443 
ZOOLOGICAL LITERATURE . 
nohilis (Wlj.^zrzdecipiens (Kol.) j L. {Chcstotaulius) striola (Kol.) is a British 
species j Apatania vestita (M‘L.) is -not ' vestita (Kol.), M^Lachlan names it 
muliebris {1. 0 , A) ) Mormonia {Helictomerus) basalis (JLol.) z=Lasiocephala 
taurus (Costa) ; Mystacides ferruginea (E. Piet.), prohably= Setodes reducta 
(M‘L.) ; Hydropsyche fidvipes (Curt.) is distinct from angustipemis (Ourt.)j 
JI. ophthahnica (Ramb.) $ has small eyes. 
Meyer (Stett. ent. Zeit. 18G7, pp. 163-169) publishes an account of the 
species of this family found in Westphalia. He details his experience in 
rearing these insects Rom their larvas, and mentions {1. c. p^ 166) several in-^ 
stances of the copulation of the sexes of different species with production of 
fertile ova. The number of species enumerated is 45, of which 4 (2 Poly- 
emtropus, a Mystacides, and a Setodes) are undetermined, and have their di- 
stinctive characters briefly indicated. Most of the species were bred by the 
author from their larvae, and he appends notes on the characters of the latter 
and of their cases. 
0. S. Tomes (Quart. Journ. Micr. Sci. xv. pp. 248-251) describes the larva 
of a small Trichopterous insect, probably belonging to Hydroptila, found by 
him in a pond at Hampstead, inhabiting a silky case enveloped in an outer 
layer of concentrically arranged filaments of Conferva. The larva, with its 
case and details of its structure, is welj figured, 1. c. pi. 9. 
A. E. Eaton indicates the means of identifying the pupae and pupa-skins 
of insects of this group. Ann. & Mag. N. H. 3rd ser. xx. p. 384. 
Eaton (Ann, ^ Mag. N. II. 3rd ser. xix. p. 398) notices some peculiarities 
ill the venation of a $ AnaboUa nervosa (Curt.) and the occurrence of Silo 
fumipennis (M^Lachl.) near Cambridge. He also describes the pupa-skin of 
JBrachycentrus subnubilus (Curt.), and figures its mandibles and anal setae 
(/. c. p. 399). 
Neuronia clathrata (Kolen.) captured in Britain. M^Lachlan, Proc, Ent- 
Soc. 1867, p. cviii. 
E. Gedge records an instance of renewed copulation in a pair of Chceto- 
pteryx tuberetdosa. Ent. M. Mag. iii. p. 204. 
Ilydroptila. The habits of the larvae of a species of this genus {II. pul- 
chricornis ?) are noticed by M^Lachlan. These larvae remain suspended at 
midwater by a thread. Ent. M. Mag. iv. p. 17. 
Lwinephilus striola (Kolen,). A gynandromorphous specimen noticed by 
M'Lachlan. Proc. Ent. Soc. 1867, p. xeix. 
M‘Lachlan notices the occurrence of 2 species of Stenophylax, with an 
Ichneumon (Paniscus), in ice-caves in the Alps. Proc. Ent. Soc. 1866, 
p. no. 
New genera : — 
Potamorites, g. n., M^Lachlan, Stett. ent. Zeit. 1867, p. 64. Allied to 
Chcetopteryx ; max. palpi smooth j ocelli present j anterior wings narrow, 
obliq^uely truncate at apex, sparsely clothed with hairs j calcaria 1, 2, 2. 
Sp. P. biguttatus (picX.)=iHnoicyla limnophiloides (Brauer)j H. frauetifeldii 
(Brauer), &c. 
Cryptotkrix, g. n., M^Lachlan, 1. c. p. 66. Allied to Chcetopteryx j penulti- 
mate joint of max. palpi slightly dilated and truncate at apex j anterior 
wings long and narrow, obtusely rounded, 'with a very dense pubescence, 
radius a little indexed at apex, djscoidal cell long, closed j posterior wings 
