TRICHOPTERA. Ins. 199 
Amur Laud, grammicus, p. Ixxviii. pi. lix., Amur Land, mucronatus, 
p. Ixxxiv. pi. lix., Switzerland. 
Apatania crymophila, id. I c. p. xliv. pi. Iv., N.W. Siberia, meridiana, 
ibid. pi. Iv., Pyrenees, eatoniana^ p. xlv. pi. Iv. Auvergne. 
Sericostomatidce. 
Rougemont, Pn. de. Note sur 1’ Helicopsyche sperata (McLachlan). 
Bull. Soc. Neuch. xii. pp. 29-38. 
Corrections to his former paper [c/. Zool, Rec. xvi. Ins. p. 204] ; notes 
on the supposed occurrence of Helicopsyche cases at Pissevache in Savoy 
[the Recorder saw these cases at Zurich in 1880, and believes them to be 
Lepidopterous] ; account of a fruitless journey in the Valais in search of 
cases ; and an abstract of Fritz Muller’s remarks on Brazilian species. 
The S. Brazilian cases of Helicopsyche [cf. Zool. Rec. xvi. Ins. p. 204] 
are again treated upon by Fritz Muller in Z. wiss. Zool. xxxv. pp. 65 & 
82, pi. iv. figs. 18-21, pi. V. figs. 36 & 37. 
Sericostoma tiniidum, Hag., is distinct from carinthiacumy McLach. ; 
McLach., Revision and Synopsis, Suppl. p. xlvii. pi. Iv. S. hamiferuniy 
McLach., is probably identical with galeatumy Rbr., id. 1. c. p. xlviii. 
GEcisnius monedula, Hg., redescribed ; id. 1. c. p. xlix. pi. Iv. 
Silo obscurus and incanus, Hg., belong to the genus LithaXy and are 
redescribed ; id. 1. c. pp. 1. & li. pi. Ivi. 
Silo duplex, Hg., redescribed ; id. 1. c. p. liii. pi. Ivi. 
Thremma, McLach., an amended description given ; id. 1. c. p. Ivii. 
Helicopsyche, a detailed redescription given, both of the genus and of 
II. sperata, McLach. ; id. 1. c. pp. Iviii.-lxii. pis. Ivi. & Ivii. 
New species : — 
Sericostoma indivisum, McLachlan, 1. c. p. xlviii., Pomerania. 
Schizopelex furcifera, id. ibid. pi. Iv., Pyrenees. 
Brachycentrus adoxus, id. 1. c. p. liv. pi. Ivi., Siberia. 
Micrasema gentile, id. 1. c. p. Ivi. pi. Ivi., N.W. Siberia. 
Thremma gallicum, id. 1. c. p. iviii. pi. ivii., Pyrenees and Auvergne. 
Leptoceridce. 
Berma and Bercxodes. These genera are removed here, and should pro- 
bably head the family; McLachlan, Revision and Synopsis, Suppl. 
pi. Ixiii. 
(Ecetis notata, Ramb., occurs in Yorkshire ; F. G. Binnie, Ent. M. M. 
xvii. p. 91. 
Very full details with figures of S. Brazilian species are given by 
Fritz Muller in Arch. Mus. R. Jan. iii. pp. 105-115, 127, & 76-82, 
Z. wiss. Zool. xxxv. pp. 53-64, pi. iv. figs. 7-15, pi. v. figs. 32-35. For the 
genus in which the perfect insect has the eyes of the $ large and con- 
tiguous {cf. Zool. Rec. xvi. Ins. p. 205] the generic term Marilia is pro- 
posed (p. 76), with two species, M. major and minor ; to a Setodes (or 
allied genus), the name S. gemma is given (p. 80); and for the form that 
lives in the water collecting at the base of the leaves of Bromeliacece 
