Sicus ferrugineus

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Sicus ferrugineus
Sicus ferrugineus in copula
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Conopidae
Subfamily: Myopinae
Tribe: Sicini
Genus: Sicus
Species: S. ferrugineus
Binomial name
Sicus ferrugineus
(Linnaeus, 1761)

Sicus ferrugineus is a species of fly from the genus Sicus in the family Conopidae. It is common throughout much of Europe.

Sicus ferrugineus, female, lateral view
Sicus ferrugineus, female, dorsal view

The body is mainly reddish-brown or yellow-brown. The head is yellow, quite large and inflated-looking, with a kind of bubble at the front, narrow cheeks and short antennae. The large eyes are reddish. When in resting position the abdomen is usually folded forward.

Sicus ferrugineus in copula

The adults grow up to 8–13 millimetres (0.31–0.51 in) long and can be encountered from May through September, feeding on nectar or pollen of various Asteraceae species (Hieracium pilosella, Thistle Cirsium species, etc.), Apiaceae species, Parsley Petroselinum sp.) and Rosaceae species, (Blackberries Rubus sp.).

Their larvae are endoparasites of bumble bees of the genus Bombus (B. lapidarius, B. terrestris, B. hortorum, B. pascuorum, etc.). They pupate and overwinter in their victims.



  1. ^ Smith, K.G.V. (1969). Diptera: Conopidae. Handbooks for the Identification of British Insects. 10 pt 3a. Royal Entomological Society of London. pp. 19 pp. 

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