Asteiidae

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Asteiidae
Asteiidae.jpg
Asteia amona from Walker Insecta Britannica Diptera
Asteia wing veins.svg
Asteia wing veins
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Superfamily: Opomyzoidea
Family: Asteiidae
Rondani, 1856
Subfamilies
Asteia amoena feeding on grass
Leiomyza scathophagina on fungus

Asteiidae is a small but widespread family of acalyptrate flies or Diptera. About 130 species in 10 genera have been described worldwide. They are rarely collected.

Contents

Family description

For terms see Morphology of Diptera.

Adult asteiids are minute to small (1–3 millimeters) thin-bodied and delicate (often weakly sclerotized) flies, with yellow-black or dark colours. The wings are relatively long and transparent. The head is rounded, the male almost always with distinct interfrontal stripes. The arista may be bare or pubescent but usually has a zigzag of longer and shorter alternating rays. The postvertical bristles are weakly developed, divergent or parallel or totally absent. Ocellar bristles may be present or absent. There is one orbital bristle on each side of the frons (Shtakel'berg] (0–2 pairs of frontal bristles). Interfrontal bristles may be present as may scattered interfrontal setulae. Vibrissae may be absent or present. On the mesonotum are one to two pairs of dorsocentral bristles. The costa is entire, without interruptions; the subcosta is reduced; posterior basal wing cell and discoidal wing cell are fused; anal cell of wing and anal vein of wing are absent. Tibiae lack a dorsal preapical bristle.

See

Biology

Adults are often found on flowers and low vegetation but have been collected at windows indoors and on tree wounds. In one genus (Leiomyza) adults are found on mushrooms and bracket fungi. Adults of the species Astiosoma rufifrons Duda are attracted to wood ash after bonfires especially at evening. Larval biologies are unknown, but adults have been reared from fungi (Leiomyza), stalks of Cannabis sativa, flower buds, and dried reed stems. Sabrosky (1987) suggested that the larvae may be scavengers in the frass of other insects.

Species lists

Identification (literature)

Sabrosky, C.W., 1943. New genera and species of Asteiidae (Diptera), with a review of the family in the Americas. Annals of the Entomological Society of America: 36(3):501-514. Available online at the Core Historical Literature of Agriculture, Albert R. Mann Library, Cornell University.

Sabrosky, C.W., 1956. Additions to the knowledge of Old World Asteiidae.Revue francaise d'entomologie (Nouvelle Serie) 23:216-243.

Authorship

The family Asteiidae was erected by Hermann Loew

Phylogeny

Opomyzoidea

Images

See Images at Diptera.info

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References

  1. Nello schema di McAlpine, i Clusiidae sono in relazione con il genere Acartophthalmus , che secondo l'analisi cladistica di Buck (2006) va collocato nel clade dei Carnoidea. Vedi Acartophthalmidae.