on the Hphemeride. 37 
Poramantuts (continued). 
helvipes, ! Ste.,in Ephemera, Ste.; Pict. Ephem. 2385; Walk. Cat. 543= 
Leptophlebia, 2 im. 
hyalinus, Zet., in Ephemera [hyalinata], Zet.; Pict. Ephem. 237= Lepto- 
phlebia cincta. , 
inanis, Gmel., in Ephemera, Gmel.; Pict. Ephem. 235; Walk. Cat. 544= 
Leptophlebia cincta, g im. 
|| inanis, Pict. Ephem. 232, pl. xxiv. 4; Walk. Cat. 547; incerte sedis 
(allied to Tricorythus) ; Gen. XIII. 
Krueperi, Stein, Berl. Ent. Zeit. vii. 414= Leptophlebia ?, im. 
luteus, Lin., in Ephemera, Lin.; Pict. Ephem. 205, pl. xxv. 2,3; Walk. 
Cat. 539; Hag. Stet. Ent. Zeit. xxvi. 229. 
marginatus, Lin., in Ephemera, Lin.; Hag. Brit. Syn. 17, & Stet. Ent. 
Zeit. xxvi. 229= Leptophlebia. 
{ marginatus, Pict. Ephem. 208, pl. xxv. 4, 5; Walk. Cat. 540; ? Oul. 
1867, p. 27= Leptophlebia Picteti. 
minor, ! Ste., in Ephemera, Ste.; Pict. Ephem. 237; Walk. Cat. 546= 
Leptophlebia fusca, @ im. 
modestus, ! Hag. An. Soc. Ent. Fr. 1864, p. 89= Leptophlebia. 
nebulosus, ! Walk., in Palingenia, Walk.; Hag. Am. Syn. 52; Walsh, 
Proc. Ent. Soc. Philad. ii. 193, note 13, 194, note 15= Lepto- 
phlebia, g im. 
odonatus, Walsh, Proc. Acad. Nat. Se. Philad. 1862, p. 372, & Proc. Ent. 
Soe. Philad. ii. 171=nebulosus, g im. 
priscus, Pict. Trait. d. Paleont. II. ii. 871; Hag. Verh. zool.-bot. Ver. 
Wien, 1854, p. 227; Pict. & Hag. Org. Reste im Bernst. ii. 77, pl. 
vi. 3, b= Leptophlebia. 
roseus, Ste., in Ephemera, Ste.; Pict. Ephem. 236; Walk. Cat. 545= 
Ephemerella ignita, im. 
stigma, ! Ste., in Ephemera, Ste.; Pict. Ephem. 235; Walk. Cat. 541= 
Leptophlebia marginata, g im. 
submarginatus, ! Ste., in Ephemera, Ste.; Pict. Ephem. 236; Walk. Cat. 
545=Leptophlebia helvipes, 2 im. 
talcosus, ! Ste., in Ephemera, Ste.; Pict. Ephem. 234; Walk. Cat. 541= 
Leptophlebia marginata, 2 im. 
+ Sempuis, Pz. Expl. Schef. Ic. 
t marginata, Pz. op. cit. Ie. eciv.= Palingenia longicauda. 
XXI. Srpsuvurvus, Etn. (1868) [mis-spelt Siphlonwrus] ; in Baetis, 
Say; Ephemera, Zet.; Palingenia, Walk. Typ. S. flavidus. 
alternatus, Say ; in Baetis, Say; Baetis (A), Walsh. 
annulatus,! Walk; in Baetis, Walk. 
? aridus, Say; in Baetis, Say ; Baetis (B), Walsh. 
armatus, ! Etn. Trans. Ent. Soc. 1870, p.6; g¢ im. 
bicolor, ! Walk.; in Palingenia, Walk. 
? debilis, Walsh; in Baetis (C), Walsh. 
femoratus, Say; in Baetis, Say; Baetis (A), Walsh. 
jlavidus, ! Ed. Pict.; in Baetis, Ed. Pict. 
lacustris, ! Etn. Trans. Ent. Soc. 1870, p. 7. 
Linneanus,! nov. sp.; fo im. 
? siccus, Walsh; in Baetis (B), Walsh. 
XIV. Tricoryruus, Etn. (1868); in Ephemera, Savigny; Cenis, Pict. 
varicauda, Pict., (Savigny, pl. ii. 6, 7); in Canis, Pict. 
