SYNOPSIS OF NORTH AMERICAN SYRPHID^. 261 



Ceria abbreviata. 



Ceria abhreviata Loow, Centnr., v,48; s, 57, note. 



Habitat. — Xew Euglaud, Virgiuia, Florida ! 



<?, 9. Length, 10 to 11"™. Black. Face light yellow with a me- 

 dian black stripe, quite narrow in the male, broader in the female, run- 

 nino- from the antennal process to the oral margin ; cheeks broadly 

 shining black. Frontal triangle in male yellow, narrowly divided by 

 black in the middle, and separated from the yellow of the face by a 

 black stripe, running from the base of the antennal process to the eyes. 

 Eyes in male touch each other very slightly. Front in female bhick, 

 with four small rounded spots, two of which are just above the base of 

 the frontal process (sometimes obsolete), and one on each side near the 

 orbit. Antennal process slender, nearly as long as the first two joints 

 of the antenuie together, yellowish towards the base, more brownish on 

 the outer part ; first antennal joint but little longer than the second, 

 reddish on basal half, blackish on distal half 5 second joint black, yel- 

 lowish at tip ; third joint black, scarcely longer than the second ; style 

 short. Vertex light yellow, swollen, occiput and orbits on the sides 

 black. Thorax black; humeri, a small spot on side of dorsum, some- 

 times a vittula above the root of wings, a large vertical meso-pleural, 

 and a smaller, nearly contiguous sterno-pleural spot, and narrow border 

 of scutellum, yellow. Abdomen black; third segment nearly equal in 

 length to the first two ; first segment on the sides broadly, second seg- 

 ment with a broad posterior band; third and fourth with narrow poste- 

 rior bands, yellow. Legs in male chiefly black; base and tip of Iront 

 femora; base and apical third of middle and hind femora, middle tibi;e 

 and basal half of front and hind tibiae, and tarsi except the ternunal 

 joints, yellowish red; in the female the legs are chiefly reddish, ihe 

 base of femora, tip of tibioe, and tip of tarsi, more or less brownish. 

 Wings brown on anterior half, nearly hyaline behind, the costal coll. 

 The brown follows the spurious vein to the small cioss-vein and then 

 clouds the posterior border of the third vein to its tip. Third v< in 

 strongly angulated and with a stump of a vein. 



Three specimens, ^STew Haven, Conn., and one from Virginia (Mr. 

 Theo. Pergande). 



Ceria pictula. 



Ceria inctida Loew, Neue Beitrage, etc., i, 17. 



Habitat. — Southern States (Loew). 



$ , 9 . Length, 9™™. Head as in abbreviata; the thorax may show 

 an additionally yellow spot on the suture; the abdomen, in addition to 

 the posterior yellow margins, has on the second, third, and fourth seg- 

 ment^ each two yellow spots; the second segment is longer as in tritlcns ; 

 wings and legs similar, or somewhat darker. 



The ]iresent species has not been recognized since its description in 

 1853. The description by Loew is as follows: " Ganz von Korperbaue 

 der Ceria conopsoides und respiformi,-!, docli nocli kleiner als letztere, 



