TITLES. 
Ins. 3 
11. Aurivillius, C. Das Insekten leben in arktischen Landern. In 
Nordenskiold’s Studien und Forschungen veranlasst durch meiue 
Reisen im hohen Norden. Leipzig : 1885, pp. 387-439. 
A summary of the present condition of knowledge as to arctic ento¬ 
mology, with table of geographical distribution and generalizations on 
this subject. The question of the relations of insects to flowers is deal 
with in an extended manner, with the object of ascertaining what agree¬ 
ment there is between the distribution towards the north of insects and 
flowers. [For extract, vide Ent. M. M. xxi. p. 271.] 
12. -. Conspectus generum et specierum Brachyceridarum {Col.). 
(Efv. Ak. Forh. 1885, No. 7, pp. 5-24. 
2 new genera and about 24 new species are described. The treatment 
of Brachycerus is postponed. 
13. Baker, G-. T. Descriptions of some New Species of Lepidoptera 
from Algeria. Ent. M. M. xxi. pp. 241-245 & 268-270. 
13 spp. & var. nn. of Bhopalocera and Heierocera. 
14. Balbiant, E. G-. Contribution a 1’etude de la formation des organes 
sexuels che£ les insectes. Rec, Z. Suisse, ii. pp. 527-588, pis. xvi bis 
& xvii. 
The writer studied the formation of the internal sexual organs in the 
egg of Chironomus sp. ( Diptera ). He commences with a historical intro¬ 
duction, and then details his observations on the development of the 
organs in question, beginning with the newly-deposited egg, the observa¬ 
tions being continued till the larva was a few days old. In a third part, 
pp. 578-588, he gives a resume and reflections, concluding with a reference 
to the important question of the relation between the formation of the 
sexual organs and the phenomena of heredity. The plates represent 
sections of the egg in progressive stages of development, and the young 
larva, and the sexual cells and genital glands. 
15. Baly, J. S. The Colombian Species of the Genus Diahrotica 
\_Coleoptera\ , with Descriptions of those hitherto uncharacterized. 
Part i. J. L. S. xix. pp. 213-229. 
37 species are mentioned, of which no less than 28 are new ; the varia¬ 
tions of several previously described species are noticed. 
--[See also Godmwn & Salvin.] 
16. Bankes, E. A. [assisted by the Rev. C. R. DigbyJ. Lepidopterci of 
the Isle of Purbeck. P. Dors. N. H. vi. pp. 128-177, pi. xi. 
Extends throughout the order, and includes 879 species. The plate is 
devoted to Tineidce . 
17. Bargagli, P. Rassegna biolog'ica di Rincofori europei. [Continua¬ 
tion.] Bull. Ent. Ital. 1885, pp. 3-50 & 293-350. 
This is a compilation of observations of the habits of the perfect 
insects and larvae of the Curculionidce. These instalments carry the work 
as far as the genus Rhyncolus. 
ct- 
