Cerceris atramontensis

Banks, 1913

Cerceris atramontensis is a solitary predatory in the Crabronidae, first described by Banks in 1913. Like other members of the Cerceris, it is a ground-nesting wasp that provisions its underground burrows with paralyzed insect prey for its offspring. The is found in North America, with records from Canada including Alberta.

Pronunciation

How to pronounce Cerceris atramontensis: //sɛrˈsɛrɪs əˌtræmoʊnˈtɛn.sɪs//

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Identification

Specific diagnostic features for distinguishing C. atramontensis from other Cerceris are not documented in available sources. Members of the Cerceris generally have cylindrical bodies with black and yellow or white markings, and females possess stingers used to paralyze prey. Identification to species level typically requires examination of morphological characters such as facial markings, body sculpturing, and male genitalia.

Habitat

Based on -level patterns, C. atramontensis likely nests in well-drained, sandy or sandy-clay soils in open, sunny areas. Related Cerceris frequently colonize disturbed ground such as ball fields, dirt roads, campsites, and playgrounds.

Distribution

North America; specifically recorded from Canada including the province of Alberta.

Life Cycle

As a solitary Crabronid , C. atramontensis likely follows the typical developmental pattern of the : females dig underground burrows, capture and paralyze prey with their sting, drag the prey into the burrow, lay an on it, and seal the . The larva develops by consuming the paralyzed prey, pupates, and emerges as an the following season.

Ecological Role

As a of other insects, C. atramontensis contributes to of its prey . The Cerceris is known for prey specialization, with different species targeting distinct insect groups.

Similar Taxa

Cerceris fumipennisClosely related and morphologically similar, but distinguished by its nearly exclusive specialization on Buprestidae (jewel beetles) and its use as a biosurveillance tool for emerald ash borer detection. C. fumipennis has been extensively studied and has distinctive facial markings (three yellow markings in females, two in males).
Cerceris bicornisAnother North American Cerceris that makes nearly identical burrows but specializes on weevils (Curculionidae) rather than other prey groups. Prey type found near nest entrances is the most reliable distinguishing character.

More Details

Taxonomic note

The placement of Cerceris atramontensis has been subject to revision. Some sources list it in , but current classifications (GBIF, NCBI, Catalogue of Life) place it in Crabronidae, Philanthinae.