Quichuana hermosa, HULL, 1951: 67

Ricarte, Antonio, Marcos-García, M. Ángeles, Hancock, E. G. & Rotheray, Graham E., 2012, Revision of the New World genus Quichuana Knab, 1913 (Diptera: Syrphidae), including descriptions of 24 new species, Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 166 (1), pp. 72-131 : 93-94

QUICHUANA HERMOSA HULL, 1951: 67

Diagnostic features

Female

Head: Brown pollinose frons, with black hairs and, at the eye margins, pale hairs; basoflagellomere oval; bf = 1.2; frontal prominence reddish below and to the sides of the antennae; lower part of frontal prominence thinly white pollinose; white-haired face, with two lateral white pollinose stripes extending from the mouth edge to the frontal prominence (the pollinose stripes extend along the eye margins and taper at the upper end, which connects with the sparse pollinosity of the lower part of the frontal prominence); face with a central, bare, shiny stripe.

Thorax: Scutum with two medial, wide, brown pollinose stripes faintly reaching the posterior margin of the scutum; PAPT posterodorsally, NP, and PC with conspicuous tufts of white hairs; brown scutellum, black on lateral corners; scutellum with long pale hairs only; pro- and mesotibia, tarsi, and apex of femora red; metaleg blackish, except for the extreme apices of the femora and tibiae, the tarsus ventrally, and tarsomeres 1–2 dorsally, which are red; legs with pale hairs except for the following areas, which have black hairs – apical half of profemur posteriorly, apical third of metafemur posteriorly and ventrally, and at the apex of metafemur dorsally; wings extensively microtrichose except for some small bare areas in cells BM and CuP, and at base of the anal lobe; wings very lightly brown pigmented anteriorly.

Abdomen: Terga II–III each with two lateral red markings, each connecting the anterior and posterior margin in tergum II; tergum III with two additional, narrow, red bands on the posterior margin; tergum IV black; terga II–V extensively coated in brownish pollinosity, except for a posterior band, which is shiny; tergum I with a moustache arrangement of white hairs with a central gap; terga II–IV mainly with white hairs, but with scattered black hairs posteriorly on the following areas – black parts of terga II–III centrally and lateral margins of the posterior half of tergum II; posterior margin of terga II–IV laterally fringed with conspicuous, adpressed, white hairs ( Fig. 77 ); tergum V with long black hairs posteriorly; sterna with long pale hairs centrally.

Male

Unknown.

Material examined

Holotype: f, Holotype Quichuana hermosa Hull (handwritten on a red label)/ Holotype Quichuana hermosa Hull CNC no. 20434 (species name and number handwritten on a red label)/Chanchamayo, Peru, 8-19-48, J. Schunke 1100 m (handwritten) ( CNC) .

Range

Peru.

Taxonomic notes

Medium size species (11.4 mm) with broad abdomen. To distinguish Q. hermosa from females of the similar species Q. argentea and Q. fasciata , see ‘Taxonomic notes’ under these species.

Figures

Figures 73–79. Features of the ‘slender’ and ‘robust’ species of Quichuana. 73–76, ‘slender’ species. 73, Quichuana angustiventris, male from Trinidad with attached puparium, overall appearance, dorsal view; scale bar = 2 mm. 74, Quichuana calathea, male from Costa Rica, eye contiguity and vertical triangle; scale bar = 0.5 mm. 75–76, Quichuana picadoi, male: 75, anterior view; 76, lateral view; scale bar = 1 mm. 77–79, ‘robust’ species. 77, Quichuana fasciata, female lectotype, overall appearance, dorsal view; scale bar = 2 mm. 78, Quichuana dissimilis sp. nov., male holotype, eye contiguity and vertical triangle; scale bar = 1 mm. 79, Quichuana atra sp. nov., female, anterior view; scale bar = 1 mm.