12 tJune, 



10. Ephernerella notata, Eaton : Revis., 305, pi. Ixv, 9 [adult details] 



(1887). 

 Penis lobes pointed at the tip before desiccation. 

 River Eden [Cumberland] and South of Scotland. 



11. Ccenis dimidiata, Stephens: Mon., 95 (part), pi. ii, 4, and v, 5 



[adult details] ; Revis., 142, pi. xv, 266 [adult details] (1884). 



Female abdomen chalky-white, tinged in the first five segments with greyish. 

 $ genitalia whitish. 



Summer. 



12. Ccenis rivulorum, Eaton : Revis., 143 (1884), and 320 (1888). 



Female abdomen white, partially varied with greyish in the first three segments. 

 $ genitalia whitish. 



Summer. 



13. Ccenis halterata, Eabricius : Revis., 144, pl.xv, 26, 26a [adult details] 



and xlii, 1, 2, 7—17, and 22 — 25 [nymph] (1884), = C. macrura 

 and chironomiformis, Cat., p. 8 ; Mon., 93 and 94, pi. v, 4 [adult 

 details]. 

 Female abdomen blackish-grey above, varied with ochreous towards the sides 

 and at the joinings. $ sub-genital membrane broadly edged at the tip with blackish, 

 and usually marked at the base with a median, almost semicircular, mucronate spot 

 of the same colour. 

 Summer. 



14. Ccenis Harrisella, Curtis: Revis., 146 (1884),= C. luctuosa, Cat., 



p. 8 ; Mon., 97, pi. v, 6 [adult details] ; Revis., pi. xlii, 5, 6, 18 — 

 21, 27, 28 [details of nymph] (1884). 

 Female abdomen warm sepia-brown, marked on each side in every joining with 

 a short black line, and near the base of every setaceous pleural process with a pale 

 elongate or oblong spot. $ sub-genital membrane pale, excepting at the sides before 

 the forceps, and a narrow, slightly tapering streak about half its length from the 

 middle of the base, which are dark greyish. 

 Summer. Near Reading. 



(To be concluded in our next). 



DESCRIPTION OF A NEW NEPTICULA FEOM BEECH. 

 BY H. T. STAINTON, F.B.S. 



Nepticula fulgkens, n. sp. 

 Anterior-wings shining olive-green to beyond the middle, then with s: very 

 brilliant silvery fascia, rather obliquely placed ; sometimes the ground colour is a 

 little darker immediately before the fascia ; the apical portion of the wing is of a 

 rich chocolate-brown, in certain lights looking blacker and contrasting strongly with 

 the pale grey cilia ; head whitish-ochreous, darker on the vertex. Exp. al. 2| lin. 



