80 Mr. R. M‘Lachlan’s Monograph of the 
hairs ; labial palpi with a short basal joint, second and third joints 
equal, long and cylindrical. Maxillary palpi in the female with 
the two basal joints very short, third and terminal joints long and 
equal, fourth joint also long but rather shorter than the third; 
labial palpismaller than in the male. Prothorax small and hairy. 
Mesothorax somewhat cordate. Anterior wings rather broad, 
with the apex obtusely rounded, hairy clothing dense; radius 
not bent before the termination ; discoidal cell long and narrow, 
closed ; just above the anal angle in both sexes there is a small 
circular space always without hairy clothing, formed by the sudden 
arching of one of the branches of the ramus thyrifer. Posterior 
wings shorter than the anterior and less densely clothed; dis- 
coidal cell open ; a single transverse vein connecting the lower 
branch of the ramus discoidalis with the ramus subdiscoidalis. 
Legs short, nearly spineless; anterior tibize with two short, 
nearly equa}, apical spurs; intermediate and posterior tibiz each 
with two pairs of long equal spurs. Abdomen moderately 
robust ; appendices complicated ; in the male there are long finger- 
shaped app. sup., large app. inf., and fine app. intermed., with 
a long exserted penis; ventral surface of the antepenultimate 
segment furnished with a transverse row of spines. In the female 
there are two long hairy superior valves. 
Larve inhabiting running streams and canals. The anterior 
angles of the pro- and meso-nota prolonged in front. (See Pl. II. 
fig. 13.) Case moveable, broad and flattened beneath, formed of 
small stones with larger angular fragments placed along either side. 
During the larva state the tail-end has a membrane closing over 
the opening, with only a very small central hole allowing a free 
circulation of the water. Professor Westwood has remarked that 
eases of this kind are furnished with a grating at each end during 
the pupa state. 
1. Goéra flavipes, Curtis. 
(Pl. II. fig. 3, larva; fig. 30, case; Pl. V. fig. 2, neuration ; 
Pl. XI. figs. 22, 23, app.) 
Silo flavipes, Curt. (*) Ent. Mag. vol. i. p. 189, 4 (1833); 
Goéra flavipes, Curt. (*) Phil. Mag. p. 215, 4; Steph. (*) 
Ill. p. 197, 2; Trichostoma capillatum, Pict. (*) Recherch. p. 
173, 1, pl. 13, fig. 8 (1834); Brauer, Neurop. Aust. p. 43; 
Spathodopteryx capillata, Kol. Gen. et Spec. Trichop. pt. 1, 
p- 95, 1; Goéra capillata, Hag. (*) Ent. Ann, 1859, p. 102, 
45; Trichostoma fuscicorne, Pict. (*) Recherch. p. 174, 38, 
pl. 13, fig. 10 (1834), according to the type; Goéra fusci- 
