Taxonomy

Passaloecus monilicornis

Distribution

Status

Conservation status

Not Assessed

Species Biology

Identification

  • Body length: 5-8mm
  • Head, thorax and abdomen black in colour
  • Mandibles pale yellow in colour
  • Easily confused with other small black solitary wasps. The use of a microscope and specialist keys will generally be needed for identification

Habitat

Found in a variety of habitats including woodland edges, scrub, riverbanks and hedgerows. 

Flight period

Flies in a single generation from early June until July. 

Nesting biology

Nests are constructed solitarily in dead wood, reportedly using old beetle burrows. Several cells will be constructed within the burrow, which will be deposited with various aphid species. The female will lay an egg in each cell, from which a larva will emerge soon after and feed on the aphids before emerging as an adult the following year.

Flowers visited

Unknown

Similar species

  • Other small black solitary wasps (see above)

Distribution

World distribution(GBIF)

Temporal change

Records submitted to Data Centre in 2024

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