Pentanodes tropipennis ( Chemsak, 1977 ) Heffern & Botero & Santos-Silva, 2020

Heffern, Daniel, Botero, Juan Pablo & Santos-Silva, Antonio, 2020, A new species of Neocompsa (Neoibidionini), and a new species and new combinations in Tillomorphini (Cerambycidae, Cerambycinae), Zootaxa 4748 (2), pp. 334-350 : 345

Pentanodes tropipennis ( Chemsak, 1977) , comb. nov.

( Figs. 41–51 )

Tetranodus tropipennis Chemsak, 1977: 124 ; Chemsak et al., 1992: 74 (cat.); Monné, 1993: 73 (cat.); Monné & Giesbert, 1994: 121 (checklist); Monné, 2005: 554 (cat.); Monné & Hovore, 2006: 133 (checklist); Swift et al., 2010: 30 (distr.); Martins & Galileo, 2013: 579 (distr.); Monné, 2019: 827 (cat.); Bezark, 2019b: 177 (checklist).

According to Chemsak (1977): “eyes large, pointed behind.” However, examination of the photographs of the holotype male shows that the upper eye lobes are absent. Accordingly, the species is transferred to Pentanodes . It is important to note that “pointed behind” is the description used by Chemsak to indicate the eye shape in the species of Tetranodus , in which the upper eye lobes are present and very distinct.

Chemsak (1977) also affirmed that “The acutely angulate basal gibbosities of the elytra will separate this species from the others.” This information was also used in the key to separate Tetranodus xanthocollis from T. tropipennis . However, comparison between photographs of both holotypes, as well as other specimens, shows that the basal elytral gibbosity is identical or nearly so in both species. However, the shape of the antennomere III in male is different: nearly pedunculate-clavate in T. tropipennis , and gradually widened from base to apex in T. xanthocollis .

The female examined by us ( Figs. 45–48 ) has the pronotum with abundant white pubescence on almost entire posterior half, and on a wide transverse band on anterior third. Furthermore, the sides of the prothorax also have distinct white pubescence on wide central area, connecting the two pubescent areas of the pronotum. We believe that this pubescence is just a specific variation. The last maxillary and labial palpomeres are slightly securiform (not strongly widened from base to apex). The antennomeres III–VI, as also in Tetranodus , are filiform. In the holotype and the couple examined by us, the antennomeres VII–VIII are mostly yellowish-brown, with only the apical area darkened (darker on the holotype and male examined).

Material examined. COSTA RICA, San José: San Isidro de El General , 1 male, II.1993, F.D. Parker col. ( MZSP) . Limón: 7 miles N Guácimo , 1 female, 22. II– 03. III .1988, F.D. Parker col. ( MZSP).

Figures

FIGURES 41–48. Pentanodes tropipennis: 41–44) Male: 41) Dorsal habitus; 42) Ventral habitus; 43) Lateral habitus; 44) Head, frontal view. 45–48) Female: 35) Ventral habitus; 46) Head, frontal view; 47) Dorsal habitus; 48) Lateral habitus.

FIGURES 49–51. Tetranodus tropipennis, holotype male: 49) Dorsal habitus; 50) Lateral habitus; 51) Ventral habitus.