20 Ins . 
XIII. IN8ECTA. 
262. [Ehrmann, G. A.] A strange form of Catocala. J. N. York Ent. 
Soc. i, p. 152. 
263. -. New West African Butterflies. Op. cit. ii, pp. 77 & 78. 
[Lepidoptera.] 
264. Elwes, H. J. Address. P. ent. Soc. London, 1894, pp. i-lxxxiv. 
On the geographical distribution of Rhopalocera. 
265. Emery, 0. Ueber Entstehung des Soziallebens bei Hymenopteren. 
Biol. Ceutralbl. xiv, pp. 21-23. 
266. . Die Entstehung und Ausbildung des Arbeiterstandes bei den 
Ameisen. T. c. pp. 53-59. [ Hymenoptera.] 
Summary, J. R. Micr. Soc. 1894, p. 332. 
267. . Mission scientifique de M. Ch. Alluaud aux lies S^chelles. 
2® mdmoire. For midden. Ann. Soc. ent. France, . 1894, pp. 67-72. 
[ Hymenoptera .] 
268. . Studi sulle Formiche della Fauna neotropica, vii-xvi. Bull. 
Soc. ent. Ital. xxvi, pp. 137-241, pis. i-iv. [ Hymenoptera .J 
269. . Studio monografico sul genere Azteca , Forel. Mem. Acc. 
Bologua (5) iii, pp. 119-152, 2 pis. [Hymenoptera.] 
270. . Yiaggio del dottor Alfredo Borelli nella Repubblica Argen- 
tina e nel Paraguay. Formiche. Boll. Mus. Torino, ix, No. 186, 
4 pp. [Hymenoptera."] 
271. . Descriptions de deux fourmis nouvelles. Ann. Soc. ent. 
France, 1894, pp. 72-74. [ Hymenoptera .] 
272. . Descrizione di una nuova Formica di Sicilia. Natural. Sicil. 
xiv, p. 28. [ Hymenoptera .] 
273. . Estudios sobre las Hormigas de Costa Rica. An. Mus. Costa 
Rica, 1888—89, pp. 45-64, pis. i & ii. [Hymenoptera.'] 
This and the following were apparently intended to form part of a 
volume of An. Mus. Costa Rica ; but the other parts of the volume will, 
it seems, not appear. The paper will, therefore, stand as if it were a 
separate work. The numerous species, though given as new, have been 
previously described and recorded in Zool. Rec. xxvii. 
274. . Republica de Costa Rica. Estudio contributivo a la Biologid 
de las Hormigas. T. c. pp. 65-67. [ Hymenoptera .] 
Ants living in acacias : translation of part of paper that appeared in 
1891 [cf. Zool. Rec. 1891, Ins. Titles (240).] 
Emery, C. [See also Jiiering, H. von (491).] 
Eppelsheim, — . [See Hauser (415), and Reitter (892).] 
275. Escherich, K. Anatomische Studien iiber das mannliche Genital- 
system der Coleopteren. Zeitschr. wiss. Zool. lvii, pp. 620-641, 
pi. xxvi. 
Summary in Zool. Centralbl. i, pp. 480-482. 
