Megatrigon apiformis Doczkal & Radenković & Lyneborg & Pape 2016, sp. nov.
Creators: name: Doczkal, Dieter
name: Radenković, Snežana
name: Lyneborg, Leif
name: Pape, Thomas
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Megatrigon
Megatrigon apiformis

description: Megatrigon apiformis sp. nov.
urn:lsid:zoobank.org:act: F83D697B-489E-4E4C-AE21-BB7A4FCA6C4F
Figs 1G, 2H, 3G, 4C, 5A, 7G, 10G, 11G, 12F, 16
Diagnosis
Small, slender, golden-haired species (Fig. 1G); head (Fig. 2H) almost entirely covered by dense, whiteyellow microtrichia except following bare parts: triangular area laterally from median microtrichiose stripe on face, area lateral and above the antennae, posterior margin of the head (in dorsal view); wing (Fig. 5A) completely covered with very dense, white microtrichia; mesoscutum (Fig. 4C) besides lateral microtrichiose stripes, also with long submedian stripes far exceeded the level of transverse suture, indistinct median stripe along the whole length of mesoscutum (can be interrupted) and well-developed prescutellar microtrichia.
Etymology
The species epithet, which is formed as an adjective, is derived from the Latin words apis (= [honey] bee) and forma (= shape), alluding to the honey bee-like appearance of this species.
Type material
Holotype SOUTH AFRICA: ♂, KwaZulu-Natal, Pietermaritzburg, 12 Oct. 1971, leg. M.E. Irwin (NMSA).
Paratype SOUTH AFRICA: 1 ♂, KwaZulu-Natal, Goskies Farm, Karkloof, 21 Dec. 1983, B.R. Stuckenberg leg. (NMSA).
Description
LENGTH. Body 7.5 mm, wing 5.8 mm.
HEAD (Figs 2H, 3G). Distance between eyes, 0.16–0.17 × width of head; post-ocular orbit wider, the width of post-ocular orbit dorsally 0.13–0.14 as wide as head; ocellar triangle isosceles, without median longitudinal groove; postpedicel (Fig. 3G) almost rounded, 1.2–1.3 × as long as deep, 1.6–1.7 × as long as pedicel; supra-alar setae yellow.
THORAX (Fig. 4C). Microtrichia on mediotergite covered about one third of width.
WING (Fig. 5A). Setae on costagium yellow; wing veins mostly yellow, but darker distally.
LEGS. Setae on legs yellow; only apex of pro- and mesofemur lighter, not also the base; of tarsi, only tarsomere 1 of metaleg darkened dorsally; microtrichia on metatibia dorsally relatively short like in M. argenteus comb. nov.
ABDOMEN (Fig. 7G). Relatively narrow, tergite 2 is 1.8 × and tergite 3 is 2 × as wide as long; tergites with a golden lustre, long, dense, golden setose; tergites 2–4 with transversal, yellow-white microtrichiose fasciae connected in the middle; fasciae on tergites 2+3 oblique and reaching lateral margins, tergite 4 with horizontal fasciae, widely separated from lateral margin; tergite 4 with wide microtrichiose posterior margin and one or two pairs of depressions; indistinct white microtrichia present anteromedially on
tergites 2–4, more developed on tergite 2, but on tergites 3+4 connected with fasciae along the median line. Male genitalia in Figs 10G, 11G, 12F.
Distribution
Afrotropical – South Africa (KwaZulu-Natal) (Fig. 16).
description: Published as part of Doczkal, Dieter, Radenković, Snežana, Lyneborg, Leif & Pape, Thomas, 2016, Taxonomic revision of the Afrotropical genus Megatrigon Johnson, 1898 (Diptera: Syrphidae), pp. 1-36 in European Journal of Taxonomy 238 on pages 24-25, DOI: 10.5852/ejt.2016.238, http://zenodo.org/record/3849874