Читать книгу Essays Upon Heredity and Kindred Biological Problems - Weismann August - Страница 9
I.
THE DURATION OF LIFE.
1881
APPENDIX
Note 3. The Duration of Life among Mature Insects
II. Neuroptera
ОглавлениеPhryganids ‘live in the imago stage for at least a week and probably longer, apparently without taking food’ (letter from Dr. Hagen).
According to the latest researches Phrygane grandis10 never contains food in its alimentary canal, but only air, although it contains the latter in such quantities that the anterior end of the chylific ventricle is dilated by it.
10
Imhof, ‘Beiträge zur Anatomie der Perla maxima,’ Inaug. Diss., Aarau, 1881.
