Quichuana undulatipila, Ricarte & Marcos-García & Hancock & Rotheray, 2012

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 : 118-119

QUICHUANA UNDULATIPILA RICARTE & HANCOCK SP. NOV.

FIGURES 22 , 65, 66 AND 83

Description

Male

Head: All eye hairs white; ocellar triangle with both long, slightly anteriorly directed, black and white hairs; ocellar triangle with white pollinosity on the anterior corner; frontal triangle shiny black, with a hump on the upper third, conspicuous in lateral view; frontal triangle with long, anteriorly directed, pale hairs and, on the hump, a few black hairs; basoflagellomere rectangular, nearly 1.5 ¥ as long as the pedicel, but conspicuously broader than this ( Fig. 22 ); bf = 1.5; face black, with white pollinosity denser on the eye margin and on the gena; face with a central shiny stripe restricted to the facial tubercle, and not reaching the antennae; face with two lateral stripes thinly pollinose; face pale haired except for the central bare stripe; occiput pollinose.

Thorax: Scutum black, coarsely punctured, with two medial white pollinose stripes extending beyond the TS; scutum and pleuron pale haired; scutum with short, posteriorly directed hairs; NP, PAPT, AEP, dorsal katepisternum, and PC with hairs longer than those on the scutum; pleural plates without tufts of hairs; anterior and posterior spiracles dark brown; scutellum dark brown, with pale hairs; legs black, except for pale apex of the femora and base of tibiae; legs extensively pale haired, except for scattered short, black, adpressed hairs on the apical part of the metafemur dorsally; wings conspicuously brown pigmented on the anterior margin, although lightly in cell C; cells DM, CuP, CuA1, anal lobe, alula, and C with areas bare of microtrichia or more sparsely microtrichose than the rest of the wing.

Abdomen: With lateral margins nearly parallel; terga extensively black, pale haired; tergum I without a moustache arrangement of hairs; lateral margins of tergum I posteriorly and of tergum II anteriorly with long pale hairs, most of these conspicuously wavy in the apical third to half of the hair; sterna with long white hairs.

Genitalia: Superior lobes reduced ( Fig. 65 ); surstyli straight, about bar-shaped ( Fig. 66 ).

Female ( Fig. 83 )

Same as the male, expect frons with an anteriorly directed chevron of white pollinosity connected to the pollinosity of the eye margins; frons with short pale hairs, erect or laterally adpressed on the chevron, and anteriorly directed hairs on the lower part of the frons; the brown pigmentation on the anterior margin of the wings is heavier than in the male; lateral margins of terga I–II with fewer long hairs than in the male.

Etymology

The epithet ‘ undulatipila ’ means ‘wavy hairs’, and refers to the long, wavy hairs on the lateral margins of terga I and II in males of this species.

Material examined

Holotype: 1m, Brasilien, Nova Teutonia , 27°11 ′ B, 52°23 ′ L, Fritz Plaumann, 24.xi.1938 (date handwritten)/Brit. Mus. 1939-66 (right mesotarsus missing, left metatarsus and right metatarsus pasted on a label, but specimen only slightly disturbed by liquid) ( NHM).

Paratypes: BRAZIL: 2m & 2f, Nova Teutonia , 27°11 ′ B, 52°23 ′ L, Fritz Plaumann, Brazil, x.1975, det. as Quichuana bezzii by FCT (only 1m) , USNM ENT codes 00036203–00036205 (USNM).

Range

Brazil.

Taxonomic notes

Medium size species (10 mm, holotype) with slender abdomen; similar to Q. bezzii and Q. brevicera ; to separate this species from Q. bezzii see ‘Taxonomic notes’ under Q. bezzii ; male genitalia with distinctive superior lobes and surstyli ( Fig. 65, 66 ); Q. undulatipila sp. nov. can be readily separated from Q. brevicera by the absence of a narrow band of white pollinosity on the posterior margin of terga III–IV, and the absence of a moustache arrangement of pale hairs on tergum I, both features present in Q. brevicera .

QUICHUANA URSULA HULL, 1949

Figures

Figures 20–22. Quichuana right antennae, lateral inner view: 20, Quichuana pulverifacies sp. nov., female holotype; 21, Quichuana bezzii, male lectotype; 22, Quichuana undulatipila sp. nov., male holotype. Scale bars: 1 mm (top scale bar applies to Fig. 20 only).

Figures 65–66. Quichuana undulatipila sp. nov. male genitalia, lateral view: 65, hypandrium; 66, epandrium. Scale bar: 1 mm.

Figures 80–83. Overall appearance of different Quichuana species, dorsal view. 80, Quichuana cincta, female from Mexico; scale bar = 2 mm. 81, Quichuana inca, male holotype; scale bar = 1 mm. 82, Quichuana parisii, female paralectotype, scale bar = 1 mm. 83, Quichuana undulatipila sp. nov., female paratype; scale bar = 2 mm.