Lasius bicornis

• Main Author: Collingwood, C. A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 1979
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Hymenoptera; Formicidae; Lasius; Lasius bicornis; Fennoscandia
• Online Access: https://doi.org/10.5281/zenodo.6283864; http://treatment.plazi.org/id/072A80E1DD76A08CC99FD8D93B889804

40. Lasius bicornis (Forster, 1850) Figs. 147, 148. Formica bicornis Forster, 1850:41. Worker. Clear citron yellow. Funiculus segments not longer than broad; scape distinctly flattened. Outline of petiole characteristic: high, tapering dorsally with a deep emargination. Body hairs long, longest hairs nearly as long as maximum hind tibial width, sparse on dorsum of gaster where restricted to posterior borders of tergites; genal hairs sparse, scapes and tibiae bare. Length: 4.0-4.5 mm. Queen. Yellowish brown to brown with head wider than alitrunk. Characters as worker; size relatively small. Length: 4.8-5.3 mm. Male. Dark brown; petiole high, tapered and deeply indented; gaster hairs very sparse. Length: 4.0 mm. Distribution. Rare; Sweden: Sm. (Forsslund, 1957a). - Range: Central and South Europe from Pyrenees and Caucasus but also recorded from Himalayas (Kashmir), South Italy to Netherlands; uncommon. Biology. This species nests in rotten logs. Alatae have been taken in September (Poldi, 1962). Published as part of Collingwood, C. A., 1979, The Formicidae (Hymenoptera) of Fennoscandia and Denmark., pp. 1-174 in Fauna Entomologica Scandinavica 8 on page 105