^^(lJloch—Some Undesrrihed North American Sapromi/zidm . 
*)*) 
on nieso|)leuf;i and sternoplenra. Ai)(lonuMi shortin’ than thorax, dis¬ 
tinctly tapering posteriorly and keel-shaped ( tdg. S); the bristles con¬ 
spicuous on posterior margins ol‘ segments. Legs sh^int; all tibiae with 
strong preapical bristles, mid pair with d-d distinct a|iical spurs; hind 
femur with a series of bristles on apical third ot antero-ventral surface 
(Fig. 14); liind tibia without any noticeable hairing on ventral surface. 
Wing witli veins 3 and 4 parallel apically; last section of fourth about 
times as long as penultimate section; outer cross vein oblique, its upper 
extremity nearer to wing tip tbaii its lower. Length, 3.75-4.5 mm. 
Female .—Similar in size and coloration to the male. The abdomen is 
figured on the plate. Fig. 7. The hind femur has usually only two bristles 
in i)lace of the graduated row present in the male. 
Locality. —Quincy, Illinois, xVugust 12, 18<S(); swept on .sand bar (C. A. 
Hart). Paratypesand Allotypes: Same locality, August 14, 188h. Named 
in bonor of INIr. C. A. Hart wbo collected tbe species. 
Sapromyza cilifera sp. nov. 
(Fig. 15.) 
Male .—Entirely yellow, shining, only the head i)arts opaque. Wing 
clear, veins yellow; outer cross veins hardly more distinct than other 
veins, arista brown. Dorsum of abdomen slightly discolored, but prob¬ 
ably normally yellow. 
Frons about two-fifths the head width, bristling uormal; head in profile 
almost as in srniilata, the anterior bristle not so tar forward; arista long 
baired, but not plumose, the longest hairs being equal to rather less than 
half the width of the third antennal joint; marginal hairs on cheeks dis¬ 
tinct; cheek as in .similata. Mesonotum with 4 pairs of dorso-centrals, 
the anterior pair strong and well in front of suture; 2 rows of acrostichals 
present, the anterior 2-3 pairs weak; scutellum and pleura as in harti 
except that the bristles are rather weaker. Abdomen slightly longer than 
tborax; hypopygium very large and knob-like, in type specimen almost 
as long as remainder of abdomen; abdominal segments subequal; apical 
bristles moderately strong on the last 3 segments, weak on the anterior 3; 
surface of dorsal plate of hypopygium l>are on the basal half; scattered 
hairs present on apical half; the hairs are much longer on the plate 
which forms the ai)ical portion of the reversed surface of hypopygium ; 
last ventral segment of abdc^men with the lateral projections much the 
same shape as in tenuispina but mucb shorter; the rounded ventral 
lamellae of the hypopygium almost bare. Hind femur, on the po.stero- 
ventral surface, with a row of long, soft hairs of irregular length and not 
regularly arranged, one of which, near l>ase, is most consj)icuous, hind 
tibia as in Fig. 15; all tibiae with preapical bristle. Wings rather long 
and narrow; last .sections of veins 3—4 subparallel, last section of lointh 
vein about times as long as the penultimate section. Length, 3.5 nun. 
Type.—Frh-AWcX, Illinois, swept from box elder, Dlay 24, 1888 (C. A. 
Hart). I have not .seen a female of this species, which is represented 
in the Illinois State Laboratory of Natural History by tbe type speciiiKui 
oidy. 
