OF WASHINGTON. 187 
Thorax yellowish, with a broad longitudinal mid-dorsal stripe, divided 
lengthwise by a fine pale median line; on the anterior lobe of the mesono- 
tum this stripe embraces a yellow spot each side, while on the anterior 
lobe of the metanotum it consists of two separate spots; on the posterior 
lobe of meso- and metanotum the stripe narrows posteriorly and termi- 
nates same distance before the hind margin of the lobe, on which there is 
a dark median small spot; lateral lobes of meso- and metanotum brown 
marked with yellow; posterior lobe of metanotum bordered in front with 
black; sides of thorax light brownish, spotted with yellowish; sterna 
mostly yellowish. 
Abdomen yellowish, obscurely marked with brownish, especially on 
dorsal carina, lateral sutures, and articulations of segments, the apical 
half of abdomen darker; tip with a number of very stout black spines, 
the inferior appendages with long apical hairs. Legs yellowish, beset 
with large and small black spines and hairs; bases of spines, a ring before 
middle of tibiae (interrupted within), and tip of tibiae and tarsal joints, 
piceous. Tibial spurs hardly as long as first, and claws considerably 
shorter than fifth, tarsal joint. 
Wings a little shorter than abdomen, rather broad, hyaline, tips pointed, 
the fore wings obtusely; a series of fuscous spots between subcosta and 
radius, and faint cloudings on transversals, and on small forks at apex 
and hind margin of the wing. Longitudinal veins yellowish, interrupted 
at cross-veins and at forks with fuscous; cross- veins mostly fuscous, 
some of the intercostals interrupted with yellowish ; pterostigma yellowish, 
fuscous within, a few intercostals forked before it. First cross-vein 
basad of radial sector curved around to meet the first cross-vein from 
radial sector to median vein (in the type specimen). 
Abdomen 23 mm.; hind wing 21.8 mm.; greatest width of anterior 
wing 7.1 mm.; antenna 4.3 mm. 
Columbus, Tex. (E- A. Schwarz, coll. C. V. Riley: i 9); 
Columbus, Tex., June, 1879 (H- A. Schwarz, coll. C. V. Riley: 
i ex.); Havana, 111. (C. A. Hart, 111. St. Lab. No. 24,553). 
Type. No. 8313, U. S. National Museum. 
In the second specimen from Columbus, Tex. the first 
cross-vein basad of radial sector (on the left anterior wing) 
sends a branch to the first cross-vein connecting radial sector 
and median vein, and there is an incomplete vein running 
from the second cross-vein basad of the radial sector towards 
the first. These peculiarities might. not have been noticed 
were it not that the specimen from Havana, 111. has a branch 
connecting all these cross-veins except the basal one (all 
but two basal ones in right hind wing), thus forming an almost 
complete double series of areoles in the space between origin 
of radial sector and the base of the wing. Mr. Nathan Banks 
