446 Mr. J. Walton on the genus Otiorhynchus. 



taken by the late Rev. G. T. Rudd on the walls of his garden, at 

 Kimpton, near Andover. " On sandy banks, near Ventnor, 

 Isle of Wight/'— Mr. J. F. Dawson. 



2. Otiorhynchus sulcatus. Fab., Marsh., Gyll., Steph., Schonh. 

 Very abundant in many localities. 



3. O. picipes, Fab., GjW., Germ., Schonh. 



— vastator, et asper, Marsh., Kirb. MSS. 



— squamiger, Marsh., Steph. Illustr., Kirb. MSS. 



— notatus, et singularis, Steph. 



— septentrionis, Steph. Manual. 



— Marquardiii, Schonh. 



— Chevrolati, Schonh. var. minor. 



The Fabrician name of Ot. {Cure.) picipes is now very gene- 

 rally adopted for this insect by the principal entomologists of 

 Europe. 



I have four British insects returned from Schonherr, two of 

 them named 'picipes^ of Fab. (length 3 lines), and two ^ Mar- 

 guardtii ' of Falderm. (length 4 lines), but I cannot discover any 

 difference between them except that of size. I possess forty 

 British specimens, also returned by Germar, who has put on re- 

 cord the following opinion : — " Ot. picipes of Schonh. differs 

 somewhat in its form and clothing, and amongst the varieties 

 (to which there is every kind of transition) are to be found Cure, 

 squamiger and asper of Marsh., Marquardiii of Falderman*.'' 



I have examined the insects in the collection of Mr. Kirby and 

 Mr. Stephens, under the names of vastator, asper, and squamiger 

 of Marsham, but I am unable to detect a specific difi'erence. 



I have now before me a multitude of specimens, collected in 

 the course of several years in various localities in the north and 

 south of England, and have many from Mr. R. N. Greville, who 

 found them in Scotland. I have been induced very closely to 

 examine this numerous series, in consequence of their having 

 been divided into several species, but I must confess my inability 

 to detect a single character on which to found a specific differ- 

 ence ; and according to my experience, there is less variation of 

 form and sculpture in these than in any other long series of in- 

 sects that I have had an opportunity of examining ; they vary in 

 length from 2^ to 4 lines, and in breadth from 1^ to If line, 

 and the numerous sizes which intervene between merge insen- 

 sibly into each other. With reference to the distinguishing cha- 

 racters of Ot. Marquardtii, as given by Faldermanf, it may be 

 observed, that the largest specimens have the rostrum, antennae 

 and elytra longer and more robust when compared with the 

 smallest. 



* Germ. Stettin Ent. Zeit. 1842, p. 104. 

 f Schonh. Syn. Ins. vii. p. 358. 



