Phalangium opilio Linnaeus, 1758
- Dataset
- English Wikipedia - Species Pages
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Opiliones
- family
- Phalangiidae
- genus
- Phalangium
- species
- Phalangium opilio
Abstract
Phalangium opilio is a species of harvestman belonging to the family Phalangiidae.
Biology
Phalangium opilio is normally an univoltine species and overwinters as eggs. Eggs are laid in moist areas and hatch in three- five months. The immatures undergo several molts and reach maturity in two-three months. These harvestmans usually feed on soft-bodied animals such as aphids, caterpillars, leafhoppers, beetle larvae, mites, but sometime it may scavenge on hard-bodied animals such as various arthropods. Bugguide They ares also known to feed on Helicoverpa zea eggs, and thus can act as biological pest control for soybean crops. The species is nocturnal, as is typical of opilionids.
Description
Females have a body length of , males are slightly smaller at . Males however have longer legs; the second leg is about in males and in females. Males and females are similarly coloured and marked, although males' markings tend to be less clear. The body has a three-lobed darker "saddle", usually with spots or dashes in the midline. Both sexes show many tubercules with small spikes on the anterior surface of their body. Mitopus morio has a very similar appearance, but P. opilio can be distinguished by the two pale "denticles" (small teeth-like structures) below the anterior margin of the carapace. Males have long forward-pointing "horns" on the second segment of their chelicerae.
Distribution
It is "the most widespread species of harvestman in the world", occurring natively in Europe, and much of Asia. The species has been introduced to North America, North Africa and New Zealand.
Gallery
File: Phalangiidae - Phalangium opilio (male).JPG|Male showing the "horns" on the chelicerae File: Phalangiidae - Phalangium opilio (male)-001.JPG|Male side view File:Phalangium opilio MHNT portrait female.jpg|Female File:Phalangium opilio MHNT Profil.jpg|Female side view
Habitat
This species can be found in a wide range of habitats, including meadows, bogs, forests, and various types of anthropogenic habitats, such as gardens, fields, hedgerows, lawns, quarries, green places in built-up areas, walls and bridges.