Podabrus pruinosus

LeConte, 1851

downy leather-winged beetle

Species Guides

Podabrus pruinosus, commonly known as the downy leather-winged , is a soldier beetle in the Cantharidae. measure 9–15 mm in length and are distinguished by their orange bodies with black-brown, finely hairy wing covers. The is active during spring and summer, when adults have been observed feeding on aphids. Larvae are larger than adults, reaching 15–20 mm, and live in soil.

Podabrus pruinosus by (c) Don Loarie, some rights reserved (CC BY), uploaded by Don Loarie. Used under a CC-BY license.

Podabrus pruinosus (27892219787) by Donald Hobern from Copenhagen, Denmark. Used under a CC BY 2.0 license.

Soldier Beetle - Podabrus pruinosus, Packer Lake, California by Judy Gallagher. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Podabrus pruinosus: /poˈda.brus pruˈi.no.sus/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other soldier beetles by the combination of orange body with black-brown, finely hairy () wing covers. The downy texture of the is particularly notable. When disturbed, drop to the ground and feign death—a useful for field identification. The larger size and pink coloration with two dark thoracic stripes distinguish larvae from many other larvae.

Images

Appearance

are 9–15 mm in length with orange bodies. The wing covers () are black-brown and covered in fine hair, giving the its "downy leather-winged ." The is typically bent downward. are 11-segmented and threadlike, held forward of the body. The pronotum is wider than the head and wider than long. The wing covers appear velvety, soft, and flexible—characteristic of leatherwings. Larvae are 15–20 mm long, pink in color, with two dark lines on the .

Habitat

are commonly found on flowers and leaves infested with aphids or other honeydew-excreting insects. Larvae inhabit soil.

Distribution

North America. The has been recorded across the continent, with specific observations from Oklahoma (Woodward County, Major County, Beaver County, Cimarron County) and other regions.

Seasonality

Active in spring and summer. have been observed from at least May through August, with peak activity likely corresponding to availability.

Diet

feed on aphids. Larval diet is not explicitly documented in available sources.

Life Cycle

Larvae are 15–20 mm long, pink, with two dark lines on the , and live in soil. Details of and -laying are not documented in available sources.

Behavior

When disturbed, withdraw their legs and drop to the ground, appearing dead (). Adults are and frequently observed on flowers or foliage. Larvae are soil-dwelling.

Ecological Role

are predatory on aphids, potentially contributing to natural pest suppression. The serves as prey for various vertebrate , though its coloration signals chemical defense.

Human Relevance

May provide incidental of aphids in gardens and agricultural settings. No significant negative impacts documented. and larvae can excrete noxious defensive chemicals from specialized abdominal glands, making them distasteful to .

Similar Taxa

Other Podabrus speciesShare orange and black coloration pattern; P. pruinosus distinguished by finely hairy () wing covers
Chauliognathus limbicollisAnother cantharid soldier beetle found on flowers; differs in color pattern and lacks the downy wing texture
Cantharis speciesSimilar body form and use; P. pruinosus distinguished by specific orange-and-black pattern with

More Details

Subspecies

Five are recognized: P. p. atrocervicus Fender, 1962; P. p. comes; P. p. diversipes Fall, 1927; P. p. gradatus; and P. p. pruinosus (nominate subspecies).

Chemical defense

Like other cantharids, and larvae possess specialized abdominal glands that produce noxious defensive compounds, making them unpalatable to . This is advertised by their aposematic (warning) coloration.

Taxonomic note

GBIF flags this as 'DOUBTFUL' in status, suggesting possible taxonomic uncertainty requiring verification.