Colobothea boliviana, Galileo & Martins & Tirant & Santos-Silva, 2014

Galileo, Maria Helena M., Martins, Ubirajara R., Tirant, Stéphane Le & Santos-Silva, Antonio, 2014, Five new species of Cerambycidae (Coleoptera) from Peru and Bolivia, and two new records for Peru, Insecta Mundi 2014 (376), pp. 1-13: 8-9

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Colobothea boliviana

sp. nov.

Colobothea boliviana   sp. nov.

( Figures 18–21 View Figures 14–25. 14–17 )

Description. Holotype. Integument black; scape, pedicel, basal half of antennomeres, peduncle of femora, basal half and apex of femoral club, middle of protibiae, and basal two-thirds of meso- and metatibiae dark-brown; central region of femoral club, basal and distal areas of protibiae, and distal third of meso- and metatibiae blackish.

Head. Pubescence on frons short, brown-yellowish; laterally with narrow yellowish band of pubescence from antennal tubercles to clypeus; around coronal suture, band of yellowish pubescence, distinctly more yellow from middle of inferior ocular lobes towards vertex. Vertex with two bands of yellow pubescence, divergent from base of superior ocular lobes to margin of prothorax; remaining surface with brownish pubescence. Area behind eyes with not dense, brown-yellowish pubescence, gradually more yellowish towards apex of inferior ocular lobes. Genae with brownish pubescence, slightly yellowish towards gulamentum. Genae, clypeus, labrum, and base of mandibles with thick, long, dark, sparse setae. Gulamentum with narrow, not dense band of short, yellowish pubescence at anterior margin. Distance between superior ocular lobes equal to 0.1 times length of scape; distance between inferior ocular lobes equal to 0.3 times length of scape. Antennae, from scape to apex of antennomere IX (antennomeres X–XI missing), as long as 2.3 times elytral length; reaching elytral apex at base of antennomere VI; pedicel and antennomeres III–IX with short, tick, black setae at underside, denser at pedicel and apex of antennomere III, gradually shorter, sparser towards last antennomeres; about basal half of antennomeres with whitish pubescence; antennal formula based on antennomere III: scape = 0.95; pedicel = 0.08; IV = 0.92; V = 0.78; VI = 0.67; VII = 0.63; VIII = 0.63; IX = 0.63.

Thorax. Pronotum with two semi-circular rows of deep, coarse punctures on base (punctures of most distant of base sparser); base with transverse sulcus, laterally deeper; disc with two wide bands of yellow pubescence, convergent from base to apex; on each side of those last bands, narrow, less conspicuous band of yellowish pubescence, parallel each other; laterally, wide band of yellow pubescence from base to apex; remaining surface with black pubescence. Sides of prothorax with wide band of black pubescence, close to yellow lateral band of pronotum; remaining surface with yellow-whitish pubescence. Prosternum with not dense, yellow-whitish pubescence. Metasternum with dense (mainly laterally), yellow pubescence. Scutellum with black pubescence. Elytra. Coarsely, moderately abundantly punctate, more distinctly aligned in rows towards apex; apex emarginate, with long spine at outer angle, rounded projection at sutural angle. Elytral pubescence yellow-grayish, except: triangular area with black pubescence under and close to the scutellum; short area with yellowish pubescence under and close to the scutellum, between black triangular areas; semi-circular, large spot with black pubescence, placed near end of basal third, surrounded at inner side by band of yellowish pubescence; semi-elliptical, large spot of black pubescence, placed near end of middle third; at distal fourth, two irregular areas with black pubescence separated by yellow pubescence; this latter yellow pubescence enlarged towards apex, covering part of outer spine and rounded sutural projection.

Abdomen. Central region of urosternites I–IV with yellow-whitish, not dense pubescence, followed laterally by wide, dense band of yellow pubescence (not reaching base of urosternite I); laterally, on basal half of urosternites II–IV, semi-circle with black pubescence; urosternite V with brownish, slightly conspicuous pubescence, except small spot of yellow pubescence on each side of basal center.

Legs. Femora with brown-yellowish pubescence; tibiae with brown-yellowish pubescence on basal half, black pubescence on distal half; metatarsomere I about 1.4 times as long as II–III together.

Variability. Paratype male: between middle and distal spots of black pubescence on elytra, some fine lines of yellow pubescence.

Dimensions in mm (male). Total length, 10.1–12.4; length of prothorax at center, 1.9–2.3; anterior width of prothorax, 2.1–2.3; posterior width of prothorax, 2.5–3.0; humeral width, 3.2–3.8; elytral length, 7.3–8.9. The smallest dimensions are those of the holotype.

Type material. Holotype ( MZSP) and paratype ( IMCQ) males from BOLIVIA, La Paz Department: Caranavi (1300 m), 1-25.XII.2007, local collector.  

Etymology. The name refers to the country of the type locality of the species.

Remarks. Colobothea boliviana   differs from C. declivis   by the following characters: elytra without longitudinal yellow band of pubescence from base to first dark spot (present in C. declivis   ); area at side of middle elytral dark spot without another spot (present in C. declivis   ); central spot not as two elliptical fused spots (more or less so in C. declivis   ); dark spots on elytral fourth slender, without wide band of yellow pubescence close to its anterior side (respectively wider and present in C. declivis   ); area after distal dark spots of elytra with distinct macula of yellow pubescence (absent in C. declivis   ). It differs from C. wappesi   mainly by the presence of two longitudinal, wide bands of yellow pubescence on middle of pronotum (absent in C. wappesi   ) and by the absence of yellow macula between basal and middle spots of elytra (present in C. wappesi   ). It can be separated from C. dostalbergeri   by the absence of wide band with yellow pubescence from lateral to middle dark spot of elytra (present in C. dostalbergeri   ). See remarks on C. larriveei   .


Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo