]>lotes on Insects. 165 



When Mr. Logan and myself bad concluded onr examination 

 of his oats, we proceeded into the adjoining field, containing 

 mangold v/urzel, and only separated from the last by a vrooden 

 fence : it was soAvn on 30th April and 1st May ; I observed that 

 the hearts of many of the young plants had been eaten out and the 

 leaves consumed, and some Avere cut below the surface of the soil. 

 Having little time to spare, I only found one large lepidopterious 

 larva, of a different species from that amongst the oats ; and 

 more resembhng the larva of a Gnrplirpliora than that of an 

 Agrotis, The following is a description of it: — 



CiUivorm oftheMangold Wurzel,'So. 2.— Length, 16 lines; smootli, 

 dark browuish-grey, but not transparent; head and corneous 

 shield of 1st segment, black striped Vv'ith white ; faintly lined 

 down the back and sides, and covered with numerous polished 

 dots similnr to those in number ], but darker and differently 

 arranged ; 3 black dots on each segment over each spiracle, which 

 is also black. This larva has since died ; it does not answer to 

 any of those described by Dr. Fitch. 



Oats were grown in this field last year, and they then suffered 

 much from the " Red-headed Cutworm," it was ploughed from 

 grass the previous year, mostly in Autumn, but a part now under 

 beans not till the spring before last ; and the oats which giev/ on 

 it were much more injured by the Cutworms than the rest, pro- 

 bably from the larva in the grass having been undisturbed ail the 

 winter. I noticed that the little brown Turrdp Beetle (Haltica) 

 was already very numerous, and had eaten small round, holes in 

 the leaves of the young mangold wurzel. The horse beans in this 

 field were looking remarkably well, and I understand they have 

 not been injured by anything ; they were sown on 23!d and 24th 

 April. On the 24th inst., I again walked out to the farm, the 

 second sowing of Indian corn had been up a day or two, and the 

 persevering Cutworms had commenced on this also ; I found a 

 good many, and some were still small, being only about 7 lines 

 long, but they were by no means as numerous as the first day, 

 probably OAving to their having been disturbed by farming opera-^ 

 tions ; for Mr. Logan, despairing of his crop of maize, had sown 

 Turnips with a sowing machine along the rows of corn ; and had 

 also applied a dressing of guano to the surface during rain. The 

 Halticas had already found them out, although only a quarter of 

 an inch above ground, and were busily engaged ])]anning their 



