Vorhies—Studies on the Trichoptera of Wisconsin. 673 
luteous hair; a pair along the posterior side of the eyes, the 
wing callosities, and the outer ends of the pronotal warts, with 
black hairs; a small group of fuscous hairs beneath the anten¬ 
nas anterior to the eyes. Legs brownish-yellow with black 
spines; coxae of the posterior two pairs fuscous, tarsi fuscescent, 
spurs luteous. Anterior wings longitudinally vittate with fus¬ 
cous, yellowish, and white stripes, a with a silky white diseal 
stripe which is interrupted beyond the middle, dilated and ir¬ 
regular towards the tip.” (Walker, 1852.)This stripe, if an¬ 
alyzed, is seen to consist of a narrow whitish stripe between 
the sector and media, and, separated from this by a fuscous an¬ 
astomosis, live whitish stripes in the apical cellules as follows: 
in the bases of the 3rd and 4th, a stripe 1-3 to 1-2 the length 
of the cells; in the 2nd and 5th, a stripe the full length; in the 
base of the 6th cell, a short stripe or spot; the whole margined 
with darker. There is a small whitish spot at the thyridium, 
and a trace of one at the arculus. Between the lower branch 
of the media and the anal vein is a lighter area, the latter vein 
conspicuously darker. Anterior edge of the wing to radius 
lighter; discoidal cell usually somewhat lighter, with a dark 
median stripe. There is a cross-vein between the subcosta and 
radius near the end of the former, which appears to turn up to 
the costal margin rather abruptly after the cross-vein, hut is 
weak and difficult to see in that part. Cross-veins on the basal 
cells are absent in this species. Discoidal cell in each wing 
more than 1.5 times as long as its stalk. Posterior wings nearly 
hyaline, grayish-luteous at the apex. 
The last dorsal segment of the male is beset with short black 
setee, thicker on either side of the median line. Superior ap¬ 
pendages large, sloping down from above, straight beneath, the 
intermediate appendages lying between them, curving strongly 
upward. Inferior appendages pointing strongly upward, nar¬ 
row but not pointed at the tips, widely separated throughout. 
Penis bifid, as seen from the rear; sheaths very complex, con¬ 
sisting of a group of heavy bristles, part of which lie alongside 
the penis, the others turning upward and outward. The figure 
(Fig. 23, Pl. LV) offers the best description here. 
