( ^ii ) 

 l)feu luucli iiuiMoved if BoisduviilV s|iet-ies ami geuom bad lieeii iiicui]iui'iittd into 

 the body of the Hevisioii instead of beiiij; giviu as an ajipendix. 



Till' ydiui.^'osl worl; on I lie Sj,hii,(ji<lai: of (lie globe is contained in Kirby's 

 CalaloiiHc of Leiiido/ilria llrtnoccra (l.si):,'). As a list of names tbis catalog-ne 

 has iieen of great help tn ns. The classitieation adopted iu it has been much 

 l.liinied by smue anlliors as iieing arbitrary. Bnt we think that one should not 

 expecl (iK) niiuli IVimu a eatabigne. Kven the Ijest is full of ernn-s, as a 

 caluioguei- of insi'ds eaiiiiot possibly have intrinsically worked out all the groui)s 

 catalogued. 



Besides tliesu live general works, then' are numerous treatises dealing with 

 the Spkimjidar of certain restricted districts. Apart from a host of pojiular 

 handbooks, there are two works on the Palaearctic Hawk Moths worthy of 

 special notice. These are by Bartel, iu lliihl, (irosssclnu. vol. ii., and by Tutt, 

 Brit. Lcji. vol. iii. Bartel gives lengthy and generally accurate descriptions, 

 but relies too mm li on others, whose errors he repeats without having examined 

 the insects himself and formed his own ojiinion. Tntt's work is of quite a 

 dilferent kind. It is the most intrinsic ever written on Palaearctic Lejiidoptera. 

 The third volume comprises only a portion of the Sphitu/idao ; the remainder oi 

 the family will appear iu the fourth. The work will be of the greatest help 

 to the scientist who knows the matter well enough to be able to distinguish 

 between what is scieutific and what ajijiears merely in a scientific garb. The 

 usefulness of the work conid have been improved, we think, by a condensing 

 of the contributions of the collaborators, and mistakes could have been avoided 



by the omission of references to foreign species with which the respective 

 collaborators were not sufficiently acquainted. However, as it is, there is nothing 



written anywhere on European Lepidoptera coming up to it in thoroughness. 

 The Indian fSphingidae are dealt with by Hampson in Blauford, Faima 



Brit. India, Moths vol. i. (189^). The volume should be consulted with some 



caution, since many distinct sj)ecies are treated in it as being identical. 



The species occurring in the Philippines are contained iu h>emper, Schmett. 



I'hilipp. vol. .\ii. (1896), where many figures of larvae and pupae are given. 

 Miskin gave a catalogue of the Australian Hawk Moths in the Proc. Roij. 



Soc. Queemluiid vol. viii. (isid), 



A monograiih of the North American Sphinyidin' by J. Smith is contained 



iu the Tram. A titer. Knt. Sac. vol. xv. (1888). It is the liest work on Nearctic 



Hawk Moths, though the elassificatiou is faulty in many respects, owing to 



Smith's limited acquaintance with the forms not found iu North America. 



The Cuban species are described and catalogued by Grote and Uobiuson in 



the .lo'ir. Enf. .Soc. Phihidi-Ipliin vol. v. and vi. (iNli.i. LsOT), and again by 



