Genus Eburella Monné & Martins, 1973

Eburella Monné & Martins, 1973: 152.

Eburella – Martins 1997: 67; 1999: 146. — Monné 2005: 140; 2012: 17.

Type species

Eburella pumicosa Monné & Martins, 1973 (original designation).

Remarks

Eburella was described by Monné & Martins (1973) for a single species, Eburella pumicosa Monné & Martins, 1973; and characterized by the absence of pronotal tubercles; the presence, in males, of areas densely hairy at sternites I–IV and tarsomeres swollen. Later, Martins (1997) described Eburella pinima Martins, 1997 based on a single female; although he could not check the male characteristics, he justified the inclusion of the species in Eburella by the absence of the anterolateral tubercles of prothorax and the pronotal tubercles and the antennomere III without longitudinal sulcus. Later, Martins & Galileo (1999) described a third species, Eburella longicollis Martins & Galileo, 1999, based on a male specimen which did not have densely hairy areas on the sternites, considered by them as a specific characteristic. Recently, Botero (2013) described the male of Eburella pinima and noticed that the urosternites of males do not have densely hairy areas, corroborating the proposal of Martins & Galileo (1999) that this is a specific characteristic. Currently, the genus is composed by three species and known from Bolivia, Brazil, Paraguay and Peru.

Key to species of Eburella (modified and translated from Martins 1999)

1. Surface of pronotum with sparse, very fine and very shallow punctures (almost imperceptible); apex of meso- and metafemora and femoral spine concolorous with body integument ……………2

– Surface of pronotum with dense and coarse punctures (clearly visible); apex of meso- and metafemora and femoral spine black ………………………………………………………………3

2. Body elongate and narrow; elytral length / width ratio greater than 4; sides of prothorax without spiniform tubercles; pronotum without black spots; eburneous elytral callosities short (shorter than scape). Peru, Bolivia (Santa Cruz) …………………………………… Eburella pinima Martins, 1997

– Body shorter; elytral length / width ratio less than 4; sides of prothorax with spiniform projection; pronotum with two black spots; eburneous elytral callosities long (longer than scape). Colombia (Cundinamarca, Vichada)…………………………………………………… Eburella migueli sp.nov.

3. Prothorax about as long as wide; distance between upper eye lobes four times width of upper eye lobe; males with densely hairy areas on sternites I–IV. Brazil (Mato Grosso, Mato Grosso do Sul), Paraguay, Bolivia (Santa Cruz) ……………………………… E. pumicosa Monné & Martins, 1973

– Prothorax longer than wide; distance between upper eye lobes twice width of upper eye lobe; males without densely hairy areas on sternites. Bolivia (Santa Cruz) ………………………………………………………… Eburella longicollis Martins & Galileo, 1999