TITLES. 
Ins. 1 
251. Dyar, H. G. Oil variation in the venation of an Arclian, with 
notes on other allied genera. Psyche, vi, pp. 511 & 512, pi. xix. 
[Lepidoptera.il 
In Pyrrharctia iscibella “sufficient range of variation to found four 
genera upon.” 
252. . The larvae of the Clisiocampce. Canad. Ent. xxv, pp. 37-44. 
[j Lepidoptera.] 
253. ■' A new species of Hypopta. T. c. p. 220. [Lepidoptera.] 
254. . Synonymic and structural notes. Ent. News, 1893, pp. 33- 
36. [ Lepidoptera .] 
-. [See also Neumoegen & Dyar (666, 667, 668).] 
255. Eaton, A. E. A synopsis of British Psychodidcc. Ent. Mag. xxix, 
pp. 5-8, 31-34 & 120-130. [Diptera.] 
Edwards, J. [See Elwes & Edwards (259, 260).] 
256. Edwards, W. II. Tho Butterflies of North Amoricn. Third 
Series. Part xiv. [Lepidoptera.] 
257. Eiirmann, G. A. A now Ilesperid from West Africa. Eut. Nows, 
1893, p. 309. [ Lepidoptera .] 
258. Eimer, G. H. T. Bemerkungen zu dem Aufsatz von A. Spuler : 
Zur Stammesgeschichte der Papilioniden , iu Band 6 dieser zeit- 
sebrift, nebst einem Zusatz : Ueber Thatsachen in Fragen der 
Entwicklungslehro. Zool. Jahrb. Syst. vii, pp. 187-205. 
Criticises Spuler on the subject of venation ; and states his own views 
on the origin of species. 
259. Elwes, H. J., & Edwards, J. A revision of the genus Ypthima , 
with especial reference to the characters afforded by the male 
genitalia. Tr. ent. Soc. London, 1893, pp. 1-54, pis. i-iii. [ Lepido- 
ptera .] 
260. & >. A revision of the genus (Eneis . T. c. pp. 457-481, 
pi. xv. [ Lepidoptera .] 
Elwes, H. J. [See also Warren (1025).] 
261. Emery, C. Voyage de M. Ch. Alluaud aux lies Canaries. Formi- 
cides. Ann. Soc. ent. France, 1893, pp. 81-88. [ Hymenoptera .] 
262. . Notice sur quelques Fourmis des lies Galapagos. T. c. 
pp. 89-92. [ Hymenoptera .] 
263. . Voyage de M. E. Simon 5, Pile de Ceylan. Formicides. T. c. 
pp. 239-258. [ Hymenoptera .] 
An appendix relates to some species from Aden. 
264. . Voyage de M. E. Simon aux lies Philippines. T. c. pp. 259- 
270, pi. vi. [ Hymenoptera .] 
265. -. Iutelligenz und Instinkt der Tiere. Biol. Centralbl. xiii, 
pp. 151-153. 
