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Coelopidae: Wikis


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From Wikipedia, the free encyclopedia

Seaweed or kelp flies
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Section: Schizophora
Subsection: Acalyptratae
Superfamily: Sciomyzoidea
Family: Coelopidae
Hendel, 1910
  • Coelopinae Meigen, 1830
  • Lopinae McAlpine, 1991

Coelopidae or kelp flies are a family of Acalyptratae Diptera, they are sometimes also called seaweed flies, though this term is used for a number of seashore diptera. There are less than 40 species worldwide.The family is found in temperate areas, with species occurring in the southern Afrotropical, Holarctic regions and Australasian (which has the most species) regions.


Family characteristics

See [1] Image of pupa [2]


Coelopids are found in the wrack zone of temperate seashores where the larvae feed on rotting seaweed. They are sometimes very abundant in this habitat. They go through several generations a year. The females lay their eggs in small batches into fresh alga banks.There 3 larval instars. Larvae feed in a bacteria-laden mass Pupation is seldom in the alga substrate that soon collapses, but more frequently in the highest sand layers. Larvae are also found in winter wrack heaps as bacteria raise temperatures to 20-30°C even if the heap is superficially frozen.Larvae and pupae have numerous enemies. Beside birds there is the staphylinid Aleochara and suites of parasites confined to algal banks.

Identification (literature)

Note: Considerable intraspecific variation in some species, especially in overall size, wing length, and setal characters has led to considerable splitting at the generic level.

  • Malloch, J.R. 1933. The genus Coelopa Meigen (Diptera, Coelopidae). Ann. Mag. Nat. Hist. (10) 11: 339-50.
  • McAlpine, David K. (1991). "Review of the Australian Kelp Flies (Diptera: Coelopidae)" (Print). Systematic Entomology 16: 29-84.


Classification after McAlpine [1]

  • Subfamily Lopinae McAlpine, 1991
  • Genus Lopa McAlpine, 1991
  • Subfamily Coelopinae Meigen, 1830
  • Tibe Glumini McAlpine, 1991
  • Genus Malacomyia Haliday in Westwood, 1840 (sometimes placed in Dryomyzidae)
  • Genus Chaetocoelopa Malloch, 1933
  • Genus Dasycoelopa Malloch, 1933
  • Genus Coelopina Malloch, 1933
  • Genus Gluma McAlpine, 1991
  • Tibe Coelopellini Malloch, 1933
  • Genus Rhis McAlpine, 1991
  • Genus This (fly)This McAlpine, 1991
  • Genus Coelopella Malloch, 1933
  • Tibe Ammini McAlpine, 1991
  • Genus Icaridion Lamb, 1909
  • Genus Amma McAlpine, 1991
  • Genus Beaopterus Lamb, 1909

Species lists


Coelopa frigida (Fabricius) has been reared in the laboratory and used for genetic studies.

Reference and sources

  1. ^ McAlpine, David K. (1991). "Review of the Australian Kelp Flies (Diptera: Coelopidae)" (Print). Systematic Entomology 16: 29-84.  

McAlpine, D.K. 1998. Family Papp, L. nd Darvas, B. (ed.): Contributions to a Manual of Palaearctic Diptera. 3: 335-340. Science Herald, Budapest.




Up to date as of January 23, 2010

From Wikispecies



Main Page
Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Cladus: Pterygota
Cladus: Metapterygota
Cladus: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Panorpida
Cladus: Antliophora
Ordo: Diptera
Subordo: Brachycera
Infraordo: Muscomorpha
Sectio: Schizophora
Subsectio: Acalyptrata
Superfamilia: Sciomyzoidea
Familia: Coelopidae
Genera: Amma - Gluma - Lopa - Rhis - This




  • McAlpine, D.K. 1991: Review of the Australian kelp flies (Diptera: Coelopidae). Systematic entomology, 16: 29-84. doi: 10.1111/j.1365-3113.1991.tb00573.x
  • Meier, R.; Wiegmann, B.M. 2002: A phylogenetic analysis of Coelopidae (Diptera) based on morphological and DNA sequence data. Molecular phylogenetics and evolution, 25: 393-407. doi: 10.1016/S1055-7903(02)00276-2

Vernacular names

English: seaweed flies, kelp flies
日本語: ハマベバエ科
Wikimedia Commons For more multimedia, look at Category:Coelopidae on Wikimedia Commons.


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