Adetus mirabilis Martins, Galileo, and Santos-Silva

Martins, Ubirajara R., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2015, Three New Species of Lamiinae (Coleoptera: Cerambycidae), The Coleopterists Bulletin 69 (3), pp. 395-401 : 395-397

Apomecynini Adetus mirabilis Martins, Galileo, and Santos-Silva , new species

( Figs. 1–3 )

Description. Integument dark brown, almost black; palpi and part of gula reddish brown. Head: 4–5) Euryestola skillmani , holotype male: 4) Dorsal habitus; 5) Ventral habitus.

Frons distinctly transverse; abundantly coarsely punctate (punctures partially obliterated by pubescence); almost glabrous on subtriangular area on each side from clypeus to about level of antennal tubercles; remaining surface with dense, brownish yellow pubescence, mixed with whitish pubescence. Antennal tubercles mostly glabrous on frontal area, with dense, brownish yellow pubescence on remainder of surface. Punctation on vertex as on frons, obliterated by pubescence; with brownish yellow pubescence, slightly denser than on frons, except for 4 small almost glabrous areas close to prothorax: 2 at center and 2 about level of upper eye lobes. Area behind eyes with dense, yellowish pubescence (behind lower eye lobes, forming wide band close to eyes, glabrous towards prothorax), but exposing individual punctures. Gena with wide, subtriangular band of yellowish pubescence from lower eye lobes to submentum, almost glabrous towards clypeus. Eyes small, surrounded by narrow, dense band of yellowish pubescence; connection between upper and lower lobes with a single row of ommatidia; distance between upper eye lobes equal to 1.65 times length of scape; distance between lower eye lobes, in frontal view, equal to 2.00 times length of scape; lower eye lobes 0.65 times length of gena. Antenna 0.75 times elytral length; nearly reaching apex of basal third of elytra; scape, pedicel and antennomere III with yellowish pubescence dorsally and whitish pubescence ventrally; remaining antennomeres with whitish pubescence, slightly denser on base and apex; antennomere length ratios based on antennomere III: scape = 0.57; pedicel = 0.14; IV = 0.59; V = 0.37; VI = 0.32; VII = 0.28; VIII = 0.28; IX = 0.26; X = 0.26; XI = 0.26. Thorax: Prothorax as long as wide. Pronotum with transverse sulcus at basal third, deeper centrally and laterally; another transverse sulcus at anterior third, more conspicuous than basal one; area between sulci convex; surface moderately abundantly, coarsely punctate (punctures obliterated by pubescence); pubescence dense (mainly on basal third and wide central band that reaches base), mostly brownish yellow, except for an oblique, wide, whitish band on each side of middle. Lateral sides of prothorax with dense, yellowish pubescence on anterior third; wide, moderately dense, whitish pubescent band on middle third; brownish yellow, moderately dense, brownish yellow pubescent band on basal third. Prosternum and prosternal process with moderately dense, yellowish white pubescence. Meso- and metasterna with yellowish white pubescence (more whitish depending on angle of light source). Scutellum with dense, yellowish pubescence. Elytra: Each elytron with gibbosity at basal sixth; densely, moderately shallowly, coarsely punctate throughout; basal sixth with transverse, dense, brownish yellow pubescent band, posteriorly sinuous and surrounded by whitish yellow pubescence (this latter also forming narrow longitudinal band on area with brownish yellow pubescence); wide, transverse, dense, brownish yellow pubescent band just behind middle, mixed with whitish yellow pubescence, band not reaching suture and outer margin; immediately posterior to latter, moderately dense, whitish pubescent band that reaches outer margin and follows along suture to near apex; apically with yellowish brown, pubescent macula outwardly surrounded with yellowish brown pubescence; remaining elytral surface with sparse, whitish pubescence; apices narrowly rounded. Abdomen: Urosternites I–IV with moderately dense, yellowish pubescence laterally; with moderately sparse whitish yellow pubescence centrally (this area narrower from I to IV); distal margin of urosternites I–IV with dense, brownish yellow pubescent fringe. Urosternite V with V-like, deep depression centrally; pubescence brownish yellow laterally and whitish yellow centrally. Legs. Femur with peduncle and most of ventral side whitish yellow pubescent; remaining surface with brownish yellow pubescence. Tibia with brownish yellow and brownish pubescent maculae.

Type Material. Holotype female ( Figs. 1–3 ) from BOLIVIA, Santa Cruz: Province of Andrés Ibañez (“Jardim Botânico”; “bosque tropical”; 21 to 23hs), 26–27.XI.2010, J. L. Castro, M. Perez, and C. Iquise col. ( MNKM) . Paratype female from BOLIVIA, Santa Cruz: 20 km N Cameri (Road to Eyti ; 1250 m; 6–8 km E Highway 9; 19°52′S / 63°29′W), 26.XI.2013, Skillman & Wappes col. ( ACMT) .

Dimensions (in mm). Female. Total length 9.70–10.3; prothoracic length at center 2.30–2.40; prothoracic anterior width 2.30–2.40; prothoracic posterior width 2.30–2.40; maximum prothoracic width 2.40–2.45; humeral width 3.10–3.35; elytral length 7.10–7.75. The smallest dimensions are those of the holotype.

Etymology. Latin, mirabilis = wonderful, marvelous.

Remarks. Adetus mirabilis differs from Adetus marmoratus Breuning, 1942 as follows: lower eye lobes 0.65 times length of gena; pubescence on pronotum not forming longitudinal bands; and central area of elytra lacking transverse pubescent bands. In A. marmoratus , the lower eye lobes are twice the length of the gena, the pubescence on the pronotum forms longitudinal bands, and there are distinct transverse bands on the central area of elytra. It differs from Adetus multifasciatus Martins and Galileo, 2003 by the pronotal integument totally dark brown (in A. multifasciatus , reddish with large central black area) and the basal half of the elytra without narrow, transverse bands of pubescence (present in A. multifasciatus ). Adetus mirabilis can be separated from Adetus fasciatus Franz, 1959 by the wide, distinct transverse band of brownish yellow pubescence at the base of the elytra (absent in A. fasciatus ) and by the wide, sparsely pubescent area on the elytra (not present in A. fasciatus ).

Figures

Figs. 1–5. 1–3). Adetus mirabilis, holotype female: 1) Dorsal habitus; 2) Ventral habitus; 3) Lateral habitus.