88 Rey. A. EH. Haton’s Monograph 
apicibus interdum lutescenti suffusis, lineis spiracularibus 
in parte atris, et plexubus nervorum rubiginosis; atque 
apicalia sunt fusca vel picea, juncturis vel flavescentibus 
vel rufescentibus. Sete forfexque albicantes; hc vel 
tri- vel quadri-articulata, et basin versus nigricana. 
@. Nervicrassi alarum picei. Pedes seteeque testacei, 
posterioribus tarsorum albicantibus. Abdomen saturate 
fusco-piceum, juncturis flavescentibus, et processti penul- 
timi segmentorum late exciso. 
Long. corp. d 2 7-8; al. ¢ 2 7-9; set. dim.8 &9 
-8 & 11, subim.9 & 7; set. 9 im. 7 & 10-8 & 11 mm. 
Hab.—Northern and Temperate Europe, in streams and 
rivers. June, July, and August. 
Leptophlebia vespertina. 
Ephemera vespertina, Lin. 1758. LH. albipennis, Retz. 
1783. Baetis fusca, Burm. 1839. Cloe vespertina, Oul. 
1867. 
Subimago, s.s. ‘ Nigra, alis posticis albis. Est inter 
minores generis sui, toto corpore et alis anticis nigris; 
sole ale postice albz, quibus ab omnibus generis sul 
speciebus manifeste differt. 
Hab.—Copiose in Smolandii ad fluvium Sathaella.” 
(Lin. abstract.) 
Leptophlebia mollis, n. sp. 
(Forceps maris, Pl. IV. fig. 28.) 
Cloe mollis, Hag. 1861; not described. 
Subimago, v.s.s. Alze pallidissime brunnescenti-albe. 
Abdomen femine fuscum. 
Imago, v.s.s. ¢. Tergum thoracis vel luteo-piceum, 
vel saturate fuscum. Pedum antici testacei, tarsis albis ; 
posteriores pallidissime testacei. Alee vitreze. Segmen- 
torum abdominis 2-7 alba, juncturis obscuris; cetera 
luteo-picea. 
Long. corp. ¢ 6, 9 5; al. 6 7, 2 7:5 mm. 
Hab.—West Farm, New York. 
Series 4. Sp. typica, LD. cupida. 
Imago. Ale postice, et genitalia, eis specierum in 
serie precedenti similes. Setarum media manifeste 
