60 Annals Entomological Society of America [Vol. V, 
broad, membranous portion, posterior margin with a broad, shallow 
U-shaped incision in which hangs a pair of tumid, yellow, hairy append- 
ages; pleural suture complete; first pair of appendages brown, furnished 
with brown hairs, long, gently curved near the middle, tip rounded; 
second pair broad, more strongly chitinized, ending in two strong, blunt 
points; third pair closely joined to the second, quadrate, yellow, less 
strongly chitinized; wings hyaline with a faint brownish tinge; the stigma 
and faint spots over the tip of the subcostal vein and the origin of the 
prefurca, brown; the whitish band beginning in front of the stigma 
extending across the discal cell into the base of the fourth posterior cell. 
Length 15 mm., wing 17 mm. 
Habitats San Dieco:.Cal. 6) males: 
Tipula flavocauda n. sp. 
Brown; head yellowish brown, cinereous above; palpi yellow, last 
segment brown; first three segments of antenne yellow, others brown, 
darker at the base; dorsum of thorax gray with four brown lines; scutel- 
lum, metanotum, pleura and coxe grayish pruinose; halteres yellow, 
knobs brown; legs yellow, tibia and tarsi darker; abdomen yellowish 
brown with three broad, brown stripes; posterior margin of eighth 
tergite with a median tuft of short, light yellow hairs between a pair of 
irregular-shaped, six-sided, box-like appendages which, when folded in 
place, show only one of the broadly triangular surfaces; ninth tergite 
brown, posterior and lateral margins yellow; posterior-lateral angles 
produced into two broad, truncate projections each bearing on its 
ventral side a short, sharp, triangular tooth; between the lateral projec- 
tions and separated from them by small rounded incisions is a median 
pair of short, sharp-pointed, broadly triangular projections; posterior 
margin of ninth sternite with a rounded incision from the membranous 
middle portion of which arises a pair of rather prominent, strongly 
chitinized, horn-like projections; above these, usually concealed by the 
pleural appendages, is a group of four other chitinous appendages, the 
lateral pair long, slender, sharp-pointed and bent at right angles near 
the center, the upper member of the group is strong and beak-like, the 
lower member weak, slender and hooked at the tip; in the lateral margins 
of the incision, just below the pleural sutures is a pair of very short, 
yellow, tumid appendages the tips of which are furnished with yellow 
hairs; pleural sutures complete, posterior margin of pleura with a short 
triangular tooth; upper pair of appendages slender, whitish with many 
brown hairs; second pair brown, flat, ending in a sharp, heavy, black, 
triangular point; third pair closely united to the second, consisting of 
two lobes the anterior one sharp-pointed, the posterior one truncate; 
upper valves of ovipositor long, tips rounded and slightly curved 
upward; lower valves weakly chitinized, short, reaching only to the base 
of the upper valves; wings hyaline, costal and subcostal cells, the stigma. 
and the veins brown. Length 16 mm., female 20 mm., wing 17 mm. 
Habitat: San Diego, Cal. 3 males, 3 females. 
