174 
ZOOLOGICAL LITERATURE. 
lime and elder trees; and abnormal antennal formation in 
Syromastes margmatus. 
Cohn, Ferdinand. Untersuclmngen Uber Insectenschaden auf 
den sclilesisclien Getreidefeldcrn in Sommer 1869. Ab- 
liandlungen der Sclilesisclien Gcsellscli. fiir vaterl. Cult. 
(Naturvviss. u. Med.) 1868-9, pp. 177-199. 
Describes tlic economy and ravages of species of Osemis, 
JassuSf Cecidomyiay ChloropSy Aphis j Sir ex ^ Thrips^ and Tipula. 
Cornelius, C. Vogelnester und Insecten. Stettiner entom. 
Zeitung, 1869, pp. 407-410. 
The author records the occurrence of numerous species of 
insects, principally Coleoptera, in the nests of birds (chiefly 
swallows). 
CuRioNi, Giulio. Notizie sopra un insetto die danneggia i 
campi del grano turco. Reale Istit. Lomb. Scienze e Lett. 
(Rendic.), ser. 2. vol. i. fasc. xiii. 1868, pp. 670, 671. 
Insect not known, except in larval state. 
Darwin, Charles. Notes on the fertilization of Orchids. An- 
nals & Mag. Nat. Hist. 4th series, iv. pp. 141-159. 
These notes are supplementary to Darwin^s great Avork on the 
same subject, and consist of fresh facts and observations, cor- 
rections of errors, and confirmations of statements. They are 
divided into paragraphs to be added to specified portions of the 
original work, and especially treat of Hymenoptera and Dipt era. 
Dohrn, C. a. Linnaeana. Stettiner entom. Zeitung, 1869, 
pp. 411-425; 1870 (pub. Nov. 1869), pp. 90-97. 
Dohrn gives biographical particulars &c. of Linne. 
Gan IN, — , Beitrage zur Erkenntniss der Entwickclungs- 
geschichte bei den Insecten. Zeitschr. f. wisseiisch. 
Zoologie (Siebold und Kolliker), xix. 1869, pp. 381-4-51, 
Tab. xxx.-xxxiii. 
The author enters at length upon the question of develop- 
ment in insects, giving in detail the earlier stages of Platyg aster, 
Polynema, Teleas, and Ophioneurus, which are copiously illus- 
trated under high powers. 
Giuliani, Vittore. Acclimatazione spontanea. Bull, della 
Societk Entom. Itabana, i. fasc. iv. pp. 268-270. 
The author makes some short remarks upon the emigration 
of insects, giving particulars of the invasion of western Piedmont 
by an enormous sAvarm of Anax mediterraneus, which species 
appears to have become naturalized there, and to occupy a space 
of two years for its metamorphosis. 
Girard, Maurice. Etudes sur la chaleur libre degogee par les 
animaux invertebres, et specialement les insectes. Ann. 
