12 Rey. A. E. Eaton’s Monograph 
1847, M. C. Verloren, Sur la circulation dans les Insectes; in Mém. 
Couron. Acad. Roy. Belg. t. xix. 49, pl. i. 
1847, Ant. & Giov. Bap. Villa, Comparsa periodica delle Efimere nella 
Brianza ; in Economista, Novemb. 1847, p. 1-6 [illustrated]. 
1847 (at. Nouv. Dict.). P. A. Latreille, Nouv. Dict. d’hist. Nat., t. x. 
348-9, pl. xix. 5, 
1848 (Corn.). C. Cornelius, Beitrige zur niheren Kenntniss der Palin- 
genia longicauda, Ol.; 38 pp., 4 pl. 
1848 (Cuy. R. A., Crochard ed.). EH. Blanchard, in Cuvier’s Reg. Anim. 
by Crochard, t. xiii. 88-92, t. xiv. pl. cii. 1-1c. 
1848 ree L. Calori, en ee Oe vavibare della Cloe Hees 
1849 (Hag. Tebet): ETE i Eagsh, Uebersicht ae neueren Ties 
betreffend die Neuropteren Linné’s; in Stet. Ent. Zeit. x. 354-71. [In 
the critique of Pict. Ephem. (1843-5), Dr. Hagen indicated in this paper 
a genus Potamantius, restricted (type P. gibbus, Pict.) ; but he did not 
adopt the genus in his later writings. Mr. Walsh afterwards described 
this genus, with additional species, under the name Ephemerella. I have 
passed by Dr. Hagen’s usage, arid have adopted the later name for the 
genus. | 
*1850, L. H. Fischer, Beitraige zur Insecten-Fauna um Freiburg im 
Breisgau; in Jahresb. des Mannheim. Ver. fiir Naturk. pp. 60-70 (Hag.). 
1851 (Sieb. Beitr. xii.). C. T. EH. von Siebold, Beitrage zur Fauna der 
wirbellosen Thiere Preussens (12th Beitr.); in *Neu. Preuss. Provinzial 
Blatt. Bd. xi. 8, Nos. 1-18. [A mere list.] 
1851 (Blanch. Chili). E. Blanchard, in C. Gay’s Historia fisica y politica 
de Chille, vi. 103-7; Atl. Zool. Ent. Névrop. lam. ii. 2-8. (Cloe) vitripennis. 
*1852 (Imh. Bericht). L. Imhoff, Oligoneuria rhenana; in Bericht 
tiber Verhandl. d. naturf. Gesellsch. in Basel, x. 177-80. O. rhenana. 
*1853, J. A. Herklots, Het Haft, de langgestaarte Hendagsvlieg; in 
Jahrb. k. Zool. Genootsch. Amst. pp. 117-123. 
*1853, Forster, Notiz tiber die Hintagsfliege; in Corresp. Bl. zool. 
mineral. Ver. Regensburg, vii. 91-3. ~ 
1853 (Kirsch. Ent. Misc.). C. L. Kirschbaum, Entom. Miscellen ; in 
Jahrb. Vereins f. Naturk. Nassau, Heft. ix. pp. 44-5. 
1853 (Walk. Cat.). F. Walker, List of Neuropterous Insects in the 
British Museum. Part iil. pp. 535-85. H. simulans, Colombic, decora, Hebes, 
australis. Pal. lata, viridescens, occultata, natata, hwmeralis, bicolor, 
pallipes, concinna, nebulosa, albifilum, latipennis, vitrea. Ba. angulata, 
remota, vicaria, basalis, tessellata, albivitta, annulata, Taprobanes, deter- 
minata, invaria, fusca, debilis, canadensis, fuscata, scita, torrida, ignota. 
Cen. diminuta, sinensis, perpusilla. 
[The general collection of the British Museum contained in 1853 :—E. 
VuLGATA, ¢ 1 subim.,2im., 1 danica, 9 im.; panica,2 9 im. ; SIMU- 
LANS, 1 decora, g subim. ; Conomsrm, ub Toptasmetia, 9 subim.; ; DECORA, 
1 ¢ im.; (HEBEs, wanting) ; AUSTRALIS, subim. 1 ¢,3 9. Por. LUTEUS, 
1 Leptophlebia marginata, g subim.; Marcinatus, 1 g im.; crNncTUS, 1 
Leptophlebia fusca, § im.; ERYTHROPHTHALMUS, Ephemerella ignita, 2 9 
im.; RosEus, H. ignita, 1 2 im.; cosTanis, im. 1 ¢,2 9. Pau. viRGo, 
1 g subim.; aupicans, 1 9 im.; Lata, 3 g¢ subim.; viripDEScENS, 1 H. 
bilineata, 9 subim.; occuLTaTa, bilineata, 3 Q subim.; Navava, 2 E. 
decora, 2° subim.; HuMpRALIS, 1 9 subim.; BICOLOR, 1 Siphlurus, 
2 subim.; PALLIPES, Leptophlebia cupida, i 6 subim., 2 2 im. ; 
concinna, L. cupida, 1 g im.; NEBULOsA, 2 Leptophlebia, g im.; 
