INSECTA. 271 
Kraatz, Gt. Necrology Carl Heinrich von Hey den. Berliner 
entom. Zeitschriffc^ 1866^ pp. 305-316. 
Contains a life of Von Heyden^ with a list of his writings. 
Low^ Franz. Zoologische Notizen. Erster Serie. Verhandl. 
zool.-hot. Gesellsch. in Wien^ Band xvi. pp. 945-956. 
Contains notices of species of Insects belonging to various 
orders. 
Lubbock^ Sir John. ^On the Metamorphoses of Insects. (Proc. 
Boyal Instit.) Ann. & Mag. Nat. Hist. 3rd ser. vol. xvii. 
pp. 375-381. 
Motschulsky^ V. DE. Catalogue des Insectes rc9us du Japon. 
Bull. Soc. Nat. deMoscou^ tome xxxix. part 1. pp. 162-200. 
This paper includes a list of Insects of all orders collected in 
Japan by Madame Gaskevitch^ with descriptions of new species. 
Muller, Albert. A Glance at a few Facts connected with 
Alpine Entomology. Zoologist, 1866^ pp. 273-279. 
Packaru, a. S. On certain Entomological Speculations. A 
Review. Proc. Ent. Soc. Philad. vol. vi. pp. 209-218. 
In this paper the author notices a paper by Walsh, On cer- 
tain Entomological Speculations of the New^England School of 
Naturalists^^ (see Record,^ 1864, p. 332). He maintains the 
analogy of the larva3 and the pupte of insects to the adult forms 
of worms and Crustacea, and urges especially that the change 
from the form of the larva to that of the pupa and thence to the 
perfect insect is a gradual one, and not brought about " by sud- 
denly moulting their skeletons,"’^ as stated by Walsh. Packard 
refem especially to the metamorphosis of the Cecidomyice, and 
maintains the correctness of the statements of FI arris and Fitch, 
and the justice of the conclusions drawn from them. In the 
conclusion of the paper, the author remarks upon some Tesem-^ 
blances of a mimetic nature and upon the general question of 
aberrant forms. The latter, he holds, ^‘^show a constant ten- 
dency to assume the forms of the higher groups, or, if degraded 
in a marked degree, revert to the archetypal articulate form.^'* 
PiiTLipri, R. A. Einige insekten von Chile. Stettiner entom. 
Zeitung, 1866, pp. 109-117, taf. ii. 
This, which is the first part only of a paper on Chilian In- 
sects, contains descriptions of several new species and genera of 
various orders. 
Rondani, Camillo. Note Entomologichc. Archiv. ZooL, Anat. 
&e. vol. iv. pp. 189-196, tav. 7 : April 1866. 
Notes on the Hymen opterous parasites of Cecidomyia frmnen* 
taria, and on the Italian species of Triplmna, 
SicHEL, J. Considerations sur la fixation des limites entro 
Fcspece ct la variete, tirecs principalement de ketude dc 
