Erythropterus boliviensis, Clarke, 2007

Clarke, Robin O. S., 2007, New Species Of Rhinotragini And Heteropsini And A Note On Trachelissa Maculicollis (Trachyderini) (Coleoptera, Cerambycidae, Cerambycinae), Papéis Avulsos de Zoologia 47 (11), pp. 153-158 : 155-156

Erythropterus boliviensis sp. nov.

( Figs. 3, 4 )

Male: Head, prothorax, scutellum and basal two-thirds of elytra crimson; apical third of elytra, ventrad, antennae and legs black.

Front elongate, closely punctured, punctures with short setose pubescence (40x). Genae half as long as inferior lobes of eyes. Antennae surpass apex of elytra by 1,5 segments. Scape cylindrical, densely punctured, 1/4 shorter than III, 1/5 longer than IV, shorter than V. Antennomeres III-V shining and bicarinate, almost impunctate between the carinae, the rest with shallow elongate punctures. Antennomere III more than half as long again as IV and slightly longer than V-XI; V-X expanded at apical angle.

Prothorax slightly transverse, regularly rounded at sides, widest behind middle, front margin slightly narrower than hind margin. Pronotum closely and shallowly punctured at sides and front of disc, irregularly and less densely punctured at base of disc, punctures alveolate and often confluent. Prosternum almost glabrous, pubescence only distinct on intercoxal process, irregularly and coarsely punctured. Mesosternum, metasternum and urosternites densely and finely pubescent and punctured, metasternum and urosternites with scattered larger punctures, those on urosternites indistinct.

Elytra entirely covering abdomen, moderately convex to apex, humeral projection rounded, apices somewhat acuminate, tips slightly sinuate at apex, sutural angle rounded, not toothed, outer angle furnished with small conical tooth, much longer and peg-like in some examples; densely punctate, asperate for apical third; undersurface with two pale vittae running from base to black band. Epipleura not reflexed, weakly sinuous behind humeri and covering metepisternum. Scutellum slightly acuminate, glabrous, impunctate.

Femora with dense, shallow, alveolate punctures, microsculptured. Meso- and metafemora slender and weakly clavate, peduncles strongly carinate; metafemora surpassing apex of elytra. Metatibia finely carinate on internal and external sides. Metatarsus elongate, tarsomere I equal in length to the following combined.

Female: Antennae shorter, reaching apical third of elytra (middle of third urosternite).

Measurements (mm), male/female respectively: total length 8,3-10,7/9,7-11,3; length of pronotum 1,4-1,9/1,6-1,9; maximum width of pronotum 1,5-2,0/1,6-2,1; length of elytra 5,4-7,1/6,5-7,7; width at humeri 1,7-2,2/1,9-2,4.

Type material: Holotype male, BOLIVIA, Santa Cruz : Hotel Flora & Fauna , 5 km SSE Buena Vista, 17°29’96”S/63°39’13”W, 440 m, 5.V.2005, R. Clarke / S. Zamalloa col., flying to/on flowers of “Bejuco Hoja Lanuda” ( MNKM). Paratypes with same data as holotype, 1 male 29.IV.2007 ( DZUP); 1 male 10.V.2005 ( MCNZ), 1 male 10.V.2005, 1 female 2.V.2007 ( MNRJ); 1 male 11.V.2005, 1 female 19.IV.2007 ( MZSP), 1 male 29.IV.2005, 1 female 11.V.2005 ( RCSZ).

Discussion: In the key to the species of Erythropterus given by Napp and Monné (2005) the opening option separates E. cuissi from the other species: “Antennae of males longer than body”. The antennae of male E. boliviensis are also longer than the body and it shares other characters with E. cuissi that clearly separate these two species from E. amabilis and E. urucuri as follows: i) sides of the prothorax are rounded and maximum width is closer to middle, ii) elytral epipleura completely cover metepisterna, iii) meso- and metafemora with slender claves, and iv) metafemora surpass apex of elytra (a character shared with E. kochi sp. nov.). Although apparently related to one another E. boliviensis displays characters clearly separating it from E. cuissi , as follows: elytra subconvex and completely cover abdomen and external apical tooth usually well developed, even peg-like in some specimens; antennomere III longer than XI, meso- and metafemora both densely and strongly punctured with carinate peduncles; and colour distribution is different: head and prothorax crimson, not black; black band at apex of elytra begins just in front of apical third, in E. cuissi it falls entirely within apical quarter.

Figures

FIGURAS 1-8: 1-2. Neoregostoma giesberti sp. nov., paratypes, 1. male, 2. female; 3-4. Erythropterus boliviensis sp. nov., paratypes, 3. male, 4. female; 5-6. Erythropterus kochi sp. nov., paratypes, 5. male, 6. female, 7-8. Trachelissa maculicollis (Audinet-Serville, 1834), 7. normal form, 8. melanic form.