966 EXPERIMENT STATION RECORD. 



at tho first molt and succeeded by ordinary hairs. lieneath the hairs he finds two 

 kinds of hypodermis cells, one with branching nuclei and forming monocellular 

 glands, and a cell without a branching nucleus that becomes greatly developed 

 during molting, and further small cells that form the chitinous collars of the hairs. 

 The trichogen cells described by A. S. Packard the author considers glandular cells 

 and the poison cells as hypodermal cells and collar cells. 



Some remarks on the developmental states of the leaf wasps, Rudow (lllus. 

 Wchn8chr. Ent., ,? (1897), No. 17, pp. 263-266, figs. 14).— The galls produced by Trhhi- 

 osoma soibi, Abia fasciata, A. sericea, etc., arc described. 



Descriptions of new cynipidous galls and gall wasps in the United States 

 National Museum, W. H. Ashmead (Proc. U. S. Nat. Mus., 19 (1897), pp. 113-136).— 

 A new genus, Compsodryoxeuus, and 43 new species are described. 



Dichelomyia galls, C. Schroeder (lllus. Weknsehr. Ent., 2 (1S97), No. 22, pp. 

 339-345, figs. 6). — The form of the galls and the leaf deformations produced by flies 

 of this group are described and figured. 



Some notable gall formations, Rudow (lllvs. Ztsckr. Ent., 2 (1897), No. 41, pp. 

 645-649). — The formation and the form of galls produced by plant lice on-Populus 

 and some other trees are described. 



Three interesting Staphylinidae from Queen Charlotte Islands, J. H. Keen 

 (Canad. Ent., 29 (1897), No. 12, pp. 28-5-287, figs. 3). — TAparocephalus brevipennis and 

 Tanyrhinua singularis are discussed. 



The life history of Epeiranthis obfirmaria, T. W. Files (Canad. Ent., 29 (1S97), 

 No. 11, pp. 258,'259). — The adult, eggs, and larva are described. The larva' fed on 

 Vaccinium, Cassandra, etc. 



Notes on the life history of Colias interior, H. H. Lyman ( t anad. Ent., 29 (1897), 

 No. 11, pp. 249-258). — The egg, the larva in its various stages, the chrysalis, the pupa, 

 and the adults are described. 



Notes on Grapta interrogationis, H. H. Lyman and A. A. Winn (Canad. /hit., 29 

 (1897), No. 12, pp. 213-217). — This is a collection of miscellaneous notes on the life 

 history, etc., of this insect. It is thought that the third brood must certainly 

 hibernate. 



A new food plant for Papilio asterias, 0. II. FRENCH (Canad. Ent., 29 (1897), No. 

 11, pp. 263, 264). — Iiuta gravolem and Fecniculum officinale. 



The agrarian Acari, A. Berlese | Biv. Patol. Veg., 6, No. 1-5, pp. 1-66, figs. 40, 

 pis. 4). — This is a portion of a monograph on the subject. This part of it is occupied 

 with a description of the anatomical features, the terminology, and the habits of the 

 agrarian mites, and the influence of surrounding conditions upon them. Consider- 

 able space is also given to a discussion of their means of offense and defense. The 

 means of defense the author classes as epidermal pi'ojections of the integument, cit- 

 ing as example Leiosoma palmieinetium and Tegeocranus cepheiformis ; peculiar secre- 

 tions, such as are found in the Tyroglyphida* ; peculiar capsules constructed by the 

 rnites, and protective coloration. 



Life history of Pyromorpha dimediata, H. G. Dyar (Psyche, No. 258, Apr., pp. 

 128, 129). — The peculiar habit of the larva' of this insect has hrtherto prevented its 

 detection, but the author has found it below fallen leaves in oak woods. The period 

 from egg to pupa state is stated to be 3 months, or from June 15 to September 15. 

 The pupal stage passes the winter. The colorization is dark, so as to harmonize with 

 the surroundings. The egg and 6 larval stages and the pupa- are described some- 

 what in detail. 



New species of Chionaspis, R. A.. Cooley (Canad. Ent., 29 (1897), No. 12, pp. 

 278-2S2). — Ch ionaspis coclerelli taken from palm imported from China to San Fran- 

 cisco, C. aucubce imported on aucuba from Japan, C. wistaria' found on bark of wis- 

 taria from Japan, C. pinifoVw heterophyllce found on Cuban palm (Pinus heierophyllce) 

 from Florida, and C. latissima Taken from the under side of the leaves of Distylium 

 racemo8um from Japan. 



