W. G. DIETZ 
251 
Head, rostrum and jialjii, dark fuscous; a grayish margin along the orbits. 
-Viitennae long and slender, extended backward, they reach to about the 
middle of the abdomen; scapal joints short, not paler; basal flagellar seg- 
ments about three times as long as thick, outer segments at least twice the 
length of their thickness; pubescence whitish, dense and evenly distributed; 
very few, but long, verticellar setae. Thorax brownish, \Hth pale polli- 
nosity and some luster; a shari)ly defined, rather broad, very shining, darker 
median stripe present. Pleura grayish-brown, jwllinose. Halters i)ale, club 
ilark fuscous apically. Legs sordid yellow; anterior femora browai, except at 
Imse; outer half of middle femora, and apical part of posterior femora, brown- 
ish. Pubescence dense, and rather coarse. Wings grayish, unicolorous; veins 
brown; pubescence fine and evcidy distributed. Ab<lomen brown, pihjsity 
long, scattered. Hypotiygium yellow^, hairy; upper aj)i)endages blackisli, 
short, claw-like. 
llulofijpe. — cf ; Hazleton, Pennsylvania. August (i, 1920. 
Distinguished from paupera, by the unicolorous and more 
strongly elongated antennae. 
Cicnus ULOMORPHA ( )sfen-Sacken 
(llitniorplid Osten-Sacken, IMon. X. A. Dipt., iv, p. 232. 
Ulomorpha pilosella Osten-Sacken, Proc. .Vcad. Nat. Sci. Phila., ISo'J, 
p. 211, (Linuiophild); Mon. X. A. Dipt., iv, p. 233, ISbt). 
X"ot rare. IMay to September. 
Oenus ADELPHOMYIA Bcn-groth 
Adclpliompid Bergroth, IMittheil. Xaturfor. Oes. Bern., bS'.X), p. 131. 
Adelphomyia minuta Alexander, Can. Ent., xliii, p. 2<S7, P.Hl. 
Plentiful in a small, swampy locality, May 20, 1919, also, St- 
.lolms, Alay 28, 1920. X"ot taken before. 
Adelphomyia i>lcuralis spec. nov. 
CeiK'ral coloration |•eddish-brown. ('ell .M ' present., cros.s-vem r aijsent; 
wing ]mb('S(!en(^e distinct. Plcmra with fuscous stri])es. 
Male, length, 2.o mm.; wing, 3.7 mm. 
Head, ro.strum and mouthparts dark fuscous; occiput, dark gray with w hitc 
periorbital line. Antennae, with the excej)tion of the second joint, bi'own, 
the latter blackish; verticels strongly marked, pul)e.scence short, pale, d'horax 
brownish-yellow, slightly pollinose, with some luster above; antero-laU'ral 
margin paler. Pleura ])aler, wdiitish pollinose; a dark fu.scous, obli(|ue line 
from the pronotum aenjss the mesosternum; another fuscous line, parallel 
with the former, along the base of the coxae. Haltcu-s .jjale throughout. 
L(‘gs yellow; femora infuscate at the apex; tarsi .scarcely darker; i)ilosity 
TKAX-S. AJl. EX'T. SOC., XLVII. 
