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REPORT ON ZOOLOGY, MDCCCXLll: 
4. Perla ; the terminal part of the sub-marginal space has no transverse 
nerves, and the branch of the under rib without ramifications, or with 
one or two regular bifurcations ; the marginal cell, at the point, has at 
least two transverse nerves : P. hipunctata, marginata, and in all forty- 
two species, which are divided into seven groups, chiefly according to 
colour. — 5. Chloroperla, Newm. ; differs from Perla in the marginal cell 
at the end being without transverse nerves, or only having a single one : 
P. virescens, Piet. ; rufescens, venosa, Steph. ; and three new European 
and three exotic species. — 6. Isopteryx ; small species ; almost wanting 
the anal space of the posterior wings : P. Jiava, Fourcr. ; apicalisy Newm. ; 
and in all seven species. 
V. Capnia. — Filiform palpi, long anal setas ; with two sub-genera : — 
1. Capnia ; without transverse nerves at the end of the wings : P. nigra, 
Piet. ; Sembl. pygmeea, Burm. ; and one new species. — 2. Gripopteryx ; 
with numerous transverse nerves at the end of the wings : Sembl. gra- 
cilis, Burm., and one new species, from Brazil. 
VI. Nemoura. — Filiform palpi, small or rudimentary anal setas ; 
with three sub-genera : — 1. Tcenopteryx ; antennal joints of equal size, 
rudimentary 3-jointed anal setae ; N. nebulosa {Phryg. neb., Lin.), tri- 
fasciata, Piet. ; in all six species. — 2. Leuctra, Steph. ; second tarsal 
joint very short ; scarcely any anal setae ; wings narrow, rolled together, 
so as to be semi-tubular ; N. cylindrica, De Geer, &c. ; in all, seven 
species. — 3. Nemoura ; wings usually lying flat, the nerves of the para- 
stigma forming an which is not the case in Leuctra, with which this 
sub-genus agrees in its other characters : N. variegata, cinerea, 01. ; in 
all, eight species. All those species are figured which are known to the 
author from personal observation. 
Lepismen(x. — Gervais (Ann. d. 1. Soc. Ent. d. Fr. xi. p. 47) has 
published a new genus under the name of Nicoletia, having an oblong 
somewhat compressed scaleless body; thorax scarcely so broad as the 
abdomen, the three segments pretty equal ; three moderately long setae 
at the extremity of the abdomen ; the branchial legs on the abdomen very 
distinct. N. geophila and phytopJiila ; the one found in hot houses, the 
other in the woods around Paris. 
NEUEOPTERA. 
Loew has published some excellent observations on the anatomical 
relations of the Neuroptera, as at present limited. (Germar’s Zeitschr^ 
iv. p. 423.) 
The insects formerly referred to Neuroptera, with incomplete meta- 
morphosis, which I have united to the Orthoptera, also agree, in their 
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