Biology:Melanostomini

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The Melanostomini are a tribe of hoverflies. The tribe was first described as the subfamily Melanostominae by Williston in 1885.[1][2][3] The tribe has at times been considered to be synonymous with Bacchini.[2]

Description

Williston first described the group to include the genera Pyrophaena, Platycheirus (as Platychirus), and Melanostoma as follows:

Small, elongate, thinly pilose species, deep black or shining green, the abdomen usually slender, with interrupted bands of bright yellow, orange or greenish yellow color (Syrphus simplex from the West Indies has a black face and entire shining metallic abdominal cross-band); face uniformly black, or at least never with light ground-color. Antennae short, face tuberculate, marginal cell of wing open, third longitudinal vein of wing only gently curved, anterior cross-vein near the base of discal cell; legs slender, hind femora never thickened.[1]: 133 

The modern concept of the group has changed considerably from this initial description.

A 2020 molecular phylogenetic study found that Bacchini sensu lato should be divided into two groups: Melanostoma and related genera (i.e., Melanostomini), and Baccha and related genera (i.e., Bacchini).[2]

References

  1. 1.0 1.1 Cite error: Invalid <ref> tag; no text was provided for refs named Williston1885
  2. 2.0 2.1 2.2 Cite error: Invalid <ref> tag; no text was provided for refs named Mengual2020
  3. Thompson, F. Christian; Skevington, Jeffrey H. (2014-08-06). "Afrotropical flower flies (Diptera: Syrphidae). A new genus and species from Kenya, with a review of the melanostomine group of genera". Zootaxa 3847 (1): 97–114. doi:10.11646/zootaxa.3847.1.5. ISSN 1175-5326. PMID 25112327. 

Wikidata ☰ Q133792923 entry