British Insects: the Families of Hymenoptera
British Insects: the Families of Hymenoptera | |
Unless indicated otherwise, the following attributes are implicit throughout the descriptions, except where the characters concerned are inapplicable.
Insects not associated with galls. Solitary insects; the adult populations comprising males and fertile females only.
Head. Sub-antennal grooves absent. Antennae inserted above the lower margins of the eyes; without noticeable elongation of the third segment.
Thorax. Wings present; the wings not long-fringed; not folding longitudinally. Fore-wings not combining greatly reduced venation with conspicuous stigmal vein; not combining greatly reduced venation with a conspicuous radial cell. Hind-wings not linear and not basally stalked.
Abdomen. The ‘waist’ simple. The abdomen not extremely laterally compressed and knife-like. Visible abdominal segments not highly metallic.
To view the illustrations with captions giving names in current use, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, distributions of character states within any set of taxa, source references, and other relevant material.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: the families of Hymenoptera. Version: 28th August 2009. http://delta-intkey.com’.