Vorhies—Studies on the Tnchoptera of Wisconsin. 661 
is abundant in May. I have not succeeded in capturing the 
adults in the open, but have reared a large number in the lab¬ 
oratory in June. Several were kept in a cage for some time- 
in an attempt to obtain the eggs, but without results. 
(PL LII, Fig. 1. PI. LIY, Figs. 7-17.) 
LLMHEPHLLLDZE. 
Limnephilus rhombicus Linn. 
Phryganea rhombica Linnaeus, Faun. Suec., Ed. 1, 1746, 224; 
Syst. Hat., Ed. xii, 1767, 909. Pictet, Pecherch., 1834, 
148. 
Chaetotaulius rhombicus Kolenati, Gen. et Sp. Trich., Pt. 1, 
1848, 45. Hagen, Ent. Ann., 1859, 76. 
Limnephilus rhombicus Leach, Ed. Encyclopedia, IX, 1815, 
136. Walker, Cat, Heur. Brit. Mus., Pt. 1, 1852, 22. 
Hagen, Syn. Heur. H. Am., 1861, 255; Yerh. zool.-bot. 
Ges. Wien, Yol. 14, 1864, 839. McLaehlan, Bev. and Syn.,. 
1875, 48. Wallengren, Kongl. Svenska Yet. Ak. Handl.,. 
Yol. 24, 1891, 41. Struck, Ill. Ztschr. f. Ent., IY, 1899, 
Fig. 33; Has Museum zu Liibeck, Festschrift, 1900, 265;. 
Mitt. Geogr. Ges. u. Hat. Mus., Heft 17, 1903, 36. Silf- 
venius, Acta S'oc. pro Fauna et Flora Fennica, 21, Ho. 4, 
43. Ulmer., Allg. Ztschr. f. Ent., YI, 1901, 224; Stett. 
Ent. Zeit., 1903, 197; Coll. Selys, Fasc. YI, 1907, 17; Gem 
Insectorum, Fasc. 60, 1907, 41. 
Imago .—“Head and thorax reddish, antennas and palpi 
paler; hairs golden, sparse. Legs reddish-testaceous, spines 
black. Abdomen above fuscescent or fusco-ochreous, beneath 
paler, and in life somewhat greenish. Anterior wings rather 
broad, considerably dilated in the apical portion, the margin of 
which is truncate; somewhat shining; the ground-color varies 
from straw-yellow to testaceous, the dorsal portion often darker; 
the fenestrate spot broad, oblique, varying from irregularly oval 
to rhomboidal, on each side of it there is usually (but not al¬ 
ways) a dark brown or fuscous mark, that internally being' 
longitudinally cuneiform, that externally more regular and 
