Author: Illiger, 1805

Type species: Andrena spiralis Olivier, 1789 = Eucera curvicornis Scopoli, 1770, monobasic.
Clade: Anthophila
Family: Halictidae
Subfamily: Rophitinae
Tribe: Rophitini
Distinctive traits
  • 3 submarginal cells    
  • short clypeus and subantennal space so that the antennae are inserted below the middle of the eyes
  • curled antennae in males
Pictures of distinctive traits.
Morphologically close genera and how to distinguish them
  • Systropha - Dufourea, Rophites and Rophitoides
Systropha have 3 submarginal cells.
Dufourea, Rophites and Rophitoides have 2 submarginal cells.
  • Systropha - Halictus, Lasioglossum
Systropha have a short clypeus and subantennal space so that the antennae are inserted very low on the face. The basal vein is slightly curved.
Halictus and Lasioglossum have longer clypeus and subantennal space. The basal vein is dinstinctly curved.
General comments on Systropha species identification
Sternites and genitalia should be visible for identification.
The two european species can be distinguished by the vertex length of the females (short in S. curvicornis), and the shape of teeth of the male's sternite 2 and 3 (pointed in S. curvicornis).
Sorry, but the species identification tool is not yet available for Systropha. 
Please check the reference(s) below for traditional keys.
List of the 2 Systropha species found in Europe (IUCN 2014 + Rasmont et al 2017):
Systropha (Systropha) curvicornis (Scopoli, 1770)
Systropha (Systropha) planidens Giraud, 1861
References with identification keys for some of the species:
  • Amiet F., Müller A. & Neumeyer R.,1999. Apidae 2: Colletes, Dufourea, Hylaeus, Nomia, Nomioides, Rhophitoides, Rophites, Sphecodes, Systropha (Fauna Helvetica 4). Centre suisse de cartographie de la faune (CSCF), Neuchâtel, 239 pp.
  • Pesenko, Y.A., Banaszak, J., Radchenko, V.G. & Cierzniak, T. 2000. Bees of the family Halictidae (excluding Sphecodes) of Poland. Bydgoszcz. 348pp.
  • Patiny, S. & D. Michez, 2006. Phylogenetic analysis of the Systropha Illiger 1806 (Hymenoptera: Apoidea: Halictidae) and description of a new subgenus. Annales de la Société entomologique de France (n.s.), 42 (1): 27-44.
Online resources:
Atlas hymenoptera (World & Europe)
WestPalBees (West Palearctic)
Page contributors:
  • Adrien Perrard (Dec. 2019)

You noticed a mistake? You have a suggestion to improve this page?
Don't keep it to yourself, contact us and become a contributor to IDmyBee!
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.