4 Ins. 
INSECTA. 
ptera, vol. vi. pt. 1, by M. Jacoby, pp. 1-72, pis. i.-iii. Lepidopiera—- 
llhopalocera^ by F. D. Godmau & O. Salvin, pp. 57-88, pis. v.-viii. llhyn- 
chota^ by W. L. Distant, pp. 1-88, pis. i.-viii. 
Goss, H. Introductory Papers on Fossil Entomology, Nos. 10& 11. Ent. 
M. M. xvi. pp. 176-181 & 198-201. 
Relates to the insects of the Miocene and Quatenary periods. 
. [See Bargagli, P.] 
Hartwig, R. Anlage der Keimblatter bei den Insecten. Jen. Z. Nat. 
xiv. pp. 124-128. 
The writer concludes that the mesoblast of insects is separated from the 
endoblast by a fold, and that the body-cavity first originates in a bifur- 
cation of the rudimentary intestine. 
Hauser, G. Physiologische und histiologische Untersuchungen fiber das 
Geruchsorgan der Insecten. Z. wiss. Zool. xxxiv. pp. 367-403, pis. 
xvii.-xix. 
The sense of smell appears to reside in the antennae, which are always 
more strongly developed in the male than in the female. Insects 
deprived of their antennae are unable to find their way to odoriferous food 
placed near them, and in most cases appear to have lost the sexual 
instinct. The writer details his histological observations on the antennae, 
&c., of a large number of insects of different orders, and arrives at the 
following conclusions : — The olfactory organs of all the Orthoptera^ 
Fseudo-Neuroptera, Diptera, and Hymenoptera, and of a large proportion 
of Lepidoptera, Neuroptera, and Coleoptera, consist of (1) a strong nerve 
rising from the cephalic ganglion, and running into the antennae. (2) A 
perceptive apparatus, consisting of terminal points of the hypodermis, 
connected with the fibres of the nerves. (3) An accessory apparatus, 
formed by furrows or pits filled with a watery fluid, which are to be 
regarded simply as indentations of the epidermis. 
Hubbard, H. G. Two days’ collecting in the Mammoth Cave, with 
Contributions to a Study of its Fauna. Am. Ent. iii. pp. 34-40 & 
79-84, figs. 8-10 & 19-24. 
S everal of the more interesting insects, &c., are described and figured. 
Jaworowski, a. Ueber die Entwicklung des Rfickengefasses und 
speciell der Musculatur bei Chironomus und einigen anderen Insecten. 
SB. Ak. Wien, Ixxx. Abth. 1, pp. 238-258, pis. i.-v. 
Preliminary notes, from a larger work in progress on the same subject. 
The author’s conclusicns are as follows : — (1) Every nucleus in the con- 
tractile epidermis of the heart (Herzwand) is accompanied by a retractile 
cell ; (2) every circular muscle is developed from two lateral cells, which 
partly coalesce on the median line ; (3) a portion of the muscles of the 
heart fulfils the functions of valves. 
Joseph, G. Yorlafifige Mittheilungen fiber Innervation und Entwicke- 
lung der Spinnorgane der Insecten. Zool. Anz. iii. pp. 326-328. 
Relates to Lepidoptera, Hymenoptera^ and Neuroptera^ but the paper 
does not admit of abridgment. 
