380 
ZOOLOGICAL LITERATURE. 
p. 292) ; Halesus is divisible into 3 genera (/. c. p. 292) ; Molannodes zdlerx 
(M‘L.) occurs in SmSland (/. c. p. 298) ; Rhyacophila, the characters pre- 
sented by the anal appendages in the European species, of which 16 are re- 
corded, are described and illustrated (I. c. pp, 304-307, pi. 14. figs. 9-17). 
Hagen (Stett. ent.Zeit.18G8, pp. 61-G4) publishes descriptions of the species 
of Stephens’s genus Rercea^ of which he recognizes 6, namely ; 1. B. melas 
(Pict.)j 2. B.7naurus{WL.)) 3. B. barhata {Viai.)) 4. B.articularis{V\ci.y, 
6. B. minuta (Kolen.). B. pullata (M‘L.), 2'hyapygmcca(Ovui.)^Nais ater- 
idma (Brauer), Rhyacophila penicillus (Piet.), and R. nigt'ocincta (Piet.) are 
referred with more or less certainty to B. Qiielas. B. minuta probably = P. 
minuta (Linn.); P. 7ninuta (Fab.) is probably 'an Hydroptila. B. alhiptes, 
marshamella and pygmeea (Steph.) are unknown to the author. Hagen 
thinks that P. funerea (Vill.) belongs to Bercea^ and remarks that, if so, 
Geoffi'oy has given the only extant description of the larva and case of a 
species of this genus. 
MacLachlan publishes (Journ. Linn. Soc. Zool. x. pp. 19G-214) some 
descriptions of new genera and species belonging to this group, and a list of 
the known species from New Zealand. The latter are only 20 in number. 
He notices 3 heliciform cases from New Zealand, which he conjectures may 
be formed by species of Pycnocentria (1. c. pp. 200, 201). A new gTouping 
of the species of Pulycentrojms is given, 1. c. p. 205. 
Pmychomyia. Hagen (Stett, ent. Zeit. 18G8, pp. 269-2GG) describes the 
species of this genus, of which ho admits the following : — P. aimulicornis 
(Piet.), P. phceopa (Steph.), P. reducta (Hag.), and P. fragilis (Piet.). 
Cyimus urbanus (Steph.) is a Psychoinyia. P, phceopa (Hag. Ent. Ann. 1861) 
— P. fragilis^ P. 677mm (Hag. ibid.) = awww/7corw7s, Tinodes pusillus (Kolen.) 
=.phceopa. 
Dasy stoma. Hagen (/. c. pp. 267-273) publishes a monographic revision 
of the species of this genus, which he characterizes in detail. He admits 
8 species, 3 of which are described as new. The known species are ; — D. 
maculatum (Piet.), H. togatum (Hag.), D. setifermn (Piet.), I), nigrum 
(Brauer), and D. microcephalu?n (Piet.). The species are tabulated, 1. c. 
p. 273. 
Monocenti'a lepidoptei'a (Ramb.). MacLachlan (Ann. Soc. Ent. Fr. 4®viii. 
pp. 749-752) describes this species from the inspection of Rambur’s type 
and of other specimens. The genus is allied to Halesus, but is distinguished 
from this and all other genera of the Linmephilides by the scaly covering 
of the wings. The posterior wings have a long and deep pouch, filled with 
scales stronger than the rest. The spurs are 1.3.3. M‘Lachlan figures the 
anterior wing, an ordinary hair and a scale, the maxillary palpus, and the 
terminal segment of the abdomen in three positions, with separate figures of 
its appendages (pi. 12. figs. 7-13). 
MacLachlan figures (Journ. Linn. Soc. Zool. x. pi. 2. fig. 1) the neura- 
tion of (Econesus inaori (M‘L.), and also (/. c. fig. 6) the anal appendages of 
Notanatoliea cognata (M‘L.). 
Neuronia clathrata (Kol.). The occurrence of this species' in Britain is 
noted by J. Chappell and M‘Lachlan (Ihit. M. Mag. iv. pp. 204, 205). Stc- 
nophylax alpestris (Kol.) has also been taken by Chappell and identified by 
MacLachlan (7 c. p. 205). 
Enoicyla pusilla (Burm.). MacLachlan records the occurrence of larvD3 
