144 • [June, 



notice in our next issue. The Uev. George Crawsliav, Vicar of I\relchbourne, 

 Bedfordshire, died in December last, as we gather from a " Memoriam " notice 

 sent out b}' his brother, Captain Richard Crawshay. — Eds. 



f\cuicuj. 



''MONOGRAPIA DF.LLK CoCCINIGLIE ItALIANE," by GuSTAVO LkONAEHI : 



€(3ited by Pr(jt'. F. Sii.vestri ; Portici, stab. Tip. Eineoto della Torre, 1920. 

 (British Agents, Dulau & Co., London. £2.) 



Tlie present work is a posthumous publication, edited under the careful 

 supervision of Prof. Siivestri, who has added an appendix of 30 pages. 

 Dr. Gustavo Leonardi, the author of the Monograph, who died in the year 

 1918, at tlie early age of 49, was well known to students of the Coccidae 

 throughout the world by his many valuable papers on the Scale Insects, 

 including cntical revisions of most of the gerera of the subfamily Diaspidinae 

 The present volume, comprising 555 pages and including 375 text-figures, 

 describes in considerable detail the 50 genera and 147 species that occur 

 in the kingdom of Italy. The earlier chapters are devoted to the general 

 characters of the family, to the natural enemies of Coccidae, and to remedial 

 measures, with the last of which subjects Dr. Leonardi was very largely con- 

 cerned in his duties as Entomologist to the Royal Agricultural School at 

 Portici. The remaining chapters provide excellent descriptions of the morpho- 

 logical characters of the various species, with more or less complete life- 

 bi&tories of most of them. 



I notice that the author includes, in the genus MonojMchus, the insect tliat 

 has hitherto been known as Guerinia (or Guerlniellu) serrattdae, and has also 

 reduced to the rank of synonyms the genera Drosicha, I'essarcdwUis, Lluveia, 

 and Ortonia. I may say that I am in full agreement with this synonym}', and 

 I would add Monophlebulus also to the list. 



An error, for which I was originally responsible, has unfortunately been 

 repeated in this work. The author describes and figures, under the name 

 Aspidiotus lataniae Sign., a species which is almost certainly A. destructor of 

 Signoret, and cites transparens Green as a synonym of lataniae — as represented 

 in Parts of my " Coccidae of Ceylon." 1 have since shown (Ent. Mo. Mag., 

 3rd ser., x, p. 181, Aug. 1899), after examination of type material of Signoret's 

 species, that transparens (which I now consider to be a varietal form of 

 destructor) is quite distinct from lataniae, and that the hitter is — in all proba- 

 bility — equivalent to Comstock's cydoniae. 



I have no hesitation in saying that Leonardi's Monograph will be an 

 essential item in the library of every serious student of the Coccidae. — 

 E. E. Gkeen. 



