E. T. CRESSON, JR. 
59 
Louisiana: Cameron, VIII, 14 to 28, 1903, 3 cf, 1 9, [Ohio]. 
Synonomij . — I have seen specimens of this species which were 
determined by Coqnillett as Dichaeta carinata Loew, but these 
cannot be that species if Loew’s description is followed. The 
antennae here are entirely yellow and I have not seen any sug- 
gestions of infuscation. 
Notiphila furcata Coquillett PI. I, fijr. 6. 
1902. Dichaeta furcata Coquillett, Journ. N. Y. Ent. Soc., x, 182. 
?1853. Notiphila transversa Walker, Ins. Saund., i, 407. 
In this species the antennae are mostly black, especially the 
second joint. The male has the fifth abdominal segment at- 
tenuating into a long cylindrical tubercle, which bears on its apex 
the two stout bristles. 
I have examined the type of this species. 
Description. — Black; palpi, base of third antennal joint, knees, and tarsi 
tawny, (fore tarsi sometimes brownish); halteres whitish. Wings hyaline 
with pale veins. 
Opaque, cinereous to yellowish. Frons faintly vittate with black; orbits 
white. Face silvery to opaque black, depending upon the angle of vision. 
Mesonotum faintly and narrowly vittate with brown; mesopleura with brown 
spot. Bases of abdominal segments broadly subopaque brown, broadly di- 
lated and interrupted medianly except on fifth of male; also with brown 
dots at bases of the larger bristles; fifth segment of male shining black with a 
lateral cinereous spot. 
Frons convex, hardly broader than long, orbits parallel. Face nearlj' the 
width of vertex, more than twice as long as broad; carina weak, not visible 
in profile; bristles hair-like, in series extending to foveae. Cheeks narrow. 
Antennal spine distinct; arista with about ten hairs. Scutellurn long as broad 
and broadly truncate. Abdomen wuth fourth segment longest and broadest, 
having about ten, very long, submarginal bristles; segment five short, truncate 
with a subapical, dorsal, cyhndrical tubercle, nearly as long as the segment, 
bearing at its apex two long, stout bristles and on its lateral surfaces numerous 
long hairs. Second costal section of wings hardly twice as long as third. 
Length. — 4 to 5 mm. 
9 . Similar but face not so flat, with carina visible in profile. Fifth abdom- 
inal segment marked as fourth. 
Lectotype . — d' ; Biscayne Bay, Florida, (Mrs. Slosson), [U. S. 
N. M. No. 6640]. (Present selection.) 
Specimens Examined . — 7 cf, 12 9. 
Florida: Biscayne Bay, (Slosson), 3 cf, 2 9 , ]U. S. X. M.j. Lake Worth, 
(Slosson), 1 cf, 1 9, [U. S. N. M.]. St. Augustine, III. 15 to 20, 1 cf, 2 9, 
[H. X. M.]; 1 9, [A. X. S. P.]; Ill, 20, (U. of K. Lot 958), 2 9, [Ivans.]. 
TRANS. AM. ENT. SOC., XLIII. 
