Quichuana dominica, THOMPSON, 1981: 144

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 : 92

QUICHUANA DOMINICA THOMPSON, 1981: 144

The type material of Q. dominica is a holotype and a paratype, both females, collected in 1965 in the Caribbean island of Dominica, and deposited in USNM ( Thompson, 1981). Male is unknown .

Diagnostic features

Female

Antenna dark brown; bf = 1.75; face with only a central shiny stripe; medial pollinose stripes on the anterior half of the scutum faint; scutum extensively yellow haired, only with some black hairs above the wings; scutellum yellow haired; pro- and mesofemur red on the apical two thirds and metafemur red on the apical half; NP, PAPT posterodorsally, and PC with conspicuous golden yellow hairs; tibiae red; tarsomeres 2–5 black dorsally; wing extensively microtrichose, with bare areas as shown in Thompson (1981: fig. 174); alula wholly microtrichose; abdomen black; tergum I with a moustache arrangement of golden yellow hairs; posterior half of tergum II with short black hairs; posterior two-thirds of terga III and IV also with short black hairs, as well as all tergum V; sterna with white hairs.

Material examined

The holotype was re-examined by Antonio Ricarte on the basis of three images provided by Ximo Mengual (body in lateral and dorsal view, and head in frontal view).

Range

Dominica.

Taxonomic notes

Small species (10.3 mm) with slender abdomen; females of Q. dominica can be separated from females of most of the similar species such as Q. angustiventris or Q. picadoi by the absence of lateral shiny stripes on the face, and from Q. calathea by the proportion of the tergum length covered in black hairs (see ‘Diagnostic features’ under each species and the key provided); additionally, Q. dominica has areas bare of microtrichia in cells bc and C, whereas in Q. calathea these cells are wholly microtrichose.

QUICHUANA FASCIATA ( SACK, 1941)