ENTOMOLOGY. 467 



ness to act as an insecticide before it is oxidized by the soil. The 

 amount of phosphureted hydrogen discharged varies from 11 to 98 

 per cent. In the latter ease it is in the presence of a large amount of 

 water and ignites spontaneously. As an insecticide the gas is thought 

 better than bisulphid of carbon. Experiments are noted in which 

 ptaosphid of calcium was employed alone, and the conclusion is drawn 

 that this is not sufficiently effective and is moreover too costly. Fur- 

 ther, it is noted that phospho-carbid has been used in various amounts 

 and shown to be effective when used at the rate of 100 gm. to a plant, 

 and further, that 200 gm. to a plant does not injure the latter. 



Report of the professor of biology and geology, J. H. Paxtox ( Ontario. Agr. Col. 

 and Expt. I'm in Ept. 1896, pp. 5-20, figs. 5). — The character of the work in the labo- 

 ratory is described, as well as the general and practical work of the author. Bor- 

 deaux mixture was tried as an insecticide with good results. A list of insects identified 

 is given, and the pear tree slug (Eriocampa cerasi), nematodes, spring cankerworm 

 I Paleacrita vernata), red legged grasshopper (Melanoplusfcmiir-rnbrum), tussock moth 

 (Orgyia leucostigma), and the remedies against them noted. 



The morphology and classification of the Pauropoda, •with notes on the 

 morphology of Diplopoda, F. ('. Kexyox (Tufts College Studies, 5 (1895), No. 4, pp. 

 77-146, pis. i.figs. 2; abs. in Zool. Jahresbir., 189'i, Arthropoda, p. 45). 



A glossary of entomology, L. Failla-Tkdai.di (Boh Naturalista, 17 (1897), No. 

 6, pp. 7ft, 77). — A continued article that may be of use to readers of Italian entomo- 

 logical literature. 



Systematic and synonymical catalogue of the Hymenoptera thus far 

 described: VIII. Sphegidae, C. W. de Dai.la Torre (Catalogue Hymenopiorum 

 hueusque descriptorum systemalicuset synonymicus. VIII. Fossorus(Sphegida'). Ltipsic: 

 Engelmann, 1897, pp. 749; abs. in Zool. Centbl., 4 (1897), No. 17, pp. 494, 49-7).— This 

 takes in the group of digging wasps in its widest sense, i. e., the 3 families Ileter- 

 ogynse, Pompilidse, and Sphegidae, with over 9,000 species. The author recognizes 6 

 families among them, viz, Mutillidie, Thynnida-, Scoliida-, Sapygidse, Pompilida-. 

 Crabronidse. 



A preliminary classification of the species of the genus Acronycta of tem- 

 perate North America, J. B. Smith (Ent. News, S (1897), No. 6, pp. 140-153). 



Researches on the morphology of Sirnondsia paradoxa, and some other nema- 

 todes parasitic in Sus scrofa, G. P. Piaxa (Atti Soc. Hal. Sci. Nat., 1897, Jan.; abs. 

 in Centbl. Bali. u. Par., 1. AM., 21 (1897), No. 22, 23, p. 887). 



Contributions from the New Mexico biological station : V. Some new 

 Hymenoptera from the Mesilla Valley, New Mexico, T. D. A. Cockerell( Ann. 

 Mag. Nat. His., 6. ser., 19 (1897), No. 112, pp. 394-403).— Centris casalpinim n. sp., C. 

 cceaalpinia rhodopus n. var., C. hoffmanseggias n. sp., Perdita erigeronis n. sp., Podalirius 

 lesquerellce n. sp., Alcidamea biscutellce n. sp., Chrysis bigelovi(e n. sp., Ammoplanus 

 sulicis n. sp., Spilochalcis mesilla' n. sp. 



Antennal structure of certain Diplosids, E. P. Felt (Psyche, 8 (1897), No. 249, 

 pp. 3-5, pi. 1). — Notes peculiar arched filaments arising from the bases of the termi- 

 nal and penultimate segments of the antennae of the male Diplosis pyrirora. 



The evolution of the ccelomic gregarines of the house cricket, L. C'uenot 

 (Compt. Bend. Acad. Sci. Paris, 125 (1897), No. 1, pp. 52-54). 



Life history of Euchaetes eglenensis and comparison with Collaris, H. G. Dyar 

 (Psyche, 8 (1897), No. 253, p. 70). 



On the biology of Camarota flavitarsis, P. Marchax (Ent. Monthly Mag., .'. ser., 

 33 (1897), No. 86, pp. 30, 31). 



On Phimophorus spissicornis, A. Handeirsch (Verhandl. l\ /.. zool. hot. Gesell. 

 Wien, 47 (1897), No. 6, pp. 408-410, figs. 2).— This hemipteron is described and 



