Leptacinus intermedius

Donisthorpe, 1936

Intermediate Rove Beetle

Leptacinus intermedius is a European rove beetle in the Staphylinidae, described by Horace Donisthorpe in 1936. The has been introduced to North America, where it is now established in Canada and the United States. Like other staphylinids, and larvae are predatory on other insects.

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Pronunciation

How to pronounce Leptacinus intermedius: /ˌlɛp.təˈsiː.nəs ˌɪn.tərˈmɛ.di.əs/

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Identification

Can be distinguished from similar rove beetles by male genitalia ( size). The short exposing multiple abdominal segments is characteristic of the Staphylinidae but not diagnostic to level.

Images

Appearance

Typical rove beetle with very short that leave three to six abdominal segments exposed. The body is elongated with the characteristic flexible of the . Males possess a distinctive that can be used for identification.

Distribution

Native to Europe (including Belarus, Ukraine, Turkey, Algeria, Libya, and the Canary Islands). Introduced and established in Canada (Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Northwest Territories, Ontario, Prince Edward Island, Quebec, Saskatchewan) and the United States (Arizona, California, Colorado, Connecticut, Illinois, Indiana, Massachusetts, Nebraska, New Hampshire, New Mexico, Nevada, New York, Ohio, Oregon, Pennsylvania, Rhode Island, Washington).

Diet

Predatory on other insects.

Ecological Role

of other insects.

Human Relevance

Non-native in North America, established through introduction.

Similar Taxa

  • Other Leptacinus speciesRequire examination of male for definitive identification.
  • Other StaphylinidaeShare short and exposed abdominal segments; -level identification requires detailed morphological examination.

More Details

Taxonomic Note

The was described by Horace Donisthorpe in 1936, though some sources cite 1935.

Introduction History

The has been introduced to North America and is now widely distributed across Canada and the northern and western United States.

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Sources and further reading