Quichuana tica, 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 : 116-118

QUICHUANA TICA RICARTE & ROTHERAY SP. NOV.

FIGURES 13 , 62–64

Description

Male

Head: Eye hairs brown, but hairs sparser lower down; vertical triangle black with white pollinosity only on the anterior corner; ocellar triangle with long black hairs; frontal triangle black with long black hairs, but with light-red hairs on the eye margins; lunnules brownish; antenna extensively black, only with pedicel dark red apically and basoflagellomere dark red basally; basoflagellomere round; red arista, darkened apically; ventral area of the frontal prominence brownish, with sparse pollinosity; face black, with long brown to yellow hairs, except for a bare central shiny stripe from the bottom of the frontal prominence to the mouth edge; gena with a stripe of white pollinosity from the eye margin to the mouth edge; eye margins pollinose on the gena and the whole occiput; occiput with long white hairs and, on the upper third, scattered long black hairs intermixed.

Thorax: Scutum black pollinose, with two medial very faint greyish stripes not extending beyond the TS; scutum with yellow hairs on the half in front of the TS and black hairs on the half behind the TS; NP and PAPT posterodorsally with tufts of golden yellow hairs; AEP with long black hairs dorsally; PC with black hairs, but not arranged in tufts; anterior and posterior spiracles black; scutellum dark brown, even darker on the lateral corners; scutellum with black hairs centrally and long yellow hairs posteriorly; all femora extensively black, with red markings on about the apical fifth; pro- and mesotibia red; metatibia extensively dark brown, only red basally and apically; tarsomeres 1–2 red dorsally, but tarsomeres 3–5

REVISION OF THE SYRPHID GENUS QUICHUANA 117

black; all femora and tibiae with both yellow and black hairs; wings wholly microtrichose, with lightbrown pigmentation anteriorly.

Abdomen: Tergum I with two triangular groups of golden yellow hairs obscuring the background colour of the tergum, separated for a distance of less than a quarter of the tergum width; terga II–IV red laterally, with red erect hairs but also with a semicircular band of posteriorly directed hairs on the posterior margin; sterna I–II black overall, but sterna III–IV black only centrally.

Genitalia: Superior lobes claw shaped ( Fig. 62 ); anterior part of the surstyli gently excavated medially; surstyli with long hairs posteriorly ( Figs 63, 64 ).

Female

Same as the male, except dorsal area of the frons with black and light-yellow hairs intermixed; ventral area of the frons and dorsal area of the frontal prominence with black hairs; eye margins with light-yellow hairs; frons with an anteriorly directed chevron of brown pollinosity; scutum with two approximated brown pollinose stripes extending on the anterior threequarters of the scutum; scutum with yellow hairs and, on the half of the scutum behind the TS, black intermixed hairs; area of the scutum above the wing insertion with black hairs; PC with tufts of black hairs and sometimes pale hairs posteriorly; all femora extensively black, with red markings on about the apical quarters or less; metatibia red, with black markings on the central third or more; femora, tibiae, and tarsi with both golden yellow and black hairs, except for the wholly golden yellow-haired mesotibia; terga II–V covered with blackish pollinosity, except for a shiny more or less narrow band on the posterior margin; terga II–IV with yellow hairs, except for the black hairs on the posterior third of the tergum or more; terga II–IV each with two lateral red markings extending on most of the length of the lateral margins; red markings very faint on tergum IV.

Etymology

The noun in apposition ‘ tica ’ is the colloquial term for a Costa Rican woman, as this species is only known from Costa Rica.

Material examined ( INBio )

Holotype: 1m, Est. La Casona , 1520 m, Res. Biol. Monteverde, Prov. Punt., leg. N. Obando, LN _ 253250_449700, iv.1993 /CRI001181800.

Paratypes: COSTA RICA: 4m, Est. La Casona, R.B. Monteverde, Prov. Punta, 1520 m, leg. N. Obando, LN_253250_449700#2819 and 2820, iv.1992, iv.1994, and iii.1994 (CRI000793420, 1781611, 1781615, 1764879, 1764873, and 1764858); 4f, Est. La Casona, Res. Biol. Monteverde, Prov. Puntarenas, 1520 m, each one with the following specific information: ‘ 3–24.iv.1995, leg. A. Azofeita, L_N_253900_449300 #5288 ( INBio CRI 002 452995)’; ‘ 27.iii–24.iv.1995, leg. K. Martínez, L N 253900 449300 #4427, det. as Quichuana CR-5 by M. Zumbado 1996 ( INBio CRI 002 182314)’; ‘leg. N. Obando, iv.1992 L-N 253250.449700 ( INBio CRI 000 793427)’; ‘ iv.1994. leg. N. Obando, L N 253250_449700 #2819 ( INBio CRI 001 764869)’; 1m, Est. La Casona, Res. Biol. Monteverde, Prov. Puntarenas, 1520 m, L N 253250_449700#2819 and 2820 (CRI001764878 and 1781622).

Range

Costa Rica.

Taxonomic notes

Medium to large size species (13 mm) with broad abdomen; Q. tica sp. nov. is similar to Q. inbio sp. nov., from which it can be separated both by the wholly microtrichose cell CuP and by the very close groups of laterally directed golden yellow hairs on tergum I (in Q. inbio sp. nov. the width of the gap between these two groups of hairs is about a third of the tergum width); in the male genitalia of Q. tica sp. nov. the superior lobes are claw shaped ( Fig. 62 ), so more slender than those in Q. inbio sp. nov. ( Fig. 40 ); in Q. tica sp. nov. the surstyli are less tapering towards the apex ( Fig. 63 ) than those in Q. inbiosp . nov. ( Fig. 41 ), the posterior hairs are shorter than those in Q. inbio sp. nov., and the anterior excavation on the surstyli is less defined in Q. tica sp. nov. ( Fig. 63 ) than in Q. inbio sp. nov. ( Fig. 41 ).

Figures

Figures 9–14. Quichuana right antennae, lateral inner view: 9, Quichuana boliviana sp. nov., female holotype; 10, Quichuana argentea sp. nov., female; 11, Quichuana fasciata, female lectotype; 12, Quichuana solitaria sp. nov., female holotype; 13, Quichuana tica sp. nov., female; 14, Quichuana communis sp. nov., male. Scale bars: 1 mm (top scale bar applies to Fig. 9 only).

Figures 62–64. Quichuana tica sp. nov. male genitalia: 62, hypandrium, lateral view; 63, epandrium, lateral view; 64, left part of epandrium, anterior view. Scale bar: 1 mm.

Figures 40–42. Quichuana inbio sp. nov. male genitalia: 40, hypandrium, lateral view; 41, epandrium, lateral view; 42, left part of epandrium, anterior view. Scale bar: 1 mm.