Leptotes pirithous
Seq # 460070010
Celastrina argiolus

Cacyreus marshalli Butler, 1898 Species

Last modified: Nov. 3, 2025, 4:04 p.m.

Originates from the south of Africa; introduced into Europe (1990) through the import of Pelargonium-cultivars. First observed in Belgium in 1991 in Brussels (BR). It still is a rare species in Belgium.

Details

Classification
Family: Lycaenidae > Subfamily: Polyommatinae > Tribus: Polyommatini > Genus: Cacyreus > Species: Cacyreus marshalli
Vernacular names
Geraniumblauwtje (NL), Geranium Bronze (EN), Brun des pélargoniums (FR), Pelargonien-Bläuling (DE)
First mention in Belgium
Troukens W. 1991. Cacyreus marshalli Butler, 1898 aangetroffen in België (Lepidoptera: Lycaenidae). — Phegea 19: 129–131. On page 129. view page
Status

Native

Distribution

Flight periods

The adults can be seen from late March till late October. More generations a year occurs.

Observed on

Host plant (genera):
Geranium

The larva lives on Pelargonium and feeds mainly on the flowers and buds, but all parts above-ground are eaten.

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Contact
Statistics
Flemish Entomological Society

jurate.deprins@gmail.com
    Species presence
  • 1815 West-Vlaanderen
  • 1801 Oost-Vlaanderen
  • 1973 Antwerpen
  • 1931 Limburg
  • 568 Vlaams Brabant
  • 1898 Brabant
  • 328 Brabant Wallon
  • 1695 Hainaut
  • 2225 Namur
  • 2145 Liège
  • 2226 Luxembourg