210 THE ENTOMOLOGIST. 



H. pini remains in the restricted genus Hemerohius. 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. pelluoidus 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 E. 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. 13, 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 



