1883.] - 119 



mologist's Annual " (1861-62-63-& 65), the "Entomologist's Monthly Magazine," 

 &c., &c. Probably his last entomological note was the description of a new species 

 of Eupithecia {E. jasioneata) in this Magazine, vol. xviii, p. 80 (1881). Latterly, 

 however, for a considerable time, he was more especially devoted to Horticulture, upon 

 which subject he was regarded as an authority, especially in connection with the 

 smaller bulbous-rooted plants, in search of which he made more than one long 

 journey to parts of Europe little frequented by English tourists : for some time he 

 was Chairman of the Floral Committee of the Eoyal Horticultural Society. 



Mr. Crewe was never robust ; but, until recently, his appearance of health had 

 so vastly improved on that which he bore in comparatively early life, that it was 

 with considerable surprise we heard of his death. 



Les Odonates dtt Japon, par M. de Sblts-Longchamps. Bruxelles, 1883, 

 pp. 66, imp. 8vo. (Extracted from the Annales de la Societe Entomologique de 

 Belgique, tome xxvii, pp. 82—143). 



In his introductory remarks the author states that the idea of a Monograph of 

 the Dragon-flies of Japan was conceived (and carried into effect, in its initial stage, 

 in MS.) in 1841, from an examination of the materials collected by Yon Siebold, 

 existing in the Leyden Museum ; the number of species was then only 22. At the 

 present time he is acquainted with 67 species. This increase is largely due to the 

 discoveries of Englishmen, and especially to Messrs. H. Pryer, Gr. Lewis, and J. 

 Milne. The Dragon-fly fauna is a mixture, in which the European and Sibei-ian 

 element forms one-half, the Indo-Chinese a quarter, and the remainder may be con- 

 sidered special. Eight species are truly pala;arctic (including Libellula qicadrima- 

 culata and Lestes sponsa, which are British) ; six others are scarcely distinct from 

 their European (or Siberian) representatives ; and sixteen more are of a decidedly 

 European facies. Just as occurs in Lepidoptera, the tendency of Japanese forms is 

 to exceed in size their European sub-equivalents (thus Diplaoo data is scarcely to be 

 distinguished from Z>. jaerfewow^ana, excepting by its greatly superior size). The 

 number of species of true Eiu'opean Dragon-flies rests (and seems likely so to do) 

 at about 100. The author is of opinion that it will not be possible to record a similar 

 number from Japan. We rather incline to a more considerable estimate. Notwith- 

 standing the very important additions made within the last few years, it must be 

 remembered that no entomologist specially conversant with Dragon-flies has collected 

 in the islands, that many species are so much alike when on the wing as to deceive 

 even the most experienced Odonatists, and that their capture is frequently difiicult. 

 Therefore, we predict that at the expiratioii of another forty years, more than 100 

 Japanese species will be known, and that the author's opinion as to the Japanese 

 themselves playing an important part in the discovery (and working out) of new 

 forms, will prove to have been prophetic. We have by no means heard the last of 

 "Les Odonates du Japon." 



The Zoology of the Voyage of H.M.S. Challenger. Part XIX. Report 

 ON THE Pelagic Hemiptera, by F. Bttchanan White, M.D., F.L.S. Loudon : 

 Longmans & Co., &c., 1883. 80pp. 4to, 3 plates. 



