Quichuana longicauda Ricarte & Marcos-García & Hancock & Rotheray 2012, SP. NOV.
Creators: name: Ricarte, Antonio
name: Marcos-García, M. Ángeles
name: Hancock, E. G.
name: Rotheray, Graham E.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Quichuana
Quichuana longicauda

description: QUICHUANA LONGICAUDA RICARTE & HANCOCK SP. NOV.   
FIGURES 2 AND 8  
 Description   
Male  
 Head: Eyes with white hairs, except for the brownish hairs on upper third of the eye; ocellar triangle with black hairs; frontal triangle with long, black hairs centrally and pale hairs laterally; antenna black, except for red arista; basoflagellomere nearly rectangular, round at the apex (Fig. 2); bf = 1.9; face pollinose, with a central, shiny, black stripe, not reaching the antennae, and two lateral stripes slightly narrower than the central stripe (lateral stripes with sparse pollinosity not obscuring the background colour); frontal prominence pollinose ventrally; face with silver, white hairs.   
 Thorax: Scutum with two pollinose stripes tapering towards the apex, each stripe as wide as half the width of the basoflagellomere; pollinose stripes extending on the anterior two-thirds of the scutum; scutum with long, yellowish white, posteriorly directed hairs, and a few short black hairs above the wings; pleural hairs pale, with some reduced tufts of hairs on PAPT posterodorsally and NP; PC with long, yellowish hairs; scutellum dark brown, with long pale hairs; pro- and mesofemur, tibia, and tarsus dark brown, although tibia and tarsus lighter; metafemur black, with reddish areas apically; metatibia extensively dark brown, red at the very apex; femora and tibiae mainly pale haired; dorsal surface of the apical third of metafemur with short, black, adpressed hairs and spiny black hairs on the ventral surface of the apical third; tarsi with short, black, adpressed hairs dorsally; wings weakly brown pigmented on the surface, anterior to vein R 4+5 (cell C even with lighter pigmentation than that on the rest of the pigmented surface); wing with areas bare of microtrichia on cell R posterior to spurious vein, on most of the basal third of C, most of the basal two-thirds of BM, and most of the basal third of CuP; alula with a semicircular area bare of microtrichia anteriorly; reddish white calypteres with blackish margins; halteres reddish.   
 Abdomen: Slender and tapering towards the apex; terga black; lateral surface of tergum I with laterally directed hairs; terga with whitish yellow hairs, except for the black hairs on the posterior third of tergum II, posterior two-thirds of tergum III, and posterior third of tergum IV; sterna dark brown.   
 Genitalia: Similar to that of Q. angustiventris but with superior lobes shorter and more developed on the anterior surface (Fig. 8).   
Female  
 Same as male except eyes with white hairs on the lower half and brown hairs on the upper half; ocellar triangle with whitish yellow hairs; frons with an anteriorly directed chevron of silver pollinosity; frons extensively pale haired; antenna brownish black, narrowly reddish at the apex of pedicel and at the base of basoflagellomere; basoflagellomere slightly wider basally than that in the male; bf ± 2; facial, lateral stripes more faint than those in males because of the presence of denser pollinosity; face with whitish yellow hairs; cells R and R 4+5 pigmented near the vein r–m anteriorly, and on some reduced areas in the cell R centrally; terga with whitish yellow hairs except for a few black hairs on the posterior margin of tergum II, posterior two-thirds of tergum III, and posterior fifth of tergum IV.   
 Etymology   
 The noun in apposition ‘ longicauda ’ means ‘long tailed’, and refers to the exceptionally long ‘tail’ of the larva of this species.   
 Material examined   
 Holotype (USNM): 1m reared from larva collected in a bromeliad, Trinidad (19), Lopinot, 22.vii.1998, Gl. Univ. Epdtn /em 5.x.1998 / USNMNH 2050003.   
 Paratypes (HM): TRINIDAD: 1f reared from a larva collected in a bromeliad, Trinidad, Cumuca (3), 28.vii.1998, Gl. Univ. Epdtn, em 16.xi.1998; 1m, Lopinot (19), larva 22.vii.1998 (ex bromeliad), adult 23.ix.1998; 1f with puparium, Lopinot (17), larva 17.viii.1998, adult 2.ix.1998; 2f with puparium, Simla, larva 3.vii.1996 (ex Gravisia water tank), det. as Quichuana by EG Hancock 1996; 1f with puparium, Hollis Dam (1), larva 9.vii.1998 (ex bromeliad), adult 24.vii.1998, Gl. Univ. Epdtn; 1f with puparium, Hollis Dam (1), larva 13.viii.1998, adult 24.viii.1998; 1f with puparium, Lopinot (19), larva 24.viii.1998, adult 31.viii.1998; 1f with puparium, Mt. Harris, Phom Road (12), larva 29.vii.1998 (ex bromeliad), adult 31.viii.1998, Gl. Univ. Epdtn; 1f (partially eaten) with puparium, Lopinot (7), larva 6.vii.1998 (ex paw paw), adult 28.ix.1998; 1f with puparium, Lopinot (19), adult (?) 29.viii.1998; 1f with puparium, Lopinot, Samaan Tru (1), larva 6.vii.1998 (ex sap run), adult 12.x.1998, Gl. Univ. Epdtn (loan from USNMNH 2050003).   
 Range   
Trinidad and Surinam (specimens from Menno Reemer).  
 Taxonomic notes   
 Small species (9.1 mm, holotype) with slender abdomen; although males of Q. longicauda sp. nov. can be readily separated from males of Q. angustiventris by the absence of a thick mat of yellow hairs obscuring the background colour of the frontal triangle, genitalia are similar in both species; genitalia of Q. longicauda sp. nov. differ from genitalia of Q. angustiventris in having superior lobes shorter and more developed on the anterior surface (Fig. 8); in both males and females of Q. longicauda sp. nov. the basoflagellomere is shorter and wider (Fig. 2) than that in the similar Q. picadoi (Fig. 75, 76), and the wing is more extensively bare of microtrichia than in the latter species.
description: Published as part of 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, pp. 72-131 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) (Zool. J. Linn. Soc.) 166 (1) on pages 98-99, DOI: 10.1111/j.1096-3642.2012.00842.x, http://zenodo.org/record/5408533