Aporia crataegi
Black-veined White ( Aporia crataegi ), male
The Black-veined White ( Aporia crataegi ) is a butterfly ( butterfly ) of the family of White (Pieridae ).
- 5.1 Notes and references
- 5.2 Literature
Features
The wing surfaces are white, while settling the black-colored veins of the males significantly. The males have a black Diskoidalfleck always on the fore wings, which is often lacking in the females. In addition to these brownish veins and a weaker scales on the wings can be seen.
Occurrence
A. crataegi is widespread and common. Its range extends from north-west Africa in the west to Transcaucasia and Japan in the east. In the south it is found in Turkey, Cyprus, Israel, Lebanon and Syria. However, it does not occur in the British Isles and northern Scandinavia.
The Black-veined White is highly variable in terms of its habitat. It occurs on sunny shrubbery rich layers. This includes in particular cultural country with many forage crops. It shows a preference for the open ground, occur in the thistles.
Way of life
The females lay on the leaves of food plants ( to include, inter alia, Prunus, Cerasus and Crataegus species, Padus avium, Pyrus communis, Malus domestica Sorbus aucuparia ) yellowish eggs in Situated off. The intervention Lige hawthorn (Crataegus monogyna) is often preferred. The caterpillars are brightly colored, and overwinter sociable in a dream. The dolls are yellow colored and patterned black dots. The mating of tree - white body often occurs immediately after hatching the female. The moths find their food to the flowers of different types thistle, alfalfa, bugloss, meadow sage, red clover and red dogwood. Occasionally, outbreaks of tree - white body, for example in Baden- Württemberg in the Upper Rhine plain of 1977 until 1988. This mass occurrence had its starting point at the motorway junction Mannheim. In connection with the above-mentioned mass propagation of a competitive behavior between Black-veined White and Gold After ( Euproctis chrysorrhoea ) was found, in which the latter type follows the Black-veined White at the renewal of suitable habitats for unknown reasons.
Flight times and caterpillars
A. crataegi flies in a generation: in northern Europe from late May to early June and in southern Europe from mid-April to July. The caterpillars can be observed in August. After overwintering larvae continue their development in the following year in June.
Threats and conservation
Red List FRG: 4 (potentially compromised )