36 Rey. A. E. Haton’s Monograph 
VII. Pernracenta, Walsh (1863); in Palingenia (A), Walsh (1862). 
Typ. P. vittigera. 
quadripunctata, Walsh, Proc. Ent. Soe. Philad. ii. 198, note 16; subim., 
9 im. 
vittigera, ! Walsh; in Palingenia, Walsh. 
V. Potymirarcys, Etn. (1868); in Ephemera, Ol.; Palingenia, Burm. 
Typ. P. virgo. 
indicus, Pict.; in Palingenia, Pict.; 2 im. 
macrops, Hag.; in Palingenia, Hag. 
Savignii, ! nov. sp. (Savigny, pl. ii. 5, Ephemera; in Palingenia, Pict.; not 
described). 
virgo, Ol.; in Ephemera, Ol.; Palingenia, Pict. 
XI. Poramantuvs, Pict. (1843-5); restricted, Etn. (1868); in Ephemera, 
auct.—Typ. P. luteus. 
eneus, Pict. Ephem. 229, pl. xxxiii.; Walk. Cat. 545=Ephemerella, 9 im. 
annulatus, Hag. Ceyl. Syn. i. 476= Leptophlebia, 3. 
apicatlis, Ste., in Hphemera, Ste.; Pict. Ephem. 236; Walk. Cat. 544 = 
Ephemerella ignita, g im. 
brunneus, Pict. Ephem. 217, pl. xxvii.; Walk. Cat. 542 = Leptophlebia 
fusca. 
castaneus, Pict. Ephem. 215, pl. xxvi. 4,5; Walk. Cat.542=Leptophlebia, 
9 im. 
cinctus, Retz., in Ephemera, Retz.; Pict. Ephem. 219, pl. xxviii. (excl. 5) ; 
Walk. Cat. 543; Brau. N. Aust. 27; Hag. Brit. Syn. 20; Ausser. 
Neur. Tirol. 137= Leptophlebia. 
concinnus,! Walk., in Palingenia, Walk.; Hag. Am. Syn. 51=Lepto- 
phlebia cwpida, g im. 
costalis, Burm., in Baetis, Burm.; Pict. Ephem. 237; Walk. Cat. 546 = 
Leptophlebia, subim. 
cupidus, Say, in Ephemera, Say; Hag. Am. Syn. 51; Walsh, Proc. Acad. 
Nat. Se. Philad. 1862, p. 372, & Proc. Ent. Soc. Philad. ii. 172, 
189, 194, notes 14, 15= Leptophlebia. 
dilutus, Ste., in Ephemera, Ste.; Walk. Cat. 545; Hag. Brit. Syn. 19; 
[misprinted dilectus, Pict. Ephem. 236] =EHphemerella ignita. 
dispar, ! Ste., in Ephemera, Ste.; Pict. Ephem. 234; Walk. Cat. 542= 
Leptophlebia helvipes, g im. 
erythrophthalinus, Schr., in Ephemera, Schr.; Pict. Ephem. 222, pl. xxix. 
(misprinted erythrocephalus) aquat., pl.xxx.; Walk. Cat. 
544; Hag. Brit. Syn. 21=Hphemerella ignita. 
exspectans, ! Walk. Trans. Ent. Soc. N.S. v. 198= Ephemera, 2 subim. 
fasciatus, ! Hag. Ceyl. Syn. i. 476= Ephemera. 
femoralis, Hag. loc. cit.= Leptophlebia. 
Ferreri, Pict. Ephem. 203, pl. xxv. 1; Walk. Cat. 539; ¢ im. 
fuscus, Curt., in Ephemera, Curt.; Pict. Ephem. 235; Walk. Cat. 543; 
Hag. Brit. Syn. 19= Leptophlebia. } 
Geerii, Pict. Ephem. 211, pl. xxvi. 1-8; Walk. Cat. 541; Brau. N. Aust. 
27; Hag. Brit. Syn. 18; Ausser. Neur. Tirol. 1836=Leptophlebia 
helvipes. 
gibbus, Pict. Ephem. 226, pl. xxxi.-xxxii. (aer.); Walk. Cat. 544=Ephe- 
merella. 
halteratus, Fab., in Ephemera, Fab.; Pict. Ephem. 236; Walk. Cat. 546= 
Leptophlebia cincta, g im. 
