TITLES. 
Ins. 47 
829. Obertiiur, Cii* Etudes d’entomologie. Vingtieme livraison. De 
la variation chez les Lepidopteres. Rennes : 1896, 4to, xx & 74 pp., 
24 pis. 
830. . Du Mim6tisme cbez les insectes. Feuille Natural, xxvi, 
pp. 61-63 & 155-157; xxvii, pp. 7 & 8. [Lepidoptera.~\ 
831. . Les especes pyr^neennes du genre Erebia. T.c. pp. 109-111. 
\Lcpidoptera.~\ 
832. . De la variation dans le genre Lycccna. T. c. pp. 190-192. 
[Lepidoptera.~\ 
833. . Notes on Erebia melas. Ent. Mag. xxxii, pp. 1-3. 
[ Lepidoptera .] 
With supplementary note by F. C. Lemann, p. 4. 
834. . Sur Vanessa cyanomelas , Doubl. Bull. Soc. ent. France, 
1896, pp. 171-174. [Lepidoptera.~\ 
835. Oestlund, O. W. Ants as personal property holders. Ent. News 
Philad. vii, pp. 225 & 226. [Ilymenoptera.] 
836. Ohaus, F. Ueber das Sammeln von Kafern nach biologisclien 
Gesichtspunkten. Verh. Ver. Hamburg, ix, pp. 53-58. [ Coleoptera ;.] 
837. Olivier, E. Lampyrides captures au Paraguay par M. le Dr. Bohls. 
Nov. Zool. iii, pp. 4-7. [ Coleoptera .] 
838. — — . Descriptions de nouvelles especes de Lampyrides du Musee 
de Tring. T. c. pp. 1-3. [ Coleoptera .] 
839. Oiibigny, H. i>’. Synopsis des Aphodiens d’Europe et du bassin de 
la Mediterrauee. Abeille, xxxviii, pp. 197-271. \_Coleoptera.~\ 
840. . Description des deux nouveaux Aphodius m^diterraneens. 
Bull. Soc. ent. France, 1896, p. 149. [ Coleoptera .] 
811. Ormerod, Miss E. A. Report of observations of injurious insects 
and common farm pests, during the year 1896, with methods of 
prevention and remedy. Twentieth report. London : 1897, x & 
160 pp. 
842. Osborn, H. Insects affecting domestic animals : au account of the 
species of importance in North America, with mention of related 
forms occurring on other animals. Bull. Dep. Agric. Ent. No. 5, 
302 pp. 
843. Osciianin, V. ZoogeogtaficheskiT Kharakter faun'i poluzhest- 
kokr‘il‘ikh turkestana. St. Petersburg : 1891, 8vo, 116 pp. 
This work has previously escaped notice ; it is entirely in Russian, and 
contains names of new species and genera, which however are apparently 
not adequately characterised. It is apparently a reprint from a Russian 
geographical journal. 
844. Osten Sacken, C. R. Bibliographische und theilweise psycholo- 
gische Untersuchung fiber die zwei Ausgaben der Erstlings-arbeit 
von H. Loew ; Ueber die Posener Dipteren. Berlin, ent. Zeitschr. 
1896, pp. 279-284. 
845. . Notice on the terms tegula, antitegula, squama, aud alula, as 
used in Dipterology. T. c. pp. 285-288. 
816. . A new genus of Cyrtidce from New Zealand. Ent. Mag. 
xxxii, pp. 16-18. [ Diptera .] 
847. Ottolengui, R. A comparison of the N. American species of 
Arachnis, with description of a new species. Ent. News Philad. vii, 
pp. 124-128, pi. iv. \Lepidoptcra.] 
