Hypselosyrphus
Creators: name: Reemer, Menno
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Hypselosyrphus

description: Key to species of Hypselosyrphus
1. Scutellum triangular, apex acute. (fig. 65)......................................................... amazonicus
– Scutellum not triangular: semicircular or apicomedially sulcate.................................................. 2
2. Alula entirely microtrichose............................................................................. 6
– Alula with small bare area basomedially................................................................... 3
3. Thorax and abdomen entirely yellow (fig. 70, 71)........................................................ helvus
– Thorax and abdomen largely black........................................................................ 4
4. Basoflagellomere about as long as scape or longer. Wing either with strongly contrasting yellowish patch posteriad of pterostigma (male) or with middle 1/3 strongly contrasting whitish yellow (female) (figs. 74, 75)................ marshalli
– Basoflagellomere maximally half as long as scape. Wing without strongly contrasting yellow parts..................... 5
5. Tergite 4 with posterior margin widely yellowish; sternite 4 largely yellowish. Scutellum entirely black pilose. Wing tinged yellowish on apical third, otherwise brownish............................................................. anax
– Tergite and sternite 4 entirely blackish brown. Scutellum black pilose, except pale pilose posteroventrally. Wing entirely tinged brownish..................................................................................... plaumanni
6. Wing with contrasting pattern of dark brown and yellow fasciae (fig. 87, 106)...................................... 7
– Wing without contrasting colour pattern (may be tinged with brown or yellow)..................................... 8
7. Mesonotum and scutellum yellow pilose............................................................... pingo
– Mesonotum and scutellum black pilose........................................................... vexillipennis
8. Hind tibia yellow, yellow pilose. Only female known................................................ corbiculipes
– Hind tibia at least partly brown, black pilose................................................................ 9
9. Abdomen orange to reddish brown...................................................................... 11
– Abdomen black...................................................................................... 10
10. Occiput narrow over entire length (fig. 79)............................................................. maurus
– Occiput ventrally widened (fig. 103)................................................................ ulopodus
11. Scutellum apicomedially sulcate. Face dark brown. Thorax dark brown..................................... trigonus
– Scutellum more or less semicircular, not sulcate. Face yellow. Thorax yellow, except for blackish brown maculae on mesoscu- tum....................................................................................... pseudorhoga
description: Published as part of Reemer, Menno, 2013, Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees, pp. 1-88 in Zootaxa 3697 (1) on pages 8-9, DOI: 10.11646/zootaxa.3697.1.1, http://zenodo.org/record/284383