1916.] NATURAL SCIENCES OF PHILADELPHIA. 503 



bristles crosses the lobe with a smaller group on I be proximal margin 

 of the lobe; scutellum dark reddish brown, distinctly and rather 

 broadly light yellow medially, the sides of the sclerite also passing 

 into yellowish; postnotum brownish gray with an indistincl narrow 



brown median line. Pleura brownish yellow with a narrow brown 

 pleural stripe: the sternal region a little paler brown. Halteres 

 short, brown. Legs with the coxae light brown; trochanters dull 

 yellow; femora light brown, the apical quarter more yellowish and 

 enclosing a narrow brown subterminal annulus; tibia' dull brownish 

 yellow, the tips and the tarsi broken. Wings with the apical costal 

 portion dark brown, the basal costal portion and the caudal portions 

 of the membrane much paler, subhyaline; cells C and Sc with a few 

 scattered brown spots; a small white spot at the tip of Sci, at the tip 

 of Ri, and near the tips of R 2 and R 3 ; the hyaline areas of the wings 

 with a rather dense but pale pattern of small spots and blotches, 

 brownish in the radial field, passing into grayish on the caudal fields 

 of the wings. Venation (Plate XVII, fig. 35) cell 1st M 2 closed, the 

 outer deflection of M 3 and cross-vein m being present. 



Abdominal tergites brownish yellow with abundant long pale 

 hairs; sternites yellowish gray, indistinctly trivittate with brown, 

 the segments with abundant pale brown setigerous punctures. 



Habitat. — Southeastern United States. 



Holotype, cf, Jackson, Mississippi, August 8 (H. S. Barber). 



Type in the collection of the United States National Museum. 



Similar to E. costalis Alexander, 4 but the cell 1st M 2 closed and the 

 wing-pattern much heavier in the costal region. 



Erioptera (Empeda) nyctops sp. n. 



Pale yellow throughout; wings with Sc long; vein R 2 oblique; 

 cross-vein r present; cell 1st M 2 closed with the basal deflection of 

 Cui beneath it. 



Male. — Length, 3.8-3.9 mm.; wing, 4.3-4.4 mm. 



Female. — Length, 3.8-4 mm.; wing, 4.5-4.7 mm. 



Rostrum light yellow, palpi brown. Antennae with the scapal 

 segments pale yellow, the flagellum light brown. Head bright light 

 yellow. Eyes large, black. 



Mesonotal praescutum pale reddish yellow, unmarked, more 

 yellowish laterally; tuberculate pits pale, remote from the anterior 

 margin of the sclerite (as in Erioptera); remainder of the mesonotum 

 more shiny. Pleura light yellow. Halteres pale yellowish, the 



4 Proceedings of the United States National Museum, vol. 1 1. ]>. 511 (1913 , 



