Aglossa caprealis
Aglossa caprealis
Aglossa caprealis is a (small) butterfly from the family of European corn borer ( Pyralidae ). The species is regarded as a stored product pest.
Features
The moths have a wingspan of about 25 mm (or a forewing length of 10 to 12 mm). The front wings are usually reddish brown to purple-brown with yellowish interference. However, there are also dark brown specimens. The root region is often dyed much darker. The lighter drawing consisting of two transverse lines and blemishes can be very clearly developed or almost absent. The inner transverse line, when present, strongly serrated, the outer transverse line, however, is finely serrated with a very wide and deep recess provided outward in the middle of the front wing. The outer transverse line may be broadened patchily on the front edge and inner edge. In midfield, several bright spots may be present. The Diskalfleck is usually very large and dark cored. In some specimens a faint subterminal line is still in addition to recognize that at the bulge in the outer transverse line extending transversely close to the wing. Also this is slightly serrated. Kostal are On edge, next to the thickening of the outer and possibly inner transverse line usually still several smaller spots in the area of the center panel available.
The hind wings are white to whitish, sometimes dusted ocher. Head and thorax are reddish-brown or purple-brown, the abdomen gray-brown. The sensors are easy thready.
The oblong- elliptical or oval egg is initially yellowish brown light when storing and later pale gray-brown. It measures 0.81 x 0.56 ± 0.03 mm ± 0.02 mm. The surface has an irregular polygonal mesh pattern. The boundaries of the polygons are folded irregularly.
The caterpillar is pale to blackish, often with a green or bronze-colored tint. The head is reddish brown, the stigmata are outlined in black. The bristles are light brown and sitting on bright warts. The head and Analplatte and the thoracic legs are yellowish brown. It is up to about 20 mm long.
The doll is light reddish brown with a fine dotted abdomen. The cremaster is staffed with six hook-shaped bristles.
Geographical distribution and habitat
The species occurs almost everywhere in Europe, but is relatively rare and regionally also missing, as in Bohemia, Slovakia and western Ukraine. It is rather to be found in southern Europe and North Africa. Meanwhile, she was nearly abducted worldwide. In Central Europe the species is almost exclusively synanthropic before, ie in the vicinity of people, for example in stables and storage warehouses.
Way of life
It makes one generation per year whose moths fly in July and August; Parts of the population appear to have a two year development cycle. The moths are active at night and rest during the day on walls or other places in the buildings where they live. Eiraupen the hatch 10 days to three weeks of storage of the eggs as a function of temperature. They are found from August to May of the following year or even until May of the second year. They live in tubes spun in and under their food. This consists of vegetable waste, hay, straw, but also from grains and their products. After Slamka they should also eat in animal waste. In Morocco, it was observed how they ate the eggs of Lymantria dispar. In California, the species is also of the dry rot fungus species similar Poria incrassata. They rather preferred a humid microclimate. Pupation takes place in a white silken cocoon, which is covered by plant residues and wastes.
Harmful effect
As the animals found in central Europe almost exclusively in human dwellings and farm buildings, they are traditionally regarded as pests and " vermin ". However, no major damages have been reported so far in Europe. This is not to be expected due to the long development time of one to two years. On the contrary, the species is now in Europe rather rare. In North Africa, the caterpillars will attack the corks of wine bottles and put there a big nuisance dar.
System
The taxon was described in 1809 by Jacob Hübner as Pyralis caprealis first time scientifically. Later authors evaluated the spelling caprealis as a typo for cuprealis, with the interpretation cuprealis = " copper-colored corn borer ." Therefore, the species is also found as Aglossa cuprealis in the older literature. This arbitrary change of notation is not allowed under the International Rules for Zoological Nomenclature.