Jaime Fuest, University of Georgia · 0 Cryptus albitarsis |
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Jaime Fuest, University of Georgia · 0 Cryptus albitarsis, male |
Jaime Fuest, University of Georgia · 0 Cryptus albitarsis, female, lateral |
Identification |
The original species description is presented here in text form and taken driectly from: Cresson, E.T. 1864. Descriptions of North American Hymenoptera in the collection of the Entomological Society of Philadelphia. Proceedings of the Entomological Society of Philadelphia 3:194.
Isch. albitarsis, n. sp.
Very slender, black; most of the face, scutellum and tarsi, whitish;
abdomen rufous; wings hyaline.
Male.-Very slender, black, shinging; face: the inner orbits, broad
beneath the antennae, a bilobed spot just beneath the antennae, most
of the clypeus, a spot on each mandible, and the palpi, whitish;
antennae slender, about as long as the body, black, the basal joint
beneath with a white spot. Thorax finely punctured; the tegulae, a
sutural line before and a short line beneath the fore-wing, the collar
above and a spot on each side of the pleura just above the anterior
coxa, whitish; scutellum slightly convex, polished, black, with a
rather large whitish spot, and a short transverse whitish line behind
it; metathorax black, finely and densely punctured, truncate behind,
the elevated lines not well defined, the central area rather large,
subquadrate, obsoletely defined. Wings hyaline, faintly tinged with
fuliginous, slightly iridescent; nervures fuscous, pale at base,
stigma black; areolet 5-angular or subtriangular. Legs black, the
four anterior coxae and trochanters beneath, their femora, tibiae and
tarsi before and the posterior tarsi, except base and extreme apex,
whitish. Abdomen elongate, slender, cylindric, polished, rufous, the
apex slightly blackish; basal segment linear, with a slight tubercle
on each side behind the middle. Length 4.5-5 lines; expanse of wings
6-7 lines.
Hab.-Illinois. Dr. Samuel Lewis.
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Names |
Trachysphyrus albitarsis
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Geographic distribution |
Canada (Ontario, Quebec, Nova Scotia, New Brunswick), USA (Connecticut, Indiana, Iowa, Maryland, Massachusetts, Michigan, minnesota, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Vermont, Virginia, Wisconsin)
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Natural history |
Cryptus albitarsis albitarsis is also a parasitoid of oriental fruit moth (Grapholita molesta), hop-merchant (Polygonia comma), and banded woollybear (Isia isabella) (Fattig, 1950).
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References |
Cresson, E.T. 1864. Descriptions of North American Hymenoptera in the collection of the Entomological Society of Philadelphia. Proceedings of the Entomological Society of Philadelphia 3:194.
Fattig, P.W. 1950. The Ichneumonidae or Parasitic Hymenoptera of Georgia. Emory University Museum Bulletin no. 9. 78p.
Pratt, H.D. 1945. Taxonomic studies of the Nearctic Cryptini (Ichneumonidae, Hymenoptera). American Midland Naturalist 34: 549-661.
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Acknowledgements |
The male photographed in lateral view was captured in Yellow Dog Plains (Marquette Co.), Michigan, 28.VI.1961 by H. and M. Townes. I thank Dr. Lars Vilhelmsen and the Zoological Museum, University of Copenhagen for receipt of this specimen loan.
The female specimen photographed in frontal view was captured in a malaise trap in Chapel Hill (Orange Co.), NC on 20-VIII-1975. I thank Dr. B. Blinn and the North Carolina State University Insect Collection for loan of this specimen.
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Updated: 2024-03-28 19:29:31 gmt
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