4 Ins. 
XIIT. INSECTA. 
ment of Doryctes gallicus , a Braconid. It has an important bearing on 
the general question of Insect metamorphosis. Wahl’s paper (1180) treats 
of the development in Diptera , and is also a study of some important 
points relating to the tracheal system. The memoir by Boas (109) brings 
out well several important considerations as to metamorphosis; and 
Lameere’s discourse (736) on this subject, though more metaphysical in 
nature, is of some interest. 
We are indebted to J. H. Fabre for another volume of his valuable 
series (351) of studies on habits and instinct. Hexneguy’s account of the 
various forms of parthenogenesis (533) is useful and interesting. Sladex 
(1083) has made some very suggestive observations on the habits of the 
associated bees Bornbus and Psithyrus. Perkins has called attention to a 
most remarkable special form of symbiosis between bee and Acari (892). 
Wasmann again discusses mental capacities and cognate phenomena (1193). 
Rubsaamen’s account of the Natural history of Cecidomyiidce (1006) pre¬ 
sents us with a resume of the great progress that has been made in the 
study of the very varied habits of these tiny and most fragile creatures. 
We have an additional account of the experiments of Staxdfuss (1111); 
and Plateau (939) has added another paper to his series of experiments 
on the relations between insects and flowers. 
Judd’s valuable contribution (612), on the efficiency of adaptations 
against the attacks of birds, must be consulted by all who are interested 
in this subject. Austen has given a translation of the important article 
by Koorevaar (52) on the habits of Hypoderma bovi-s. 
With regard to the post-dating of works, referred to last year, we have 
noted a case that it is worth while to point out. Two volumes of 
“ Zoologie descriptive” published in Paris and dated 1900, were purchased 
in London on Jidy 7tli 1899. How much earlier than this they w r ere 
actually published we cannot say. 
I. TITLES.* 
1. Abeille de Perrin, E. Malachides de Madagascar recueillis par 
M. Ch. Alluaud. Bull. Soc. ent. France, 1899, p. 194. \Coleoptera.~\ 
2. -. Description d’une esp&ce nouvelle de Colydien des Alpes- 
Maritimes. T. c. p. 408. [Coleoptera.\ 
3. Absolon, K. fiber die Fauna des Hohlen des mahrischen Devon- 
kalkes (Vorlaufige Mittheilung). Zool. Anz. 1899, pp. 315-317 and 
321-325. [ Collembolci. ] 
4. -. Vorlaufige Mittheilung fiber die Gattung Dicyrtoma und Hetero- 
murus hirsutus nov. sp. aus den Mahrischen Hohlen. T. c. pp. 493- 
496. [ Collembola .] 
5. Aldrich J. M. & Turley, L. A. A balloon-making fly. Amer. 
Natural. 1899, pp. 809-812. [Diptera.\ 
6. Alfken, J. D. Pyrameis ida, n. sp. Ein neuer Tagfalter nebst 
einer Varietat von den Chatham Islands. Zool. Anz. 1899, pp. 5-8. 
[Lepidoptera. ] 
7. -. Anthrena afzeliella Kirby und Verwandte. Ent. Nadir, xxv, 
pp. 102-106. [ Hymenoptera. ] 
* An asterisk prefixed to a quotation indicates that the Recorder has not seen 
the Journal or Work referred to. 
