Beardius parcus Reiss et Sublette

Pinho, Luiz Carlos, Mendes, Humberto Fonseca & Andersen, Trond, 2013, Revision of Beardius Reiss et Sublette, 1985 (Diptera: Chironomidae), with the description of twenty new species, Zootaxa 3742 (1), pp. 1-78 : 55

Beardius parcus Reiss et Sublette

Beardius parcus Reiss et Sublette, 1985: 183 .

Beardius parcus Reiss et Sublette ; Andersen & Saether (1996: 36), Jacobsen & Perry (2000: 141).

Chironomini gen. A6 ( Reiss 1976: 130, 1977: 70).

Material examined. Paratypes deposited in ZMBN. Additional material: Brazil, Mato Grosso State: Nova Mutum, Fazenda Buriti, 3 males, 04–14.ii.2002, light trap, H.F. Mendes; as previous except 1 male, 12.vi.2003; as previous except 2 males, 13.vii.2003. Ribeirão Cascalheira, Estrada para Fazenda Manaus, Represa 1 km após 2º afluente do Ribeirão Bonito, S12°55.599' W51°53.474', 5 males, 08.x.2007, light trap, L.C. Pinho et al. Ribeirão Cascalheira, Ribeirão Bonito, S12°52.590' W51°53.096', 1 male, 12.x.2007, light trap, L.C. Pinho et al. São Paulo State: Luiz Antônio, Jataí Ecological Station , 2 males, 09.iii.2006, light trap, L.C. Pinho; as previous except 1 male, 19.ii.2003, A.R. Calor & C. Santos .

Diagnostic characters. The species belongs in the parcus group. The male can be separated from all other members of the genus by the combination of the following characters: acrostichals absent; superior volsella pediform; and median volsella comparatively large, wart-like, with several setae. The female by: acrostichals absent; R and R 1 bare; and ventrolateral lobe with short microtrichia. The pupa by: tergite II with stronger shagreen orally; tergite VI without posterolateral patches of shagreen; tergites VII and VIII without shagreen; paratergite VIII with short spines; and spur on tergite VIII with dominant tooth and minute accessory teeth. The larva by: antenna with 7 segments; and clypeus separated from frontal apotome.

Description. Male and immatures were described in detail by Reiss & Sublette (1985). Andersen & Saether (1996) provided a detailed description of the female.

Distribution. The species is recorded from Brazil, Mexico, and Venezuela ( Reiss & Sublette 1985; Andersen & Saether 1996).