Ichneumon Wasp
( Ichneumonidae )


2015-0531-38000004-HYM02244-Ichneumonidae[1304h10s,F,A,plant]{CLarge}-G.jpg

PHOTO COMMENT

IDENTIFICATION
Identification:Ichneumonidae
(Linnaeus, 1758)
Common Name:Ichneumon Wasp
Life Stage:(A) adult

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Holometabola
Order:Hymenoptera
Suborder:Apocrita
Family:Ichneumonidae
Taxon Code:HYM02244
ITIS TSN#:153360

LOCATION DETAILS
Location
CLarge Property, CLarge Property, San Francisco
County:San Francisco County
ECI Site#:CA38000000

RECOGNITION
Slender, wasplike. Two recurrent veins. 2nd submarginal cell small or lacking. Base of cubital vein lacking, 1st submarginal and 1st discoidal cells fused. Resulting vein structure called 'horse head' shape. Antennae with 16 or more segments and usually at least half as long as body. They vary greatly in size and color; many are uniformly colored, from yellowish to black and others are brightly patterned with black and brown or black and yellow; many have middle segments of antennae yellowish or whitish. The majority resemble slender wasps but differ from the stinging wasps (Scolioidea, Vespoidea and Sphecoidea) in having longer antennae with more segments (usually at least 16). Many have long ovipositors, often longer than the body. Ichneumonids are notoriously hard to identify: aside from the sheer number of species, there are numerous cases of distant relatives that appear almost identical. Any identification based solely on comparing images should be treated as suspect unless an expert has said there are no lookalikes for the species or group in question.

BIOLOGY
Food
Parasitic on other arthropods.
Host
A great variety of hosts (mostly immature stages) is used, though most species attack only a few host types; some infest spiders and other non-insect arthropods.
Habitat
Common almost everywhere.
Active Period
Many hibernate as adults, usually under loose bark of fallen trees.
Distribution
Worldwide

HABITAT
Common almost everywhere.

CREDITS
Photographer
Cynthia Large

REFERENCES
  • Family Ichneumonidae - Ichneumon Wasps. (http://bugguide.net/node/view/150). Accessed March 12, 2016. [ IMAGES ]
  • Integrated Taxonomic Information System TSN#153360


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