318 



5- FORCIPOMYIA AUREA, 11. sp. 



Female. — Yellow, opaque. Head yellow; flagellum of antennse 

 brownish ; proboscis and palpi brown. Mesonotum ochreous yellow on 

 disc, the surface almost entirely opaque and with slight grayish 

 pruinescence ; discal hairs golden yellow, with a few long brown setu- 

 lose hairs on anterior lateral angles and on lateral margins ; pleurae 

 pale yellow, reddish on central portions ; scutellum and postnotum 

 brownish yellow, the former with numerous yellow hairs intermixed 

 with longer brown ones. Abdomen pale yellow, each segment from the 

 second to the apex with a large brown spot on each side, leaving only 

 a narrow posterior margin and a fine dorso-central line of the yellow 

 color ; ventral surface yellow ; dorsal hairs yellowish brown, a patch 

 of short golden yellow hairs on posterior lateral margins of ven- 

 tral segments. Legs golden yellow, apices of hind femora slightly 

 browned; surface hairs yellow. Wings clear, appearing grayish owing 

 to the dense coating of brown surface hairs, veins brown ; no patch of 

 pale hairs at apex of third vein ; base of wing yellowish. 



Eyes contiguous; antennae almost the same as in cilipes. Basal 

 joint of hind tarsus about a fourth shorter than second; fifth slightly 

 shorter than fourth ; surface hairs strong but not very long, the longest 

 not exceeding one and a half times the tibial diameter. Third vein to 

 middle of wing; venation as in spcciilaris. 



Length, 1.75 mm. 

 Type locality, Momence, III, July 17, 19 14, at light (C. A. Hart). 



A male taken at the same time and place as the female probably 

 belongs to this species. It differs from the female in being much darker 

 in color, in this resembling very closely the male of pergandei next de- 

 scribed. The apical four antennal joints are represented in Figure 7, 

 Plate XXI. The basal joint of the hind tarsus is one fifth shorter than 

 the second. The wings are as in the female except that they are com- 

 paratively narrower. Hypopygium as in Figure 2, Plate XXI. 

 Length, 2.5 mm. 



A male taken by the writer at Centerville, 111., August 17, 19 14, 

 has the abdomen marked as in the female described above, and the 

 hind tibiae brown with the exception of the apices. The apices of the 

 hind femora are blackened. In other respects it agrees with the male 

 taken with the type, from which the drawings were made. 



Early stages undescribed. 



