210 THE ENTOMOLOGIST. 
H. pini remains in the restricted genus Hemerobius. The 
species described by McLachlan as H. mortoni is to be referred 
to Boriomyia; and if Banks is right in regarding H. inconspicuus 
as a Sympherobius, then H. pellucidus, Walk., should be placed 
in the same genus. But it must be kept in view that both 
H. inconspicuus and H. pellucidus have regularly three radial 
sectors, while in all the examples of the former in my collection 
there is a cross-veinlet between the radius and branch of the 
radial sector at the apex of the hind wing. In the five examples 
of H. pellucidus before me the same cross-veinlet exists in the 
left hind wing of one specimen only. 
However, the purpose of these notes is not to discuss the 
genus or genera as a whole, but rather to bring under notice the 
fact that two species have hitherto been mixed in British collec- 
tions under the name of S. elegans. 
In this country these small insects do not appear to have 
been taken usually in numbers, and until I received from Mr. 
Martin EK. Mosely a male taken by him in Hampshire, I had no 
British specimens in my collection. Since then I have seen a 
nice series of twelve specimens taken by Mr. Hugh Scott, of the 
University Museum of Zoology, Cambridge, to which I shall 
again allude, and of which he very kindly presented me with 
three specimens. All these belong to the smaller species. 
Of the other species, to which I shall refer as S. striatellus, 
Klapalek, I had seen no British example until recently, when 
Professor J. W. Carr, of Nottingham, sent me one in fine 
condition in a large collection of Neuropteroid insects forwarded 
for determination. I then applied to Mr. Porritt to let me know 
what he had of supposed elegans, and he at once very kindly 
forwarded all he possessed, not a great deal and nearly all 
‘carded ” specimens, but including both forms, and therefore of 
much interest and use to me in helping to a more satisfactory 
understanding of the matter. 
S. striatellus was described by Klapalek from the Tran- 
sylvanian Alps (‘ Vest. Ceske Akad. Frant. Jos.,’ vol. 18, p. 7, 
1905). A specimen in a lot of Neuroptera-Planipennia received 
from the Zoological Museum, Berlin, for determination called 
my attention to another female in my own collection from 
Macugnaga, received from McLachlan along with others of the 
so-called S. elegans. 
The following short diagnosis will, with the aid of the wing 
photographs, serve to separate the two :— 
Face dark shining piceous; dorsum of thorax also dark 
pitchy brown; neuration of fore wings entirely 
fuscous without pale interruptions, these wings 
heavily marked to the wing base, the markings more 
or less radiate, especially those proximal to the middle 
series of gradate veinlets, those in the distal part 
