1916.] NATURAL SCIENCES OF PHILADELPHIA. 503 
bristles crosses the lobe with a smaller group on the 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 indistinct 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 coxse light brown; trochanters dull 
yellow; femora light brown, the apical quarter more yellowish and 
enclosing a narrow brown subterminal annulus; tibiae 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-i and Rs', 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 XVtl, fig. 35) cell 1st M2 closed, th,e 
outer deflection of M^ and cross-vein vi 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. c'ostalis Alexander,"* but the cell 1st M. closed and the 
wdng-pattern much heavier in the costal region. 
y Erioptera (Empeda) nyctops sp. n. 
Pale yellow throughout; wings with Sc long; vein R2 oblique; 
cross-vein r present; cell 1st M2 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 prsescutum 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 
* Proceedings of the United States National Museum, vol. 44, p. 517 (1913). 
