22 Everett E. Wehr 



spot on each side. Vertex shining black, black pilose. (Antennae miss- 

 ing.) 



Thorax shining metallic black, with yellow lateral stripes. Dorsum 

 with two cinerous stripes, evanescent on the posterior two-fifths. Pleura 

 colored like the dorsum with yellow spots as follows: One above the 

 anterior coxa, one each on the mesopleura, sternopleura, and hypopleura. 

 Scutellum yellow, the disk black fasciolate. 



Abdomen shining black, with maize yellow bands. The bands are 

 moderately wide, arcuate and interrupted medially. Segments with 

 apical margins banded buff-yellow, the band on the second segment 

 slightly dilated medially, that on the third segment more strongly so and 

 that on the fourth segment considerably dilated, the yellow of the pos- 

 terior margin of the fifth segment produced into a triangular spot, so 

 that between this spot and the broad maize yellow fasciae the black forms 

 an inverted wine-glass shaped spot. Venter of the first segment maize 

 yellow, second with posterio-lateral spots maize yellow, third and fourth 

 with anterio-lateral and posterio-lateral spots maize yellow, fifth black. 



Coxae and trochanters piceous, femora maize yellow except for an 

 apical reddish yellow band, tibiae maize yellowish, tarsi reddish yellow. 



Wings smoky hyaline; base, costal and subcostal cells, proximal 

 parts of first basal and marginal cells lutescent. 



Type. Lincoln, Lancaster County, Nebraska, June 26, 

 1908 (C. H. Gable). One $ . University of Nebraska collec- 

 tion. This species was determined as new by Mr. C. Howard 

 Curran of the Canadian Department of Agriculture, Division 

 of Entomology, who returned it undescribed. In recognition 

 of Mr. Curran's courtesy and valuable contributions on the 

 Syrphidae, this species has been named in his honor. 



Chrysotoxum cuneatum n. sp. 



$ . Length 12.5 mm. Antennae black, 2 mm. in length, the lengths 

 of the joints in the ratio of 9:12:15, numbering from the first. Face 

 yellow with a rather broad, fusiform, black stripe, extending from the 

 oral margin to the base of the antennae, light pilose; cheeks luteous, 

 separated from the face by a brownish black stripe. Fi'ont shining 

 black, with a yellow pollinose spot on each side, light pilose. Vertex black. 

 Eyes pilose. Occiput covered with ash-gray pollen and with pale yellow 

 pubescence. 



Thorax shining bluish black, with lateral yellow stripes. Dorsum 

 with two yellowish pollinose stripes evanescent on the posterior two- 

 fifths. Pleura colored like the dorsum with light buff spots as follows: 



128 



