Tropidion boliviensis Galileo and Martins, 2010

Galileo, Maria Helena M. & Martins, Ubirajara R., 2010, New species of Cerambycinae (Coleoptera, Cerambycidae) from South America, Insecta Mundi 2010 (115), pp. 1-9 : 5-7

Tropidion boliviensis Galileo and Martins , new species

( Figure 5 )

Description. Head black, densely pubescent. Upper ocular lobes with three rows of ommatidia. Vertex punctate between the antennal tubercles and upper ocular lobes. Antennae (female) reach elytral apices approximately at the tip of antennomere VII. Scape reddish-black, finely punctuate, pyriform, grooved at base.

Prothorax black and reddish at the base. Pronotum densely pubescent, except at the anterior onefourth portion (where the pubescence is very sparse) and on the central tubercle. Five pronotal tubercles slightly apparent on a dorsal view, with the exception of the central tubercle, more visible through a side view. Prothorax sides pubescent, anterior margin shining. Prosternum with “V-shaped” pubescence at the posterior half. Mesosternum and metasternum reddish, covered by a whitish pubescence.

Elytra ( Figure 5 ) with a reddish anterior half and black apical half; each having a whitish, oblique, dorsal spot on the anterior half and an oblique band between the dominant colours; this band turns forward near the margin, through a short prolongation. Rough punctures near the scutellum and along the suture. The reddish portion of the elytra is also punctate. Each elytron with five longitudinal rows of hairs. Elytral apices with an external long spine.

Femora reddish. Tips of metafemora slightly projecting. Tibiae and tarsi black. Urosternite I reddish; II to V black.

Measurements in mm. Total length, 11.4; prothorax length, 2.6; largest prothoracic width, 1.9; elytra length, 7.8; humeral width, 2.5.

Type material. Female holotype, BOLIVIA, Santa Cruz: Buena Vista (Hotel Flora and Fauna, 4,6 km SSE) 22-25.X.2007, Galileo and Martins col. ( MNKM).

Etymology. The epithet is a Latin adjective referring to the native country ( Bolivia).

Diagnosis. Tropidion boliviensis sp. nov. is similar to Tropidion fairmairei (Gounelle, 1909) by the coloring pattern and dense pronotum pubescence. It differs through its upper ocular lobes, with three rows of ommatidia, pronotum glabrous near the anterior margin, with a pronounced and glabrous centroposterior tubercle, elytra with rough punctures and its anterior spot on the elytra, which prolongs towards the margin without reaching it.

In T. fairmairei , the superior ocular lobes present four rows of ommatidia, the pronotum is pubescent on the sides of the anterior one-third, the central tubercle is barely projecting, the elytra do not present rough punctures and the anterior elytra spot is rounded.

Figures

Figure 1-5. Habitus. 1) Gorybia rondonia, female holotype, length 11.8 mm. 2) Gorybia bahiensis, female holotype, length 6.4 mm. 3) Calycibidion rubricolle, male holotype, length 7.9 mm. 4) Tropidion argentina, male holotype, length 10.6 mm. 5) Tropidion boliviensis, female holotype, length 11.4 mm.