92 Journal New York Entomological Society. fVoi. xv. 



13. LASIOPHTHICUS Rondani. 

 I. Lasiophthicus pyrastri Linne. 



Two females, one from Lincoln, and the other from Sioux Co., 

 Nebraska. 



14. SYRPHUS Fabricius. 



1. Syrphus americanus Widemann. 



Numerous specimens from Lincoln, West Point, and Falls City, 

 Nebraska, which show considerable variation in size and the bands of 

 the abdomen. 



2. Syrphus arcuatus Fallen. 



Two specimens from Glen, Sioux Co., Nebraska. 



3. Syrphus creper Snow. 



One male from Sioux Co., Nebraska. Formerly recorded from 

 Colorado and New Mexico. 



4. Syrphus mentalis Williston. 



$ . Length 12 mm. Eyes densely pilose, front shining greenish black, extend- 

 ing on either side below the base of the antennas, covered with long black hair. 

 Face whitish yellow with a faint brownish tint, cheeks and broad median stripes from 

 near base ol antennae to oral margin black, tubercle large and prominent. Face cov- 

 .ered with black and white pile, shorter and more sparse than that of the front. An- 

 itennse brownish black, third joint longer than wide. Thorax shining greenish black 

 with dark colored pile, that of the pleura longer and whitish yellow. Scutellum dark 

 brown, subtranslucent, covered with long black pile. Abdomen broader than the 

 thorax, deep black, opaque on the second segment, shining on the remaining segments, 

 • everywhere covered with black pile except anterior lateral boarder of the second seg- 

 iment and yellow bands which have yellowish white pile. Yellow on the second 

 segment in the form of two slender spots widely separated and not touching the lat- 

 eral borders of the segment, band on third segment a little wider, slightly interrupted 

 and touching the lateral borders of the segment in nearly its whole extent, band on 

 the fourth segment more slender, more interrupted but not so widely as those on the 

 second segment and touching the lateral border in its whole extent, fifth and sixth 

 segments black with only a luteous posterior border. All the bands of the abdomen 

 slender. Legs yellowish red, base of femora (nearly all of the hind femora), and 

 hind tarsi black. Hind tibise, front and middle tarsi brown. Wings lightly tinged 

 with brown, stigma brown. 



One male from Glen, Sioux Co., Nebraska, which shows consider- 

 able variation from the description of the female. 



Formerly recorded from females from Washington and Alaska. 



5. Syrphus ribesii Linne. 



Specimens from Beatrice and Glen, Sioux Co., Nebraska. 



I 



