''Physocephala nigra'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

fly Flies are insects of the Order (biology), order Diptera, the name being derived from the Ancient Greek, Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwing ...

from the genus ''

Physocephala ''Physocephala'' is a genus of flies from the family Conopidae. Species *'' P. antiqua'' ( Wiedemann, 1830) *'' P. biguttata'' von Röder, 1883 *'' P. burgessi'' (Williston, 1882) *'' P. chrysorrhoea'' ( Meigen, 1824) *'' P. curticornis'' Kr� ...

'' in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Conopidae. Their

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

e are

endoparasites Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has ...

of bumble bees of the genus ''

Bombus A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus ''Bombus'', part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini, though a few extinct related gener ...

''.

References

Parasitic flies Parasites of bees Conopidae Insects described in 1776 Muscomorph flies of Europe Endoparasites Taxa named by Charles De Geer {{Conopoidea-stub