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GENUS   Thrincohalictus

Author: Blüthgen, 1955

Type species: Halictus prognathus Pérez, 1912, by original designation.
Clade: Anthophila
Family: Halictidae
Subfamily: Halictinae
Tribe: Halictini
Estimated min and max body length from the genus.
Countries with known records of the genus (based on Nieto et al. 2014)
Estimated difficulty to accurately identify a specimen as belonging to this genus.
Distinctive traits
  • 3 submarginal cells
  • Curved basal vein
  • Females with an apical bald furrow on T5
  • Female clypeus without lateral processes pointing downward
  • Male head elongated (malar space = 2x flagellum width)
Pictures of distinctive traits.
(Sorry, there is no picture available at this time. If you have some and would like to become a contributor to IDmyBee, please contact us.)
Morphologically close genera and how to distinguish them:
Thrincohalictus is very rare, restricted to eastern mediterranean islands. It is morphologically close to the much more common genus Halictus.
  • Thrincohalictus - Halictus
Thrincohalictus females have a truncated clypeus with only a short, rounded projection. Males have a strongly elongated head (malar space > 2x flagellum width).
Halictus females have a truncated clypeus extended downward at each side of labrum as a small, rather sharp, impunctate projection. Males head is less elongated (malar space < 1x flagellum width).
  • Thrincohalictus - Lasioglossum
Thrincohalictus species have submarginal vein 3 and recurrent vein 2 of similar strength than submarginal vein 1. Hairs bands on the abdomen are at the apex of the segments.
Lasioglossum species have submarginal vein 3 and recurrent vein 2 less visible than submarginal vein 1. Hairs bands on the abdomen are at the basal part of the segments
General comments on Thrincohalictus species identification
There is only one species of Thrincohalictus recorded in Europe.
Thrincohalictus species found in Europe (IUCN 2014 + Rasmont et al 2017):
Thrincohalictus (Thrincohalictus) prognathus (Pérez, 1912)
Online resources:
Atlas hymenoptera (World)
WestPalBees (West Palearctic)
Page contributors:
  • Adrien Perrard (Dec. 2019)

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References used to write this page:
  • Michener, C.D. 2007. The Bees of the World, 2nd Edition. The John Hopkins University Press, Baltimore.
  • Michez D., Rasmont P., Terzo, M., Vereecken, N. 2019. Abeilles d'Europes. Hymenoptères d'Europes, Volume 1. N.A.P. Editions.
  • Nieto, A., Roberts, S. P., Kemp, J., Rasmont, P., Kuhlmann, M., García Criado, M., ... & Michez, D. 2014. European red list of bees. Luxembourg: Publication Office of the European Union, 98.
  •  Rasmont, P., Devalez, Jelle, Pauly, A., Michez, D. & Radchenko, V.G. 2017. Addition to the checklist of IUCN European wild bees (Hymenoptera: Apoidea). Annales de la Société entomologique de France 53: 17-32.

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