Beardius breviculus 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 : 26

Beardius breviculus Reiss et Sublette

Beardius breviculus Reiss et Sublette, 1985: 189 .

Beardius breviculus Reiss et Sublette ; Epler (2001: 8.36), Jacobsen (2008: 98).

Beardius sp. B Jacobsen & Perry (2000: 138).

Material examined. Paratypes deposited in ZMBN.

Diagnostic characters. The species belongs in the truncatus group. The male can be separated from all other members of the genus by the combination of the following characters: median volsella absent; basal projection of inferior volsella triangular with comparatively short macrotrichia; and AR about 1.3. The pupa by the combination of: tergite II with strong, uniform shagreen; tergites VII–VIII bare; conjunctive III/IV bare; and paratergite VI with distal spinules.

Description. The species was described in detail by Reiss & Sublette (1985). The triangular structure considered as “median volsella” by Reiss & Sublette (1985) must be regarded as a basal lobe of the inferior volsella; median volsella is absent.

Distribution. The species is recorded from Panama and southern U.S. A ( Epler 2001; Reiss & Sublette 1985).