32 Rey. A, E. Eaton’s Monograph 
Epnoron, Will. 
leukon, Will. Trans. Am. Soc. Philad. v. 71-3=Baetis ? 
IX. Evruypnocta, nov. gen. Typ. E. Hecuba. 
Hecuba, ! Hag.; in Palingenia, Hag.; 9 im. 
HemeErosivs, Clut. cap. viii. fig. & p. 100= Palingenia longicauda. 
XXVI. Hezpracenia, Walsh (1863); in Ephemera, Poda; Baetis, Say; 
Palingenia, Walk. Typ. H. flavescens. 
alpicola, ! noy. sp. 
angustipenmis, ! Ramb.; in Ephemera, Ramb.; Baetis, Hd. Pict. 
annulifera, ! Walk.; in Palingenia, Walk. 
basalis, ! Walk.; in Baetis, Walk. 
Bellieri, ! Hag.; in Baetis, Hag. 
borealis, ! nov. sp., ¢ im. 
canadensis, ! Walk.; in Baetis, Walk. 
cruentata, Walsh, Proc. Ent. Soc. Philad. ii. 205, note 19. 
cupulata, ! noy. sp. 
determinata, ! Walk.; in Baetis, Walk. 
elegans, Curt.; in Baetis, Curt. : 
fiaveola, Pict.; in Baetis, Pict. 
flavescens, ! Walsh; in Palingenia (C), Walsh. 
flavipennis, Duf.; in Ephemera, Dut. 
fluminum, Pict.; in Baetis, Pict. 
fusca, ! Walk.; in Baetis, Walk. 
guttata, Pict.; in Baetis, Pict. 
insignis, ! (Ronalds I. pl. xi. 22); Etn. Trans. Ent. Soe. 1870, p. 7. 
interpunctata, Say; in Baetis, Say; Palingenia (C), Walsh (1862). 
tridana, Kolen.; in Baetis, Kolen. 
‘lateralis, Curt.; in Baetis, Curt. 
longicauda, ! Ste.; in Baetis, Ste. 
lwridipennis, Burm.; in Baetis, Burm. 
maculipennis, Walsh, Proc. Ent. Soc. Philad. ii. 206, note 19. 
montana, Pict.; in Baetis, Pict. 
wigrimana, Duf.; in Ephemera, Duf.; sp. dub. 
nivata, ! Nov. sp. 
Picteti, Meyer-Diir; in Baetis, Meyer-Diir. 
pulchella, Walsh; in Palingenia (C), Walsh. 
semicolorata, Curt.; in Baetis, Curt. 
simplex, Walsh, Proc. Ent. Soc. Philad. ii. 204, note 19. 
sylvicola, |! Hd. Pict.; in Baetis, Ed. Pict. 
tessellata, Hag.; in Baetis, Hag.; incerte sedis (perhaps a Leptophlebia). 
torrida, ! Walk. ; in Baetis, Walk. 
venosa, Fab.; in Ephemera, Fab.; Baetis, Ste. 
vicaria, ! Walk.; in Baetis, Walk. 
vitrea, | Walk.; in Palingenia, Walk. 
