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I42 KANSAS UNIVERSITY QUARTERLY. 
and opposite the base of antenne; from the antenniferous process 
to the middle of the sagittate spot a yellowish line, very narrow 
above, widening below. Cheeks broadly black with an abbrevi- 
ated yellow stripe from the inferior orbit of the eye. Front black, 
broadly connected with the black below the antenna; a little below 
the middle two small, narrowly separated, reddish brown, trans- 
verse spots; the opaque portion of the front thinly white pollinose, 
seen in certain lights only and most conspicuously at the orbit of 
the eye. Vertex reddish brown, behind the ocelli with two yellow 
dots placed in a transverse line; the vertex and the sides of front 
below thinly provided with yellowish pile. Occiput black, thinly 
white pilose and white pollinose, the latter conspicuous along the 
orbit of the eye only. Antenniferous process very little projecting 
above, wholly obsolete below, brownish yellow. Antennz black, 
the basal two-thirds of the first joint reddish brown; the first joimt 
slender, scarcely longer than the third and its style together or 
about as long as the front tibia; the second joint scarcely more 
than half as long as the third. Thorax black with inconspicuous, 
very minute, brownish pubescence on mesonotum; humeral callus, 
an oblique, oval spot on presutural depression, an elongate spot 
on mesopleure along the mesopleural suture and below it an oval 
oblique spot on sternopleura along the posterior end of the sterno- 
pleural suture, yellowish; on each side of mesonotum a reddish 
brown, from above seen outwardly arched stripe, beginning a little 
in front of the scutellar ridge and extending to the transverse 
suture; along the middle of mesonotum in front two parallel, nar- 
row, yellowish pollinose stripes, not quite reaching the anterior 
border, but cach one terminating in a transverse, yellowish pol- 
linose spot on the transverse suture, behind which the stripes are 
faintly visible; the black ground color is concealed by the pollen 
of those stripes; sternum very thinly whitish pollinose. Scutellum 
reddish brown, towards the sides yellowish brown, the extreme 
base and lateral angles black, the posterior margin narrowly brown. 
Abdomen above black, much contracted at the base of the second 
segment, provided with short, appressed yellowish pubescence, 
that of the sides of the first segment longer, erect and whitish; the 
eround color is not at all concealed by the pubescence; second 
segment as long as the third, with a small yellow basal spot.on 
each side; each one of the second and third segments on the pos- 
terior margin with a yellow band of equal width throughout and 
reaching the lateral margin, the band of the second segment a little 
broader; on the posterior margin of the fourth segment .a narrower 
