[724] Illig. Mag. i. 216.
[725] Illig. Mag. i. 491.
[726] Kyber in German Magazin der Entomologie, ii. 2.
[727] Ins. Kal. ii. 188.
[728] Spallanzani, Rapports de l'Air, &c. i. 30.
[729] Carlisle in Phil. Trans. 1805, p. 25.
[730] Schmid in Illig. Mag. i. 222.
[731] Since writing the above, I have had another opportunity of confirming the observations here made. The last week of January 1817, in the neighbourhood of Hull, was most delicious weather—calm, sunny, dry, and genial—the wind south-west, the thermometer from 47° to 52° every day, and at night rarely below 40°; in fact, a week much finer than we can often boast of in May: the 27th of the month was the most delightful day of the whole: the air swarmed with Trichocera hiemalis, Psychodæ, and numerous other Diptera, and the bushes were hung with the lines of the gossamer-spider as in autumn. Yet, with the exception of Aphodius contaminatus, I did not observe a single coleopterous insect on the wing, nor even an individual tempted to crawl on the trunks of the trees, under the dead bark of which I found many in a very lively state. Five or six individuals of Haltica Nemorum were still very lethargic; and two of Geotrupes stercorarius, which I accidentally dug up from their hybernacula in the earth at the depth of six or eight inches, though the Acari upon them were quite alert, exhibited every symptom of complete torpor.
[732] Brahm, Ins. Kal. ii. 31.
[733] Lesser, L. i. 255.