666 Wisconsin Academy of Sciences, Arts and Letters. 
fish. I have had two small fish skeletons beautifully cleaned 
by these larvae. 
The pupal cases are usually found attached to logs and sticks, 
especially such as are rough and uneven, in May and June. 
Pupal life in the laboratory lasts about two weeks. The imagos 
appear in June and July. 
(Pl. LI I, Fig. 7. PJ. TV, Figs. 3-8.) 
Limnephilus submonilifer Walker. 
Limnephilus submonilifer Walker, Cat. Heur. Brit. Mus., 1852, 
33. TIagen, Syn. jNeur. X. Am., 1861, 260. McLachlan, 
Ent. Ann, 1863, 157. Banks, Cat. Heur. Ins. U. S., 1907, 
37. Ulmer, Gen. Insectorum, Fasc. 60, 1907, 44. 
Limnephilus pudicus Hagen, Syn. Ueur. X. Am., 1861, 262 ; 
Proc. Host. Soc. Hat. Hist., XV, 1861, 295. Ulmer, Gen. 
Insectorum, Fasc. 60, 1907, 44. 
Imago .—Length of body, 8-11 mm. Expanse, 21-27 mm. 
The two specimens giving the extreme measurements are both 
females. Antennse black, the basal portion narrowly annulated 
with fuscous, basal joint with a little gray hair. Palpi fus¬ 
cous. Head and thorax fuscous, the head clothed with sparse, 
gray pubescence, and long, coarse, black hairs; a pair of trans¬ 
verse warts posteriorly. A pair of large warts on the pronotum 
similarly clothed. On the mesonotum, a longitudinal ridge on 
either side of an impressed median line, a median posterior 
area, and the wing callosites, all with black hair; a minute 
pencil of gray or white hair at the posterior median point of 
the segment. Abdomen fuscous. Legs brownish-testaceous, the 
feet darker, spotted with black. Spurs brown, spines black. 
Anterior wings brownish-gray with numerous small irrorations: 
a much broken fuscous line along the radius, ending in a large 
irregular spot at the pterostigma: a less broken, fuscous band 
along the cubitus, another along the inner margin to the arculus: 
a light, semi-hyaline, rhomboidal area near the middle of the 
wing, extending obliquely forward and outward: veins fuscous, 
often with lighter interruptions. Posterior wings grayish- 
hyaline, iridescent, darker at the tips. 
