Susuacanga Martins, 1997

Botero, Juan Pablo, 2014, Review of the genus Susuacanga (Coleoptera, Cerambycidae, Cerambycinae), Zootaxa 3779 (5), pp. 518-528 : 519

Susuacanga Martins, 1997

Susuacanga Martins, 1997: 60 ; 1999: 134; Monné, 2005: 171.

Type-species: Cerambyx octoguttatus Germar, 1821 (original designation).

Redescription. Frons short, transverse. Antennal tubercles well-elevated, separated by coronal suture and a deep longitudinally sulcus on each side of suture. Superior lobes of eyes well-separated, distance between them at least twice the width of the upper lobe. Tuberculate between upper lobes ( Fig. 1 ), sometimes the tubercle is barely elevated and divided by a suture; gula with transverse sulcus ( Fig. 3 ). Antennae filiform, inner face of scape, pedicel, and at least antennomere III–IV with long erect hairs.

Prothorax with two lateral projections, an antemedian tubercle and one medially (sometimes reduced to an acute spine). Surface of prothorax, in both sexes, with deep, thick punctures (as Fig. 1 ), except S. falli ( Fig. 7 ) and S. ulkei (Fig. 15), which have fine and shallow punctures or grooved with shallow rugosities. Pronotum with a transverse sulcus at anterior margin; a central elevation and two visible anterolateral tubercles. Mesosternal process lacking tubercle.

Elytra at least three times as long as broad, apices variable: unarmed, with an internal spine or with both margins spined. Apices of tibiae and femora spined or slightly projected.

Remarks. In the tribe Eburiini Blanchard, 1845 the presence of tubercle between the upper ocular lobes and the gula with a transverse sulcus is exclusive of the genera Susuacanga and Styliceps Lacordaire, 1869 . Susuacanga differs from Styliceps by the pronotal surface with thick, deep punctures, or finely rugose, by the anterior margin of pronotum with no more than one transverse sulcus, and by the mesosternal process without a tubercle. In Styliceps the pronotal surface is very rugose ( Fig. 2 ), the anterior margin of pronotum has two transverse sulcus ( Fig. 2 ) and the mesosternal process has a tubercle. Besides the characteristics shared with Styliceps , Susuacanga differs from Eburia by its deeply punctured pronotal surface which is never present in Eburia .

Figures

FIGURES 1 – 3. 1, Susuacanga octoguttata, detail of head and pronotum; 2, Styliceps striatum, detail of head and pronotum; 3, Susuacanga octoguttata, detail of gula. TSP: Transverse sulcus of pronotum.

FIGURES 4 – 12. 4 – 6, Susuacanga blancaneaui, holotype, male, 4, dorsal view, 5, detail of head, 6, detail of gula; 7, Susuacanga falli, male; 8, Susuacanga hatsueae, female; 9, Susuacanga maculicornis, male; 10, Susuacanga opaca, male; 11, Susuacanga patruelis, male; 12, Susuacanga poricollis, male.