Taxonomy

Crossocerus (Cuphopterus) dimidiatus | Blunt Tailed Digger Wasp

Distribution

Status

Conservation status

Not Assessed

Species Biology

Identification

  • Body length: 7.5 - 11.5mm
  • Head black in colour
  • Thorax predominantly black with yellow markings on the collar
  • Abdomen black with yellow markings
  • Legs black and yellow in colour
  • Could be confused with Crossocerus quadrimaculatus, Crabro peltarius and Ectemnius  species

Habitat

A variety of habitats are used, including sand quarries, woodland edges and margins, along river courses and in scrubby grassland.

Flight period

Univoltine between late May and September.

Nesting biology

Nests solitarily or in loose aggregations in a variety of settings including partially shaded sand banks, dead or decaying wood or in loose mortar. Each burrow will have several cells deposited with paralysed flies (particularly Rhagio species) which will eaten by the developing larvae. 

Flowers visited

Unknown in Ireland.

Similar species

  • Crossocerus quadrimaculatus
  • Crabro peltarius
  • Ectemnius species

Distribution

World distribution(GBIF)

Temporal change

Records submitted to Data Centre in 2024

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