Garden hair mosquito
| Garden hair mosquito | ||||||||||||
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Bibio hortulanus , female |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Bibio hortulanus | ||||||||||||
| ( Linnaeus , 1758) |
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The garden hair mosquito ( Bibio hortulanus ) is a mosquito within the family of hair gnats (Bibionidae).
features
The mosquitoes are 6 to 9 millimeters long. There is a clear sexual dichroism between the sexes . The male is completely black, the wings are transparent, only the front cell is brownish-red. The female has a brownish-red body, the head, the scutellum and the pleura are dark. The similar Bibio pomonis is distinguished by its red colored legs ( femora ).
Way of life and distribution
The animals are found in North Africa, Europe and Asia. The adults like to visit umbellifers . They fly in Central Europe from March to June. The larvae live in the soil and feed on humus. Older larvae also feed on roots and can be harmful to clover, grain and other crops.
Cytogenetics
The huge, loop-like structures (1n = 5) in the oversized cell nuclei of the Malpighian vessels of B. hortulanus are actually chromosomes. Polytene chromosomes arise through self-multiplication within a cell nucleus that is no longer dividing. Such endoreplication was then found in high-performance organs of other two-winged animals.
literature
- Joachim Haupt, Hiroko Haupt: Flies and Mosquitoes. Observation, way of life . 1st edition. Naturbuch-Verlag, Jena and Stuttgart 1995, ISBN 3-89440-278-4 .
Web links
Individual evidence
- ↑ Heitz Emil , Bauer Hans : Evidence for the chromosome nature of the nuclear loops in the tangled nuclei of Bibio hortulanus L. Cytological investigations on Diptera: I. In: Journal for cell research and microscopic anatomy. 17/1933, pp. 67-82.
- ↑ Beermann Wolfgang : giant chromosomes. Springer, Vienna 1962.