192 Entomological Magazine. 
viding systematist, form a small group, characterized by smaller 
size, but thicker and more robust make, a very general similarity 
of plumage both in marking and distribution, a bill of moderate size, 
and often marked with blotches of dark colour. In the same manner 
might be separated the next birds*, which indeed has been done by 
our author under the title of Aulacorhinchus ; they exhibit plu- 
mage entirely of a grass green, and the size of the bill is not compa- 
ratively large, but in neither case do we now think this necessary. 
These birds of green plumage were formerly known only by P. tulca- 
tus, Swain, from specimens in the collection of Earl Derby, but they 
have been increased by four in addition : P. prasinus, Lichtcn. P. 
Derbianus pavoninus, and hazmatopigius, Gould ; the last, at once 
distinguished by a crimson rump, a variation of colour not seen in 
any of the others bearing this plumage. 
In addition to the figures and descriptions of the birds there is an 
interesting essay on " the Anatomy of the Toucan" by Mr Owen, with 
a plate exhibiting the tongue and the feet, and a section of the bill. 
TRANSACTIONS AND PERIODICALS British. 
The Entomological Magazine. London, January and April, 1836. 
THE January number commences with, 1st, Wanderings and Ponderings of an 
Insect-hunter, a discursive and affected paper 2. A. H. Haliday, M. A. Bri- 
tish species of the Dipterous Tribe Spkceroceridce. In this paper, the arrange- 
ment and nomenclature of Macquart is adhered to, and thirty-eight species are 
described 3. Portions of a letter from the author of the letters of Rusticus to 
Edward Newman. These extracts contain observations on certain species of 
Aphides, and on the Slacks or larvae of the Athalia centifolice, so destructive to 
the young turnip plant 4. Francis Walker on the species of Teleas, &c. 
5. J. V. Thompson, F. L. S. Deputy- Inspector of Hospitals. Of the double 
metamorphosis in Macropodia phalangium or Spider Crab, with proofs of the 
larvse being Zoea in Gegarcinus hydrodomus, Thelphusa erythropus, Eripea Car- 
ribcea, and Graspus pelagicus, an interesting paper, but the proofs are scarce- 
ly so satisfactory or fully detailed as might be wished for. 6. Notes on vari- 
ous Insects, by lonicus 7. Henry Metford, M. R. C. S. on the origin of the 
Entozoa in the bodies of animals, a paper of interest, in which the author en- 
deavours to prove, that none of the hypotheses hitherto advanced can be sup- 
ported, or are sufficient to account for the origin of these beings 8. Francis 
Walker, Notes on the genus Aphis 9. Varieties, among these : the capture of 
various insects is recorded, among them Colias hyale and electra Deilephila 
galii, ( Sphinx ) convolvuli, &c. 
The contents of the April number are, 1. Travels through North and South 
Carolina, Georgia, &c. By William Bartram. Extracts 2. Appendix to Captain 
Sir John Ross's Narrative of his second voyage. Extracts, with a catalogue of the 
