251. 



Art. XXV. — Additional Notes on the Genus Apion. By 

 John Walton. 



My Dear Sir, — Will you correct, in your next Number, a 

 few typographical errors in my Notes upon the Genera Sitona, 

 &c. published in Vol. IV. page I. At page 16, line 31, for 

 sometimes read someu'hat ; at page 18, line 38, for important 

 read unimportant ; in the annexed list of insects place stars 

 before Numbers 1 to 6, in the Genus Phijllohius ; and put a 

 number 6 before Apion Rumicis ; and for 6 A. affine read 

 7 A. affine ; also put a number 24 before A. bifoveolatum. 



I have a few additional notes upon the said genera, which 

 I shall feel obliged if you will publish at the same time. — 

 Sitona pitncticollis. — On the 13th of August last, in a field of 

 Trifolium pratense, near Scarbro', by sweeping, I captured 

 forty-six specimens of every variety, all of which I have de- 

 posited at the EYitomological Society's cabinet, for examination. 

 I detected a pair or two in copula, of what I considered in my 

 former communication as varieties, and known by the name 

 of Sitona canina. Having arranged to leave the following 

 morning, I regretted I had not an opportunity of identifying 

 more of the sexes, as the specimens were very fine and plenti- 

 ful. After mounting the above, and examining the same from 

 time to time, the habit of the varieties appeared to me distinct, 

 and could be easily separated from the true puncticollis. The 

 capture from the same plant, at the same moment, may be 

 considered a presumptive evidence of their identity ; yet I 

 think with others, it is not a demonstrative one. With these 

 impressions I instituted a more rigorous comparative exami- 

 nation into the sculpture: with this view I detached the scales 

 from a great number of specimens of all the varieties ; and I 

 now think there is a sufficient difference, both in the habit 

 and sculpture, at all events to justify a separation; and I 

 regret that I did not, in my list of this genus, retain the name 

 of Sitona canina, with an indication of doubt, in deference 

 to the opinion of others. I have two distinct new species, 

 which appear to me undescribed, one of which I have named 

 ♦S*. Meliloti, having taken it from the Trifolium officinale, or 

 Melilot Trefoil, in company with Apion Meliloti. The other 

 new species, of which I have only one example, I obtained 



