114 Mr. R. McLachlan on some new Species of Neuropterous Insects 
brownish: anterior wings short, somewhat rounded at the apex, hya- 
line, areolets few and large, pterostigma brown, longitudinal veins pale 
green, all the transverse costal veins, a few towards the base and apex, 
and the marginal forks internally (and in part externally) black, the 
others clouded with grey ; posterior wings with a greenish pterostigma, 
only the transverse costal veins black. 
A neat and characteristic species of this gigantic genus, which 
seems to spread itself, with scarcely any modifications, over the whole 
world*. 
Psycuorsis, Newman. 
P. insolens. (Pl. VI. fig. 3.) 
P. pallide ochracea, pilosissima; antennis pedibusque albido-ochraceis ; 
oculis nigris: alis anticis subhyalinis fulvo pilosis, maculis numerosis 
* In the ‘Annales de la Société Entomologique de France,’ sér. 4, tom. ii. 
trimestre 3 (1862), is a memoir by M. Girard, in which are described two new 
species of Chrysopa from New Caledonia, under the names of Hemerobius chlo- 
romelus and H. stigma of Montrouzier. The retention of the generic term 
Hemerobius for these insects is opposed to the ideas of almost all modern writers 
on the subject, excepting M. Rambur. This name is now usually only applied 
to those small insects to which Rambur applied the name Mucropalpus, of which 
H. Humuli may be taken as the type. 
This memoir is full of interesting details on the venation of the wings, with 
the opinions of the various authors who have made these insects their study ; 
but it seems strange that no mention whatever is made of the most comprehen- 
sive monograph of the genus yet published, viz. ‘Schneider’s Symbolx ad 
Monographiam generis Chrysope, Leach,’ 1851, in which the neuration of the 
wings has received the author’s especial attention. In M. Girard’s arrangement 
of the nervures the subcostal nervure is described as double, and the space be- 
tween the two branches is termed the “ cellule médiastine.” These two branches 
form the swbcosta and radius of Schneider, and are well indicated on plates 2&5 
of his monograph. 
But the character on which M. Girard places most stress is the small transverse 
nervule near the base of the wing connecting the two branches; this he calls the 
“ nervule intercurrente.” The position of this nervule is considered as furnish- 
ing a specific character, and its absence in some species as entitling them to form 
a separate genus, in which he would place H. stigma, Montrouzier. The presence 
of this intercurrent nervule is indicated in Schneider’s scheme of the neuration 
of Chrysopa, on plate 2; and at page 42, he says, “In area intra radium et sub- 
costam angustissima prope ad al basin wna, et in pterostigmate plures ven 
transyersariz nomine venularum radialium a me significantur.” However, it is 
clearly absent in his genus Apochrysa, and most probably also in his Chrysopa 
longicollis, which, he remarks, is intermediate between Chrysopa and Apochrysa. 
To this species H. stigma is evidently nearly related ; and in the same genus will 
come C. lutea, Walker, C. aurifera, Walker, and A. Marionella, Guérin, none of 
which possess this intercurrent nervule. All of these are elegant species, readily 
distinguished at first sight by the great length of the antenne. 
