Quichuana hulli Ricarte & Marcos-García & Hancock & Rotheray 2012, SP. NOV.

Description

Female (holotype)

Head: Eye hairs slightly lighter on the lower half of the eye; ocellar triangle with black hairs; frons with sparse brownish pollinosity; frons with black and golden yellow hairs intermixed dorsally, and black hairs ventrally and on the dorsal area of the frontal prominence; eye margins with golden yellow hairs; antenna dark red, especially darkened on the scape and the base of the pedicel; ventral area of the frontal prominence brownish, with whitish pollinosity; face black, with long golden yellow hairs, except for a central, bare, shiny stripe from the bottom of the frontal prominence to the mouth edge; gena with a stripe of white pollinosity from the mouth edge to the eye margin; occiput wholly pollinose and with long golden yellow hairs, and, on the upper third, a line of long black hairs.

Thorax: Black; scutum with two medial brownish pollinose stripes reaching the posterior margin of the scutum; scutum yellow haired, except black haired behind the TS and on the area above the wings; NP, PAPT, and PC with tufts of golden yellow hairs; scutellum dark brown, black on lateral corners; anterior half of the scutellum black haired centrally and posterior half yellow haired; all femora extensively black; apical half of the pro- and mesofemur red anteriorly; apical half of the protibia with blackish markings, the remaining area red; mesotibia red; apical two-thirds of the metatibia blackish, the remaining area red; tarsi red, except for the darkened dorsal area of metatarsomeres 4–5; femora, tibiae, and tarsi mostly with golden yellow hairs, but at least with scattered black hairs or setae; wings wholly microtrichose and brown pigmented on the anterior half.

Abdomen: Black, without conspicuous pale markings; most of the surface of terga II–V covered with sparse brownish pollinosity; tergum I with a moustache arrangement of golden yellow hairs, with a central gap of about a third of the tergum length; posterior margin of terga II–IV laterally fringed with adpressed golden yellow hairs; posterior half of terga II–IV with a medial nearly circular patch of black hairs; lateral margins of the posterior half of tergum II also with scattered black hairs; tergum V mainly black haired.

Male

Unknown.

Etymology

The epithet ‘ hulli ’ refers to Dr Frank M. Hull, the entomologist who published the only monograph of the genus Quichuana prior to the present study.

Material examined

Holotype: f, Costa Rica, Tausito Jiménez, Cartago, ex bromealiad, larva 21.vii.2007, puparium 1.ix.2007, date of adult emergence unrecorded, leg. MAM (CR186) (basoflagellomores and the left proleg missing) (CEUA).

Range

Costa Rica.

Taxonomic notes

Medium size species (10.7 mm) with broad abdomen. Quichuana hulli sp. nov. can be separated from other species by the following unique combination of characters: face with golden yellow hairs; antenna dark red; scutum with two medial pollinose stripes reaching the posterior margin of the scutum; PAPT posterodorsally, NP, and PC with tufts of golden yellow hairs; femora extensively black and tibiae extensively red; metatarsus darkened on tarsomeres 4–5 dorsally; wing wholly microtrichose; width of the gap between the two groups of laterally directed hairs on tergum I more than a quarter of the tergum width; terga extensively black and covered with sparse brownish pollinosity; posterior margin of terga II–IV laterally fringed with adpressed golden yellow hairs.