New Species of the Syrphid Genera J/iro- 
gaster Macq. and Ceria Fabr., with Notes. 
BY PAUL HUGO ISIDOR KAHL. 
Mixogaster breviventris, n. sp. 
Black and blackish brown, variegated with yellow bands, black 
and yellow pubescent; antenne much elongated, the third joint 
harrowed in its’ middle, two and a half times as long as the first 
one; abdomen narrowed at base, short-pedunculate; wings anteri- 
Orly brown, posteriorly greyish hyaline; the fourth vein sends a 
Short vein into the first posterior cell. Length ro mm., length of 
wing 8 mm. 
Female. Shining, especially conspicuous on pleure, sternum 
and: coxa, Face sparsely covered with yellow pubescence, not 
Projecting more at oral margin than at the antenna, gently convex, 
at the insertion of the antenne not protuberant; yellow with a 
large, blackish brown, longitudinal median spot, which is gradually 
dilated {rom base of antenne to the lower third of the face, thence 
Contracted 
to a somewhat acute angle, not quite reaching the oral 
Margin, 
the spot is black along its middle; across the cheek from 
the eye to the oral margin a blackish band, behind it a yellow 
Patch, tl 
with the yellow of the posterior oral margin; the sides of the lower 
half of the 
linly covered with whitish yellow pollen and connected 
face with an extremely short, light-yellow pubescence. 
Front immediately above the antenna with a broad, almost black, 
tah Grays band, reaching the eyes and two-thirds of the distance 
Detyeen bass of antenne and anterior ocellus; above this band 
there is q yellow, scarcely narrower one, reaching the eyes and en- 
PTORICHINEG Lipon the vertex we far as the posterior ocelli; below the 
yellow band the 
the p] 
Picea short distance as a well marked arcuate line, reaching the 
Cye; the surf 
mmiediately 
Ing, of brown color, not black like the rest of the crossband. 
front is very slightly depressed; on the sides of 
ack crossband a broad impression, which is continued on the 
ace of the sides of front uneven, somewhat wrinkled: 
above the antenne the surface is smooth, more shin 
(187) KAN. UNIV. QUAR., VOL. VI, NO. 3, JULY. 1897, SERTES A 
