PERLID.E. — NEMOURA. 113 



Sp. 10. pallicornis. Nigro-picea, nitida, antennis elongatis pedibusque pallidis, 

 alls subfusco-cinereis, nervis fuscis, (Long. corp. 2| lin. ; Exp. Alar. 9|lin.) 



Ne. pallicornis. Steph. Catal. 315. No. 3554. 



Shining', pitchy-black : antennae elongate, slender, pale ; legs pale ; wings 

 somewhat of a fuscous ash, with fuscous nervures. 

 Also found in the vicinity of Hertford, in June. 



Sp. 11. nitida. Piceo-fusca, nitida, antennis gracilibus elongatis nigris, pedibus 

 palUdo-ruJis ; alls angustis hyalinis, nervis pallidis. (Long. corp. 2g — 3 lin. ; 

 Exp. Alar. 9^ lin.) 



Ne. nitida. Steph. Catal. 315. No. 3555. 



Shining, pitchy-!)rown : antennse long and slender, black ; legs pale red ; 



wings narrow, hyaline, nervures pale. 

 The legs are sometimes pitchy towards the apex of the femora and of the 



tarsi. 



Not uncommon, in the vicinity of Hertford and at Ripley, at the 

 end of June and beginning of July. 



Sp. 12. Cambrica. Piceo-nigra, collare rugoso, mesothoracis lateribus pedibusque 

 rufescentibus, alis fuscescentibus, nervis brunneis. (Long. corp. 2 lin.^ Exp. 

 Alar. 91 lin.) 



Ne. Cambrica. Steph. Nomen. 2d edit. col. 118. 



Pitchy-black, shining : collar rugged ; sides of the mesothorax reddish ; legs 



pale reddish; wings long, narrow, fuscescent, with strong dark brown 



nervures ; anteunee short, black. 



Found at South Wales, near Swansea, in October, by 

 L. W. Dillwyn, Esq. 



Sp. 13. sulcicollis. Nigra, nitida, pedibus piceis, collare rugoso, sulco dorsali, 

 alis fuscescentibus, nervis saturatioribus. (Long. corp. 21 lin. ; Exp. Alar. 

 6i-7| lin.) 



Ne. sulcicollis. Steph. Catal. 315. No. 3556. 



Deep shining black : collar rugged, with a dorsal channel ; legs pitchy; tibiae 

 sometimes pale reddish ; antennse short, black ; wings narrow, fuscescent, 

 with darker nervures, and sometimes the transverse ones towards the apex 

 bordered with fuscous, and forming a dark x- 

 Also found near Hertford and Ripley, in June and July, not 



uncommonly. 



Sp. 14. fumosa. Atra, nitidissima, abdomine tibiisque rufo-piceis, alis fusees- 

 centibus nervis saturatioribus. (Long. corp. 1^ — If lin. ; Exp. Alar. 5 — 6^ 

 lin.) 



Ne. fumosa. Steph. Catal. 315. No. 3557. 



