(Psa) 
Ormerop (Eleanor A.) Notes of Observations of Injurious Insects. 1880. 
The Author. 
Manual of Injurious Insects, and Methods of Prevention. London, 
1881. The Author. 
Packarp (A. §.), Jun.,M.D. The Hessian Fly: its Ravages, Habits, Enemies, é&c. - 
8vo. Washington, 1880. The Author. 
On a Crayfish from the Lower Tertiary Beds of Western Wyoming. 
1881. The Author. 
Pasco (Francis P.) Zoological Classification : a Handy Book of Reference, with 
Tables of the Subkingdoms, Classes, Orders, &c., of the Animal 
Kingdom, their Characters, and Lists of the Families and Principal 
Genera. 2nd edition. 12mo. London, 1880. The Author. 
Prters (W. C. H.), J. V. Carus, and C. E. Adolph Gurstarcker. Handbuch 
der Zoologie. Zweiter Band. Arthropoden. 8yo. Leipzig, 1863. 
Sir S. S. Saunders. 
Puarnau (Félix). Recherches Physiologiques sur le Coeur des Crustacés Deca- 
podes. 2 Planches. The Author. 
PREUDHOMME DE Borre (A.) Description d’une espéce nouvelle du Genre Onitis 
suivie de celles des femelles des Onitis lama et Brahma, et de la 
Liste des Onitides du Musée Royal de Belgique. 8vo. Bruxelles, 
1881. The Author. 
De peu de valeur du Caractére sur lequel a été établi le genre ou sous- 
genre Rhombonyx. 8vo. Bruxelles, 1881. The Author. 
Liste des Criocérides recueillis au Brésil par feu Camille Van Volxem 
suivie de Ja Description de douze nouvelles espéces Américaines de 
cette tribu. 8vo. Bruxelles, 1881. The Author. 
Matériaux pour la Faune Entomologique de la Province d’Anvers. 
Coléoptéres. lére Centurie. 8vo. Bruxelles, 1881. The Author. 
Matériaux pour la Faune Entomologique du Brabant. Coléoptéres. 
lére Centurie. 8vo. Bruxelles, 1881. The Author. 
Matériaux pour la Faune Entomologique des Flandres. Coléoptéres. 
lére Centurie. 8vo. Bruxelles, 1881. The Author. 
Matériaux pour la Faune Entomologique du Luxembourg Belge. 
Coléoptéres. lére Centurie. 8vo. Luxembourg et Bruxelles, 1881. 
The Author. 
Matériaux pour la Faune Entomologique de la Province de Namur. 
Coléoptéres. 1ére Centurie. 8yo. Bruxelles, 1881. 
The Author. 
Psyche. Vol. III., Nos. 69—86. 1880 and 1881. The Editor. 
Revrer (O. M.) Ad cognitionem Reduviidarum mundi antiqui. 4to. Helsing- 
forsiz, 1881. The Author. 
Riuey (Charles V.) Philosophy of the Pupation of Butterflies, and particularly 
of the Nymphalide. The Author. 
Notes on the Grape Phylloxera, and on Laws to Prevent its Introduction. 
The Author. 
Hybernation of the Cotton-Worm Moth: ease with which mistakes are 
made. The Author. 
The Rocky Mountain Locust. Permanent Courses for the Government 
to adopt to lessen or avert Locust-injury. 8vo. Washington, 1880. 
(Author's Edition.) ! The Author. 
Further Notes on the Pollination of Yucca, and on Pronuba and 
Prodoxus. 8yo. 1880. The Author. 
Additional Notes on the Army-Worm (Leucania unipuncta). 
The Author. 
Some Recent Practical Results of the Cotton-Worm Inquiry by the 
U.S. Entomological Commission. The Author. 
‘The hitherto unknown Habits of two Genera of Bee-flies (Bombylide). 
The Author. 
