on the Hphemeride. 21 
Baetis (continued). 
verna, ! Ste. Ill. vi. 66=pheops. 
vernus, Curt. Phil. Mag. 1834, p. 121l=pree.? 
? verticis, Say, Journ. Acad. Nat. Sc. Philad. viii. 42; Walk. Cat. 562 
Le Conte, rep. ii. 412; Hag. Am. Syn. 46; Walsh, Proc. Ent. 
Soe. Philad. ii. 204, Note 19. 
vicaria, ! Walk. Cat. 565; Hag. Am. Syn. 48=Heptagenia, g im. 
zebrata, ! Hag. An. Soe. Ent. Fr. 1864, p. 88= Heptagenia, g subim. ? im. 
XVII. Barisca, Walsh ; in Baetis, Say. Typ. B. obesa. 
obesa, Say, in Baetis, Say; ! Walsh, Proc. Acad. Nat. Se. Philad. 1862, 
p. 878; Proce. Ent. Soe. Philad. ii. 187, iii. 200-6, fig. 
Bracuycercvs, Curt. (1834)=Cenis, Ste. (1835-6), p. 
chironomiformis, Curt. Phil. Mag. 1834, p. 122=Cenis. 
Harrisella, Curt. ib.; (Har. Exp. pl. vi. 1-3) =Cenis luctuosa, ? , ? 
minima, Curt. ib.=Cenis dimidiata ? 
BracHypuuesBia, Westw. (1840) =Baetis, Leach (1815). 
bioculata,! Westw. Intr. ii. 25, Add. to Gen. Syn. 158=Baetis binocu- 
latus, g im. 
XV. Canis, Ste. (1835-6); in Ephemera, Lin.; Brachycercus, Curt. ; 
Oxycypha, Burm. Typ. C. macrura. 
amica, Hag. Am. Syn. 55=diminuta, g im. ? 
argentata, Pict. Ephem. 279, pl. xliii.6; Walk. Cat. 581; 9 subim. 
brevicauda, ! Ste. Ill. vi. 61; Pict. Ephem. 286; Walk. Cat. 582=dinu- 
diata, 2 im. 
chironomiformis, Curt. in Brachycercws; ! Ste. Ill. vi. 62; 2 im. (mis- 
printed chironoformis, Hag. Brit. Syn. 11, in synon.). 
dimidiata, ! Ste. Ill. vi. 61; Pict. Ephem. 286; Walk. Cat. 582; Hag. 
Brit. Syn. 12; Oul. 1867, p. 27; im. 
diminuta, ! Walk. Cat. 584; Hag. Am. Syn. 55; ¢ im. 
discolor, Burm.; in Oxycypha, Burm. 
grisea, Pict. Ephem. 278, pl. xlv. 1,2; Walk. Cat. 581; Brau. N. Aust. 
25; Ausser. Neur. Tirol. 133=macrura. 
halterata, Hag. Brit. Syn. ll=chirononuformis. 
t halterata,! Etn. Trans. Ent. Soc. 1868, pp. 279, 280, 281=luctuosa, 
od im. & nymph. 
Harrisella, Ste. Ill. vi. 61; Pict. Ephem. 286; Walk. Cat. 583=Jluc- 
tuosa, 9. 
hilavis, Say; in Ephemera, Say; Walk. Cat. 583; Hag. Am. Syn. 54; 
Walsh, Proc. Acad. Nat. Sc. Philad. 1862, p. 381, Proc. Ent. 
Soe. Philad. ii. 179. 
interrupta, Ste. Ill. vi. 62; Pict. Ephem. 287 ; Walk. Cat. 583=macrura, ? . 
lactea, Burm.; in Oxycypha, Burm.; ! Pict. Ephem. 276, pl. xliu. 1-4 & 
xliv.; Walk. Cat. 581; Hag. Stet. Ent. Zeit. xxvi. 229=chirono- 
miformis. 
luctuosa, Burm.; in Oxycypha, Burm.; Pict. Ephem. 283, pl. xlv. 3; 
Walk. Cat. 582; Hag. Stet. Ent. Zeit. xxvi. 229. 
macrura, Ste. Ill. vi. 60, pl. xxix. 1; Walk. Cat. 583; Hag. Brit. Syn. 
10;! Etn. Trans. Ent. Soc. 1868, pp. 279-82. 
