Natural History of the Otiorhynclms snlcdfus. 



157 



4. 



63 



66 



greatly retarding the growth of the tree, and ultimately bringing 

 on premature decay. 



Fig. 66. a, section of the proposed sunk footpath between 

 Bayswater and Knightsbridge; entering at the middle point be- 

 tween Cumberland Gate and Silver 

 Street, Kensington Gravel Pits, on 

 the one road, and coming out at the 

 middle point between Hyde Park 

 Corner and Kensington church on 

 the other road : b shows a vertical 

 profile of the path, covered by the 

 horizontal iron jjratinff. Where this 

 path is crossed by gravel walks on 

 the surface, the gravel, and a margin of turf on each side of it, 

 can easily be supported by a flat brick arch, or a trough of cast 

 iron. 



Bayswater, March 5. 1837. 



Art. II. A Series of Articles on the Insects most injurious to Cul- 

 tivators. By J. O. Westwood, F.L.S., Secretary to the Entomo- 

 logical Society of London. 



No, 2. 



The Natural History of a Weevil which is very destructive to 

 Collections of succulent Plants. 



The Linnaean genus Curculio comprises a very numerous 

 assemblage of beetles, whose habits are entirely herbivorous, 

 and which are distinguished by having the front of the head 

 lengthened into a muzzle or snout, varying in its length and 

 thickness in the different species ; and by the antennee beinf 

 generally elbowed at the extremity of the long basal joint. The 

 two Linn£ean genera i^ruchus and ^ttelabus belong to the same 

 natural group to which the modern sectional name llhynchophora 

 (or rostrum-bearers) has been aptly applied by Latreille, divi- 

 sible into numerous subfamilies and genera. These insects are 

 known by the common name of weevils; and amongst their num- 

 ber are to be ranked some of the most destructive of the insect 

 tribes. Of these, the more obnoxious are, the well-known corn 

 weevil [Calandra granaria), the rice weevil {Calcindra oryzse), 

 the sugar weevil [Caldndra sacchari), the pulse beetle (Bruchus 

 granarius), the nut weevil (Balaninus nucum), and the vine 



