blackish brown; corium near humeral angle 
pale and slightly calloused; eyes reddish. Thoracic carine dis- 
tinct, the outer ones of the central group abruptly convergent 
near front margin of thorax, slightly divergent posteriorly. 
Brachial area of elytron larger than cubital the latter with a 
maximum of three series of punctures. Areolar formula, see 
table, page 92. Length 2.75 mm. 
Type of male from Tucson, Ariz., Beesabes 20, EG. ue 
bard (U.S. N.M.). The type and the paratype described below 
were found on Jsocoma (Bigelovia) hartwegt, according to a 
letter from Mr. Hubbard, kindly extracted for me by Mr. E. A. 
Schwarz. On account of the specimens being collected at the 
same time, on the same plant, and particularly because they agree 
in having the brachial area distinctly larger than the cubital, I 
have no doubt that the macropterous type and brachypterous 
paratype belong to the same species. ‘The paratype is a broadly 
oval brachypterous form, more than half as broad as long; reti- 
culation coarse, claval area with only three rows of punctures, 
brachial area decidedly larger than cubital, the latter with a 
maximum of three rows of punctures. A few faint brown flecks 
on costa; eyes, terminal antennal joints, and tip of beak dark 
reddish brown. Length 2.5 mm. 
