Vorhies—Studies on the Trichoptera of Wisconsin. 667 
In the male the superior appendages are small, rounded, the 
apex very slightly excised beneath, fringed with hair. The in¬ 
termediate appendages are slender, turned outward, hook-like, 
inconspicuous. The inferior appendages are wide apart, the 
obtuse apex slightly upturned, hairy. 
Larva. —Length, 12-15 mm. Width, 2.5 mm. Abdomen in 
life clear white. Head and thorax varying considerably in gen¬ 
eral shade of color, from gray specimens on which darker mark¬ 
ings show plainly, to almost black ones on which the markings 
are barely visible. In light specimens the head darker than 
the pro- and mesothorax. Mandibles black. On the dark head 
a light band may be distinguished bordering the clypeus and 
extending along the posterior median suture: on the dark back¬ 
ground on either side of this Y-shaped light band may be dis¬ 
tinguished a row of darker spots consisting of short transverse 
bars anteriorly, and small round spots posteriorly: outside of 
these are several small irregularly placed spots. The prothorax 
has on the posterior half near the medial line a pair of diag¬ 
onally placed elongated blotches, apparently formed by the 
fusion of two spots: parallel to, but within and posterior to 
these lies another pair composed of three fused spots: on the 
posterior lateral corner of the segment are several small spots; 
the posterior edge bordered with black. On the mesothorax a 
pair of small round spots lies near the median line at about the 
junction of the first and middle thirds of the segment, and at 
the middle of the segment lies a pair of short transverse bars: 
a number of other spots on this segment show a general ten¬ 
dency to an arrangement on a double row extending from the 
outer anterior angle to the posterior border near the median 
line: others on the posterior outer corner in general lie parallel 
to these rows: posterior border black. Metanotum with three 
pairs of chitinous spots. Legs gray with black at joints of 
femora and tibia 1 . Small chitinous points along lateral line on 
segments 3-8. The gills are in groups of two or three, except 
toward the posterior end, where they are simple, Fig. 4. 
Pupa. —Length, 9 mm. Width, 2 mm. Antennae extending 
to the 9th segment. Color whitish. Dorsal spines, IV, 2. 
3 + 6-7. 3-4. 4, VII. Lateral line of gray hairs begins on 
