Fróðskaparrit - 01.01.1954, Side 148

154
Firvaldar í Foroyum
The author does not agree with Annandale tihal the cotlour of
the male is simply approaching the colour of the female, but points
out that the oolour of the former is passing the constant colour of
fche female, growing darker than and different from the colour of
the latter. Most likely tthe change of colour of the male is now a
defence aga-in&t dangers in nature, in this case -the birds, a-nd
on th-at account of vital dmportance to the animal.
BÓKMENTIR
1. Deurs, W. van: Sommerfugle VI: Pyralider. Danmarks F-auna,
Bd. 48. Kobenihavn 1942.
2- Deurs, W. van: Indsamli-ng af Sommerfugle. Ko-benhavn 1948.
3. Gigja, G.: Islenzkt iskordýra-tal. Reykjavík 1945.
4. Hofjmeyer, Skat: De d-anske Spindere. Aarbus 1948.
5. Hoffmeyer, Skat: De danske Ugler. Aarlhus 1949.
6. Hoffmeyer, Skai: De danske Maalere. Aarhus 1952:
7. Klócker, A.: Sommerfugle I—V. Danmarks Fauna. Ko'ben-
havn 1908—1917-
8. Landt, ].: Forsdg til en Beskrivelse ovier Færdeme. Kjoben-
'havn 1800.
9. Rasmussen, Rasmus: Foroya Flora. Tórshavn 1952.
10- Rasmussen, Rasmus: Viðbót til Fdroya plantuital. Fróðskapar-
riit 1. bók. Tórshavn 1952.
11. Schiitze, K. T.: Die Biologie der K-leinschmettenliinge. Frank-
fur-t a. M. 1931.
12. Wolff, N. L.: Lepidoptera (The Zoology of fihe Faroes XXXIX,
vol. II, part 1.). Copenhagen 1937.
13- Tuxen, S. L.: J. P. Kryger - (Entomoilog. Meddelelser Bd.
XXVI, Hft. 3). Kdbenhavn 1952.