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Genus Cephalops

Fly With a Round Head - Cephalops - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Aschiza)
Family Pipunculidae (Big-headed flies)
Genus Cephalops
Numbers
178 species in 4 subgenera in the world
Identification
Many species are brightly coloured for pipunculids with spots of yellow on the abdomen. The following combination of characters allow lab identification of Cephalops specimens: hind margin of eye straight, ocellar bristles reduced (these characters place them within Pipunculinae); propleuron with a fan of setae (includes Collinias, Microcephalops, Pipunculus, Cephalosphaera and Cephalops), frons not swollen, face not narrowed, discal medial cell expanded medially (excludes Collinias and Microcephalops), setae on thorax restricted to two dorsocentral rows and scattered setae along margins (excludes Pipunculus) and Vein M2 absent (excludes Cephalosphaera).
[description by Jeff Skevington]
Range
all biogeographical regions of the world
Habitat
adults are usually seen hovering among vegetation in forest clearings and edges
Food
adults feed on honeydew secretions
larvae of most species that have been reared are parasitoids of Delphacid Planthoppers
Life Cycle
A single egg is injected into a nymph or adult planthopper, either while the bug is stationary or after the fly has picked up the bug and is in flight; the larva feeds internally and when mature, leaves the host through a break in one of the dorsal intersegmental membranes of the abdomen; pupation occurs in soil, leaf litter, at the base of plants, or rarely, attached to leaves.
Remarks
page creation based on Jeff Skevington's identification of this image
Internet References
live adult image by Steve Marshall, plus numbers, links to subgenera, description, hosts, references (Jeff Skevington, Tree of Life Project)
links to adult images of 3 species from Europe (Alan Hadley, UK)
pinned adult image of undetermined Cephalops species by Stephanie Boucher, plus brief overview of pipunculids (Canadian Biodiversity, McGill U., Quebec)
list of world species in subgenus Cephalops (Cephalops) (Jeff Skevington, Tree of Life Project)
tribe and subfamily classification (Jeff Skevington, Tree of Life Project)