Quichuana montana, HULL, 1951: 65

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 : 102-103

QUICHUANA MONTANA HULL, 1951: 65

FIGURES 56 AND 57

Hull (1951) provides a detailed description of this species based on the male holotype, but without including the genitalia. The holotype is in good condition although the left metatarsus is detached and kept in a plastic capsule attached to the pin.

Diagnostic features

Male (holotype)

Head: Frontal triangle with long anteriorly directed black hairs and, on the eye margins, a line of lightyellow hairs; scape, pedicel, and basoflagellomere red, darkened dorsally; arista red; bf = 1.3; ventral area of the frontal prominence extensively red and thinly white pollinose on the area surrounding the antennae; face shiny black, with light-yellow hairs, sculp-

REVISION OF THE SYRPHID GENUS QUICHUANA 103

tured laterally, but bare and smooth centrally, from the frontal prominence to the mouth edge; face with white pollinosity on the eye margins; gena with a stripe of white pollinosity extending from the eye margin to the mouth edge.

Thorax: Scutum with two medial brown pollinose stripes extending on the anterior four-fifths of the scutum (posterior section of each stripe tapering towards the apex); scutum extensively covered with golden yellow hairs, but with scattered black hairs intermixed on the area above the wing insertion; PAPT posterodorsally, NP, and PC with conspicuous tufts of golden yellow hairs; AEP with golden yellow hairs; anterior spiracle reddish white; posterior spiracle white; scutellum brown, black on the lateral corners; scutellum only with long golden yellow hairs; tibia, tarsi, and apex of the femora red (metalegs darker, with nearly black markings on tibia); legs extensively pale haired, except for black hairs on the apical half of the profemur posteriorly, the apical third of the mesofemur posteriorly, and the apical third of the metafemur dorsally and ventrally; wings extensively microtrichose, very weakly brown pigmented on the basal part of the anterior margin.

Abdomen: Terga II–IV each with two lateral red markings, extending from the anterior to the posterior margin (narrowly on tergum IV posteriorly), and on the full length of the lateral margins; terga II–III red on the full length of the posterior margin; tergum I with a moustache arrangement of golden yellow hairs; terga extensively covered with golden yellow hairs; terga with black hairs on the posterior margin centrally and on the lateral margins of the posterior half of tergum II; posterior margin of terga II–IV laterally fringed with golden yellow hairs; sterna with long golden yellow hairs centrally and, on sternum IV posteriorly, black hairs.

Genitalia: Superior lobes as illustrated in Figure 56 ; surstyli broadly triangular, excavated basally, round at the apex ( Fig. 57 ).

Female

Unknown.

Material examined

Holotype: 1m, Holotype Quichuana montana Hull (handwritten on a red label)/Chanchamayo, Peru, 5-17-48, J. Schunke 1100 m (handwritten) / Holotype Quichuana montana Hull CNC no. 20430 (species name and number handwritten on a red label) ( CNC) .

Range

Peru.

Taxonomic notes

Large species (13.5 mm) with broad abdomen; similar to Q. inbio sp. nov. and Q. dissimilis sp. nov. Quichuana montana can be readily separated from Q. dissimilis sp. nov. by the male genitalia, see ‘Taxonomic notes’ under Q. dissimilis sp. nov. To separate Q. montana from Q. inbio sp. nov., see ‘Taxonomic notes’ under this species.

Figures

Figures 56–57. Quichuana montana male holotype genitalia, lateral view: 56, hypandrium; 57, epandrium. Scale bar: 1 mm.