Perithous

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hymenoptera
Superfamily: Ichneumonoidea
Family: Ichneumonidae
Subfamily: Pimplinae
Tribe: Delomeristini
Genus: Perithous

Pronunciation

How to pronounce Perithous: //ˈpɛr.ɪ.ˌθuːs//

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Images

Perithous (Hybomischus) virgulatus by the Smithsonian. Used under a CC0 license.

Perithous scurra pleuralis (393617329) by L.J. Lamera. Used under a CC BY 4.0 license.

Perithous scurra neomexicanus (19890991) by Steve Wells. Used under a CC0 license.

Summary

Genus Perithous encompasses three species in two subgenera within the family Ichneumonidae. Identification relies on specific morphological traits including ovipositor length and coloration. The genus is distributed across North America and exhibits varying characteristics based on geographic location.

Physical Characteristics

Ovipositor length varies by species; shorter in Perithous (Perithous) divinator (1.0x fore wing length) and longer in Perithous (Hybomischos) septemcinctorius (nearly twice fore wing length). Mesoscutum color ranges from ferruginous to fuscoferruginous with varying black margins. Hind tibia coloration is also variable (ferruginous with brown tint in divinator; brownish in scurra neomexicanus; whitish to straw-colored in scurra pleuralis; orange in septemcinctorius).

Identification Tips

Look for variations in ovipositor length and mesoscutum coloration to differentiate among species.

Habitat

Occurs in various habitats ranging from the north and east of Wisconsin to areas west and east of the Rocky Mountains.

Distribution

Primarily found in North America, with specific species distributed as follows: divinator north and east of Wisconsin, scurra neomexicanus west of the Rocky Mountains, scurra pleuralis east of the Rocky Mountains, septemcinctorius adventive in Michigan.