334 THE ENTOMOLOGIST. 



reference, for instance, to Hemaris fuciformls, it is noted as " exceed- 

 ingly rare, if not entirely absent in Scotland and Ireland." No one, 

 after this, will deny that these extended lists serve a purpose other 

 than that for the collector. 



In conclusion, there is only one matter we really regret, and that 

 is that we have had to wait two years for the present instalment. It 

 is pretty certain, however, that the book is all the more complete. 



W. J. K. 



Eecent Economic Literature. 

 . (By G. W. KiRKALDY, F.E.S.) 



G. Darboux and C. Howard. " Hilfsbuch fiir das Sammeln der 



Zoocecidien mit Beriicksichtigung der Nahrpflanzen Europas und 



des Mittelmeergebietes," pp. xii and 68. Berlin, 1902. Gebriider 



Borntraeger. 



This is a list of the " gall-makers " of Europe and the basin of the 



Mediterranean, arranged under their respective plants, the latter being 



catalogued alphabetically under their genera and species. The location 



of the attack is also indicated by signs. The title-page aud preface 



are in German and French, and there is an alphabetical appendix of 



183 genera of gall-makers. The little work is plainly but well " got 



up," and of convenient compass,- and should be indispensable to 



students of galls aud economic entomologists generally. 



Proceedings of the 18th Annual Meeting of the Association of Eco- 

 nomic Entomologists (1902, U. S. Dep. Agric. Entoin. n. s. 

 Bull. xxxi. pp. 1-103 ; two plates and four text fig.). 

 Among the numerous interesting papers read at the 1901 meeting 

 were E. P. Gillette's account of the Codling Moth [Carpocapsa poino- 

 nella), and notes on Colorado Insects ; E. P. Felt, ou the Hessian Fly 

 {Cecidomyia destructor), and observations ou forest aud shade tree 

 insects in New York State ; W. M. Scott aud W. F. Fiske, on " Jar- 

 ring for the Curculio," writh a list of tbe numerous Pihynchota and 

 Coleoptera collected ; C. L. Marlatt's Preliminary Report on the San 

 Jose Scale ; and H. Gossard's Review of the Wiiitefly (Aleurodes citri) 

 problem. The discussion on the San Jose Scale ( Aspidiotus perniciosus) 

 seems to have been very animated, Marlatt and Howard holding that 

 the pest was introduced from America into Japan, while Cockerell and 

 Kellogg considered that it came to America via Japan. The Japanese 

 forms were generally considered to be the true perniciosus. 



E. E. Green. " Mosquitoes and Malaria" (1901, December, Botanic 

 Gardens, Ceylon ; Circular, 1st series, no. 25, pp. 345-68). 

 In common with all other practical investigators. Green holds that 

 the connection between malarial fever and mosquitoes has passed out 

 of the hypothetical stage ; the only debatable point, even about which 

 there is very little difference of opinion, is " whether the mosquito is 



