British Insects: the Families of Hymenoptera
British Insects: the Families of Hymenoptera |
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Adults small.
Head. Antennal segments 14 (males), or 15 (females). Antennae not geniculate.
Thorax. Pronotum long, extending back to the tegulae; vertically grooved to receive the fore femur. Cenchri absent. Wings present. Fore-wings with a conspicuous pterostigma, or without a pterostigma; more or less with the venation well developed; not combining greatly reduced venation with conspicuous stigmal vein; not combining greatly reduced venation with a conspicuous radial cell. Closed fore-wing cells 2, or 3. Hind-wings with closed cells, or without closed cells. Hind femur without a well defined trochantellus. Hind tibiae without specialised spurs.
Abdomen. The abdomen broadly sessile at its base, without a marked constriction to with a marked basal constriction. The ‘waist’ simple. Ovipositor of females not visibly protruding; adapted for piercing.
Larvae. Larvae legless or the legs vestigial; parasitic on hosts selected by the mother (on hosts from various Orders, including other Hymenoptera, Coleoptera and Neuroptera).
British representation. Species in Britain 3; Helorus.
Classification. Suborder Apocrita; Series Parasitica; Superfamily Proctotrupoidea.
Illustrations. • Helorus anomalipes (B. Ent. 403). • Helorus anomalipes (detail: B. Ent. 403). • Helorus anomalipes (dissections: B. Ent. 403). • Helorus anomalipes (B. Ent. 403, legend+text). • Helorus anomalipes (text, cont.: B. Ent. 403).
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’.
