on the Hphemeride. 3 
The late State Entomologist of Illinois entrusted me 
with some authentic specimens of American species 
which he transmitted for the British Museum (Walsh 
1862-3) . 
My own types of new species are placed in the British 
Museum. 
In the subjoined list of publications relating to the 
Ephemeride, the titles of those which I have been unable 
to collate are distinguished by asterisks prefixed; and 
the names originated in each work are given after its 
title. My thanks are due to Mr. G. R. Crotch, of the 
Cambridge University Library, for the great assistance 
he has rendered me in the preparation of the bibliogra- 
phical portion of this paper; and I am also under great 
obligations to Mr. J. C. Dale, Professor Westwood, Mr. 
C. O. Waterhouse, and Mr. R. M’ Lachlan, for enabling me 
to give references to scarce books. 
Authors anterior to those of the seventeenth Century 
are mentioned by Clutius (1634), and by Pictet 
(1843-5). The following list is arranged in chronological 
order, and the abbreviations employed in the citations 
are given in brackets, immediately after the year of 
publication. 
1634 (Clut.). Aug. Cluyt, Opuse. duo singularia; ii. De Hemerobio sive 
Ephemero, pp. 61-103. 
1662 (Mey). J. de Mey, in J. Gédart’s Metamorph. et Hist. Nat. Ins. 
i. Appendix, pp. 193-200. 
1675 (Swam.). J. Swammerdamm, Ephemeri vita.— [See Tyson, 1681.) 
*1680 (Bleg.). N. de Blegny, De quelques papillons qui paraissent une 
fois tous les ans sur les bords de la Meuse; in Temple d’Esculape, An. 
2e, p. 188 (Hag.). 
1681, E. Tyson, (a translation of) Ephemeri vita, by J. Swammerdamm, 
pp. 44, pls. 8, 4to. 
*1718, J. J. Baier, De Ephemeri vita, Adagium medicinalium centuria, 
pp. 54 (Hag.). 
*1723 (Kul.). J. A. Kulmus, Yon einem gewissen Fisch-Insect; in 
Bresl. Natur. u. Kunstgesch. pp. 292-3 (Hag.). 
1735 (Lin. 8S. N. i). K. Linné, Systema Nature, ed. i—Insecta,.... 
Angioptera, .... Ephemera. 
1737-8 (Swam.). J. Swammerdamm, Biblia Nature, i. 234-70; i. 
pls. xiii-xy. 
1740 (Lin. S. N. ii). K. Linné, Systema Nature, ed. ii., p. 60. 
Gymnaptera. 
1741 (Targ.). G. Targioni-Tozzetti, Lettera sopra una numerosissima 
specie dei farfalle vedutasi in Firenze; pp. 32, frontisp. figs. 1-5. 
B2 
