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Saotis
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Key to Northern European Saotis
Steps
Steps
Taxa:
Epipleura color
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Epipleura of tergite 5 and 6 white.
Epipleura of tergite 5 and 6 black or only redish or white on distal edge.
Scutellum
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Scutellum with a pair of yellow basolateral spots.
Scutellum almost entierly yellow or with a single spot.
Scutellum partially reddish brown.
Scutellum black.
Pilosity
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Tergites very densely covered with short hairs (tergite 8 with a apical spine).
Tergites with hairs much sparser and longer.
Metasoma
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At least tergite 2 and 3 partially reddish or reddish brown dorsally, sometimes also tergite 4.
Tergites 2-4 dorsally black.
Mesosternum
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Mesosternum reddish or yellowish brown.
Mesosternum black.
Apical tergites
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Tergites 6-8 yellowish, at most with black dorsal spot at base.
Tergites 6-8 predominantly black dorsally.
Epipleural crease
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Epipleura of tergites 4 and 5 separated by a crease.
Epipleura of tergites 4 and 5 not separated by a crease.
Mesosoma
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Mesosoma (except for speculum) matte, evenly covered with distincte dense granulation.
Mesosoma predominantly or partially polished or without granulation.
Tergite 1
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Tergite 1 about 2.8 times longer than wide.
Tergite 1 1.5-2.1 times longer than wide.
Ovipositor sheaths
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Ovipositor sheaths wide, 1.1-1.3 times wider than hind femur.
Ovipositor sheaths not wider than hind femur.
Tergite 8
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Tergite 8 in profile very strongly convex and immediately beyond middle with light transverse impression.
Tergite 8 different.
S. heteropus / S. nigriscuta
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Antenna with 19-25 segments. Coxae black. Clypeus without median convexity projecting towards lower margin.
Antenna with 24-27 segments. Coxae usually reddish. Clypeus with a distinct median convexity projecting towards lower margin.
Info
This key includes all species of Saotis that occur in Northern Europe. It only works for female specimens.
S. compressiventris
is not included since it is likely a synonym of
S. nigriventris
.
Likely taxa
Saotis albionis
Saotis bilineata
Saotis brevispina
Saotis compressiuscula
Saotis dorsata
Saotis granulator
Saotis heteropus
Saotis longiventris
Saotis nigriscuta
Saotis nigriventris
Saotis subarctor
Saotis tricolor
Saotis tricolor (var. liopleuris)
Saotis varicoxa
References
Kasparyan, D. R., & Khalaim, A. I. (2007).
14. Subfamily Ctenopelmatinae. In Ler, P. A. (Ed.), Key to the insects of Russian Far East. Vol. IV. Neuropteroidea, Mecoptera, Hymenoptera. Pt 5
(s. 474–559). Vladivostok.
Kasparyan, D. R., Kopelke, J. P. (2010). A taxonomic review of Ichneumon-flies (Hymenoptera, Ichneumonidae), parasitoids of gall-forming sawflies (Hymenoptera, Tenthredinidae) on Salix. Part II. Review of the Palaearctic species of the genus Saotis Förster with description of four new species.
Entomologicheskoe Obozrenie. 89
(1), 235-266.
