1909] DOANE — TIPULA ily 
MORE TIPULA WITH VESTIGIAL WINGS. 
BY R. W. DOANE, STANFORD UNIVERSITY, CAL. 
SINCE sending in the manuscript for the article on ‘““A New Species of Tipula 
with Vestigial Wings,” Psyche, Vol. XV, No. 3, three other species which have the 
wings more or less reduced have come to me. In one of them, 7. quayliz, the wings 
are reduced to mere pads in both sexes. In another, T. si/vestra the wings of the 
2 (So unknown) are about like those of the 2 of T. vestigipennis. In T. williamsii 
the wings of the 2 are reduced to about 4 the size of those of the co’ which are normal. 
The three species here described together with T’. simplex and T. vestigipennis make 
an interesting series. . 
Tipula williamsii n. sp. Brownish yellow; head yellowish brown, darker above, 
with a more or less distinct darker line in the middle; rostrum, first segment of palpi 
and first three segments of antennae yellow; second segment of palpi from yellow 
to brownish, others dark brown; segments of antennae beyond the third dark brown, 
black at the base; thorax brownish or grayish yellow; dorsal stripes brown, rather 
broad, the median one divided; scutellum, metanotum and pleura hoary; halters 
brownish, yellow at the base, knobs brown; legs brownish yellow; tarsi and the 
tips of the femora and tibia brown; abdomen brownish, more yellowish at the base, 
with darker dorsal and lateral stripes; posterior margin of the 8th sternite in the 
male somewhat crescent shaped, with two median tufts of rather long yellow hairs, 
lateral margin with sub-triangular membranous appendages from the posterior margin 
and the tips of which arise shorter yellow hairs, those at the tip being longest; just 
above the base of the median yellow tufts and usually hidden by them is a short, 
triangular, reddish, hairy, membranous appendage; posterior margin of 9th tergite 
somewhat crescent shaped, very slightly serrate and with a median pair of thin plates 
which are twisted in such a way that their edges are uppermost; 9th sternite almost 
divided by a deep narrow ‘U’ shaped incision; pleural suture complete, setting off 
the two sub-triangular sub-dorsal pleura; three pairs of apical, spatulate appendages, 
the 2nd largest and united at the base with the 3rd; ovipositor brownish, valves red- 
dish; upper valves of moderate length, acute very slightly arcuated; lower valves 
acute reaching beyond the middle of the upper valves; wings hyaline with a smoky 
tinge and with a slight yellowish tinge along the anterior margin, a whitish band 
extending from in front of the stigma across the discal cell into the 4th posterior cell; 
a whitish spot beyond the stigma, stigma brownish; wings of 2 but little more than 
