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Subfamily Adelognathinae

Alaskan adelognathidine - female Alaskan adelognathidine - female Alaskan adelognathidine - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitoid Apocrita))
Superfamily Ichneumonoidea (Braconid and Ichneumonid Wasps)
Family Ichneumonidae (Ichneumonid Wasps)
Subfamily Adelognathinae
Explanation of Names
Adelognathinae Thomson 1888
a single genus, with 4 described species in our area and ~50 total(1)(2)(3)
generally <4 mm(3)
14-15 antennal segments (12-13 flagellomeres)*
characteristic fore wing venation: short marginal cell, marginal vein meeting wing edge far short of distal end of wing; small cell (areola) posterior to marginal cell with outer (distal) bordering vein faint or absent
small size (usually <4 mm)

*In the specimen I examined, antennomeres 4-7 had sensory placodes arranged in 2 ranks, which made each of those segments look like 2 segments
Holarctic & Oriental(4)
overwinter as prepupae
larvae feed on larvae of sawflies in superfamilies Tenthredinoidea and Pamphilioidea. Adult females have been observed host-feeding during oviposition.
Life Cycle
koinobiont ectoparasitoids. In general, gregarious, although there are instances of solitary parasitism.