THE GENERAL SUBJECT. 
Ins, 5 
[Ormerod, E. a.] Observations of the Effects of Low Temperature on 
Larva©. Tr. E, Soc. 1879, pp. 127-130. 
During the severe winter of 1878-79, the authoress made observations 
on Insects of various orders exposed to the full effects of the cold ; but 
she found that they invariably appeared to recover perfectly (whatever 
their stage) as soon as they were thawed. 
. Sugar-cane Borers of British Guiana. P. E. Soc. 1879, pp. 
xxxiii.-xxxvi. 
. Notes on the Prevention of Cane-Borers. P. E. Soc. 1879, 
pp. xxxvi.-xl. ; see also p. xxxi. 
In these papers, the authoress discusses the damage caused to sugar- 
canes in Guiana and the West Indies and elsewhere by Calandra palmarum 
and C. saccJiari and a moth {Procerus sp. ?). The habits of the insects, 
and the modes of extirpating them, are also noticed ; burning the fields, 
however, is not to be recommended, as this destroys the Ants and other 
natural enemies of the obnoxious insects. (The moth is probably 
Phalama saccharalis, Fabr. ; R. McLachlan, op>. cit. p. xl.) 
Osten-Sacken, 0. R. Ueber einige Falle von Copula inter mares bei 
Insecten. S. E. Z. xl. pp. 116-118. 
Relates W Melolontha vulgaris, Rhagonycha melanura, Lampyris lusi- 
tanica, and Bombyx mori. 
Provanctier, — . Additions k la Faune Entomologique de la Province 
de Quebec. Nat. Canad. xi. pp. 301-329, woodcuts. 
Includes Orthoptera and Coleoptera, none new. 
Riley, C. V. Parasites of the Cotton Worm. Canad. Ent. xi. pp. 161 
& 162. 
7 Hymenoptera and Diptera mentioned, 3 of which are described as 
new. 
Rendu, V. Moeurs pittoresques des Insectes. Paris: 1879, 8vo, pp. viii. 
& 324. 
Sanborn, F. G., & Lintner, J. A. An account of the collections 
which illustrate the labours of Dr. Asa Fitch. Psyche, ii. pp. 
273-276. 
Saussure, H. de. Sur le genre Hemimerus, Walk., paraissant former 
un ordre nouveau dans la classe des Hexapodes. M<5m. Soc. Phys. 
Genev. xxvi. pp. 399-418, pi. i. 
Hemimerus palpoides, Walk., was regarded by that author as an 
Orthopterous insect. It is remarkable for the unique character of a 
second labium, and has affinities both to the Orthoptera and Thysanura, 
but is nearer to the former. Saussure treats it as the type of a new Order 
(Diploglossata), characterized as follows: Corpus ovatum, depressum, 
crustaceum, blattiforme, apterum. Caput deplanatum, antrorsum ver- 
gens. Instrumeuta cibaria : — (a) Labia 2-superposita, utrumgue palpi 2. 
Lingula transversa brevissima, vix ulla. (b) Maxillae 2 palpigerse. 
(c) Mandibuloe 2-articulat8e, manducariae. (d) Labrum perspicuum, 
transversum. Pedes gressorii, plantigradi, breves, tarsis articulatis. 
