British Species of Caddis-flies. 117 
short ; anterior tibiae with one apical spur (two in some species) ; 
intermediate and posterior tibia each with one pair of apical 
spurs. Abdomen thin, Appendices complicated, varying greatly 
according to the species. The female generally larger than the 
male, 
Larva similar to that of Leptocerus, inhabiting standing and 
running waters. Case a cylindrical tube, smaller at one end, com- 
posed of fine sand or entirely of silk. 
This genus probably stands in need of subdivision, as some of 
the species are rather discordant. 
According to the neuration, we may divide it into two sections, 
and again I must ask the student to refer to the figures. (See 
Pl. VI. fig. 6; Pl. VII. fig. 1.) 
A. Upper branch of the ramus thyrifer in the anterior mings 
simple. 
1. Setodes ochracea, Curtis. 
(Pl. VI. fig. 6, neuration and maxillary palpus.) 
Leptocerus ochraceus, Curt. (*) Brit. Ent. vol. 2, fol. 57 (1825); 
Steph. (*) Ill. p. 195, 1; Phryganea hectica, Zett. Ins. 
Lapp. col. 1072, 48 (1840) ; Mystacides hecticus, Kol. Gen. 
et Spec. Trichop. pt. 2, p. 251, 3, pl. 5, fig. 54; Mystacida 
obsoleta, Ramb. Hist. Nat. Névrop. p. 509, 4 (1842) ; Phry- 
ganea pilosa, Mill. Zool, Dan. p. 145, 1761 (1776) ?; Mys- 
tacides pilosus, Brauer, Neurop. Aust. p. 41; Leptocerus 
pilosus, Hag. (*) Ent. Ann. 1860, p. 74, 70. 
Antenne pale ochreous, the articulations marked above with 
brown at the sutures. Palpi greyish-ochreous. Head and tho- 
rax testaceous. Anterior wings ochreous, the cilia at the anal 
angle greyish; neuration prominent, the three transverse veins 
forming the anastomosis placed in a slightly oblique line. Poste- 
rior wings whitish, subhyaline. Legs pale ochreous ; the anterior 
tibiae with one very minute apical spur. Abdomen testaceous. 
Expanse of fore-wings 10 —13 lines. 
Occurs not uncommonly in summer about ponds and other 
standing waters, such as those in the parks of London. It is an 
elegant species and cannot well be confounded with any other. 
The figure in Curtis’ British Entomology is good but rather too 
darkly coloured. 
2. Setodes intaminata, n. sp. 
Antenne whitish-ochreous. Head dark brown, clothed with 
ochreous pubescence. Eyes intensely black. Palpi greyish- 
