THE GENERAL SUBJECT. 
Ins. 153 
Ciirtstopii, H. Neue Lepidopteren des Amurgebietes (Fortsetzung). 
Bull. Mosc. lvi. 4, pp. 405-436, and Ivii. 1, pp. 5-47. 
Extends from Eudeniis to Aciptilia. A list of the new species described 
is added. 
Dewitz, H. Beschreibungen von Jugendstadien exotischer Lepidopte- 
ren. Verh. L.-C. Ak. xliv. pp. 247-271, pis. viii. & ix. 
Transformations of 25 Tropical American and East Indian species 
noticed. 
Farn, A. B. On the Diseases of Lepidopterous larvae. Ent. xv. 
pp. 73-75. 
Relates to “ pebrine ” and “ fiaquerie.” 
Gauchler, II. Untersuchungen fiber beschieunigte Ueberwinterung von 
Schmetterlingspuppen. Ent. Nachr. viii. pp. 36-38, 171 & 172. 
Kane, W. F. de V. Causes of abundance or otherwise of Lepido- 
ptera. Ent. xv. pp. 244-246. 
Meldola, R. Mimicry between Butterflies of Protected Genera. Ann. 
N. H. (5) x. pp. 417-425. 
The writer discusses the general question of mimicry, and agrees 
with F. Muller that the rarer of two mimicking species is always the 
mimic, and with Darwin that in the case of allied forms, the tendency 
to mimicry has been increased by blood-relationship. 
Muller, F. Bemerkenswerthe Fiille erworbener Aehnlichkeit bei 
Schmetterlingen. Kosmos, x. pp. 257-267, pi. vi. 
The writer thinks that it is necessary for insectivorous animals to test 
the edibility of Butterflies individually ; and that mimicked species 
probably appear on the wing some time before the mimics, so that their 
enemies have already had time to discover the inedibility of the former 
by experience. 
Pagenstecher, A. Ueber Zwitterbildungen bei Lepidopteren. JB. 
nass. Ver. xxxv. pp. 88-101, plate. 
Hermaphrodites of Sphinx convolvuli , L., Saturnia pavonia, L. ( = car - 
pini , W. V.) and Rusina tenehrosa, Hfibn., are described and figured. 
General remarks on hermaphroditism, and notes on previously observed 
hermaphrodites of S. convolvuli and S. pavonia are appended. 
Polateiew, N. Des muscles d’aile cliez les L^pidopteres Rhopaloceres. 
Hor. Ent. Ross. xvi. pp. xiv. 436 & 437 ; Troudy Ent. Ross. xiii. 
pp. 10-17, pi. ii. 
As in most other insects, the alary muscles of Lcpidoptcra form three 
groups : — (1) A modian dorsal musclo (generally doublo), which runs 
upwards longitudinally in the mesothorax, and depresses the wings ; 
(2) the lateral dorso-ventral muscles of the meso- and metathorax, which 
are situated close to the sides, and are fixed above to the articulation of 
the wings, which they serve to depress ; (3) middle dorso-ventral muscles, 
which are situated between the dorsal and lateral muscles, and are fixed 
