Three new species , a lectotype designation , and taxonomic and geographic notes in Eburiini ( Coleoptera , Cerambycidae , Cerambycinae )

three new species of eburiini are described: Beraba hovorei sp. nov. from ecuador, Eburella migueli sp. nov from Colombia and Susuacanga marcelae sp. nov. from Mexico. A new combination, Quiacaua vespertina (Monné & Martins, 1973) comb. nov., and the transfer of Eburia (Eburia) stroheckeri Knull, 1949 to Eburia (Eleutho) thomson, 1864 are proposed. A key to species of Beraba Martins, 1997, Eburella Monné & Martins, 1973 and Quiacaua Martins, 1997 is provided. Moreover, the geographical distribution for 15 species of eburiini is expanded. A lectotype and a paralectotype for Volxemia dianella Lameere, 1884 are designated.


Introduction
the tribe eburiini was proposed under the name "Éburiites" by Blanchard (1845) and was characterized by the simple, spineless antennae, enlarged terminal palpomeres and short, relatively unprojected genae.eburiini is currently composed of 22 genera and 255 species, all with geographical distribution restricted to North, Central (including the Caribbean) and South America.Eburia Lacordaire, 1830 and Eburodacrys White, 1853 are the largest genera, comprising about 75% of the species of the tribe (87 and 89 species, respectively) (Botero 2015;Monné 2015).
In this work, one species of Beraba Martins, 1997, one species of Eburella Monné & Martins, 1973 and one species of Susuacanga Martins, 1997 are described.Eburodacrys vespertina Monné & Martins, 1973 is transferred to Quiacaua Martins, 1997, new combination. Eburia stroheckeri Knull, 1949, currently allocated in the nominative subgenus, Eburia, is transferred to Eburia (Eleutho) thomson, 1864.the geographical distribution is expanded for 15 species.the keys proposed by Martins, 1999 for the genera Beraba, Eburella and Quiacaua are modified to include the new species.

Description Male
Integument brownish-orange.Ventrally dark.Posterior region of head, sides of pronotum, pronotal tubercles, base of elytra, anterior and posterior region of posterior eburneous callosities and elytral spines black.Antennomeres III-X, femora and tibia bicolored: antennomeres with basal half brownishorange and apical half light brown; femora light brown with base brownish-orange and tibiae brownishorange with apex light brown.
Body covered by long, erect and sparse setae, denser at inner face of basal antennomeres.Ventrally with dense grayish pubescence.Distance between upper lobes three times width of upper lobe.Antennae exceeding elytral apices at apex of antennomere VIII.Prothorax as long as width (including lateral tubercle), with lateral tubercle clearly visible, and acute.Pronotum with dense grayish pubescence, glabrous at center and with two anterior tubercles weakly elevated and rounded at top.Surface of pronotum with some shallow wrinkles.
Scutellum covered by dense grayish pubescence.elytra about 3.5 times longer than prothorax; surface with coarse punctuation on basal half, finer and shallower towards to apex.Each elytron with three eburneous callosities: one basal, elliptical; and two posterior, narrow and elongate (the inner slightly wider than external), the external one at least one-third of elytral length, separated from inner by distance equivalent to width of a callosity, the external starting ahead the inner.elytral costae visible between anterior and posterior callosities.Apex of elytra with external spine and with acute sutural projection.

Variability
the black areas of elytra can be lighter; the dark area at the anterior and posterior region of the posterior eburneous callosities can expand between the callosities and surrounding the external margin of the external callosity.In females, the antennae exceeding elytral apices at antennomere X.

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.

Etymology
The specific name is a genitive patronym in honor of my friend Miguel A. Monné, an inspiration to many budding cerambycidologists, for his work on the Neotropical Cerambycidae.Miguel is one of the authors of the Eburella genus.

Description Female
Integument reddish-orange.Apex of mandibles, two spots at anterior third of pronotum and anterior and posterior region of posterior eburneous callosities, black.
Distance between upper lobes three times width of upper lobe.Antennae exceeding elytral apices at antennomere VIII.Inner face of scape, pedicel, and antennomeres III-VI with long erect setae.Prothorax longer than wide (including lateral tubercle), with small lateral tubercle.Pronotum with long, erected and sparse yellow setae, surface with sparse, very fine and very shallow punctures, without wrinkles.
Prosternal process, mesosternum, mesepisternum, mesepimerum, metepisternum and lateral regions of metasternum covered with dense whitish pubescence.elytra about four times longer than prothorax; surface with uniform, fine and shallow punctation.Each elytron with three eburneous callosities: one basal, elliptical; and two posterior, joined, equal in length and more elongate than basal callosities.Apex of elytra with external spine and with acute sutural projection.
Femora and tibiae fine and elongate; apical apex of meso-and metatibiae with long inner spine (longer than elytral spine).Sternites decreasing in length, the first one twice length of fifth, surface with sparse, long, white setae.

Geographical distribution
United States of America (Florida).

Remarks
In addition to the characteristics mentioned by Vitali (2007), the subgenus Eleutho can be characterized and differentiated from the nominative subgenus, Eburia, by the scape and basal antennomeres being granulate, mainly in males (Fig. 2C), and by antennomeres III-IX with projection in the outer side of the apex (Fig. 2A).examination of material of Eburia stroheckeri, including photographs of the holotype (Fig. 2B-C), allowed me to conclude that this species has the characteristics of Eburia (Eleutho) and I include it in that subgenus as a new subgeneric assignment.

Remarks
Susuacanga was described by Martins (1997) to incorporate three South American species of Eburia.recently, tavakilian (2013) and Botero (2014) transferred other species to the genus and currently Sususacanga is composed by 12 species.

Differential diagnosis
Susuacanga marcelae sp.nov. is similar to S. poricollis (Chemsak & Linsley, 1973) in having the median lateral tubercle of pronotum projected in a long spine, apex of meso-and metafemora with spines shorter than the pedicel and elytra with posterior eburneous callosities shorter than the length of the scape.Susuacanga marcelae sp.nov.differs by the integument being yellowish-orange, the anterior eburneous elytral callosities contiguous as in the same way the posterior and the elytral apices bispinose.
In S. poricollis the integument is dark brown, the anterior eburneous elytral callosities are separated between them as in the same way the posterior and the elytral apices have only an inner spine.the scape strongly depressed (Fig. 2e) is a unique characteristic among the species of Susuacanga.

Etymology
The specific name is a genitive patronym in honor of my friend and mentor Marcela L. Monné, for all her support during my graduate studies and in recognition of her work on Cerambycidae.

Remarks
the genus Quiacaua was described by Martins (1997) and characterized by the shiny integument, the scape subpiriform and with basal sulcus; the prothorax with lateral tubercles well developed and antero-lateral tubercles weakly developed; the surface of pronotum rugose-punctate; the mesosternum with tubercle; the elytral apex with a long external spine and a sutural projection and the meso-and metafemora with long inner spine.Currently, the genus is comprised of only two species.
Key to species of Quiacaua (modified from Martins 1999)

Remarks
Eburodacrys White, 1853 is characterized by having a longitudinal sulcus at antennomere III (as in E. longilineata White, 1853, Fig. 3C).Quiacaua differs from Eburodacrys by the absence of the longitudinal sulcus.the study of the original description and the examination of many specimens of Eburodacrys vespertina allow me to propose the transfer of this species to the genus Quiacaua.
Last year I had the opportunity to visit the entomological Collection at the Institut royal des Sciences Naturelles de Belgique, and corroborated the existence of only two type-specimens of Volxemia dianella Lameere, 1884, with no holotype originally designated.In order to promote nomenclatural stability and facilite further identifications of this species, a lectotype and paralectotype are herein designated.

Geographical distribution
Brazil (Mato Grosso do Sul), Bolivia (Cochabamba, Santa Cruz), Paraguay.A new state record from Mato Grosso (Brazil) is added.

cheilaria (Martins, 1967)
grammica); elytra with black areas just surrounding the eburneous callosities, and without elytral costae visible between anterior and posterior callosities.Beraba hovorei sp.nov.differs from B. grammica in having the pronotal tubercles black (in B. grammica are of the same color than surface or pronotum) and by the external-posterior eburneous elytral callosities starting ahead the inner-posterior (in B. grammica the external posterior starts behind the inner posterior).

Martins & Galileo, 1999
Martins 1999)ified and translated fromMartins 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 ………………………………………………………………3Eburella migueli sp.nov. is similar to E. pinima in having the surface of pronotum with sparse, very fine and very shallow punctures (almost imperceptible).It differs in having lateral tubercles at the prothorax (absent in E. pinima) and in having the apex and spine of femora black (reddish-orange in E. pinima).Eburella migueli sp.nov.differs from the other species of Eburella in having two black spots on the pronotum.