Glyptoscapus pallidulus ( White, 1855 )

García, Kimberly, 2019, A new species of Gnomidolon Thomson, 1864 and taxonomic and geographical notes on Hexoplonini (Coleoptera, Cerambycidae) from Colombia, Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 59, pp. 1-7 : 2

Glyptoscapus pallidulus ( White, 1855) ( Figs. 1 A‑1B)

Material examined: COLOMBIA, Bolívar: San Jacinto (Reserva La Flecha, 324 m, 09°51’12.4”N, 75°10’41.4”W, tropical dry forest), 2 males, 15.IV.2018, García, K. col., Beating sheet ( UARC).

Remarks: Glyptoscapus pallidulus was initially described by White (1855) in the genus Ibidion , without mention the presence of a cicatrix in the apex of the scape ( Nascimento & Santos-Silva, 2018), a characteristic only present in two genera of Hexoplonini ( Glyptoscapus and Glyptoceridion Martins, 1959 ). Thirteen years lat- er, Lacordaire (1868) placed this species in Gnomidolon and then, Martins (1967) transferred it to Glyptoscapus , where is currently allocated. Recently, Nascimento & Santos-Silva (2018) synonymized Glyptoscapus vanettii (Martins, 1959) and G. cicatricosus (Aurivillius, 1899) with G. pallidulus , as they identified it is an extremely variable species. According to Nascimento & Santos-Silva (2018) the variable characteristics are: “the general coloration, color of the head and pronotum, length, ratio and shape of spines of meso- and metafemora, number of rows of the elytra setae, etc.”

Specimens of G. pallidulus from Colombia were examined and compared with several specimens from the MZSP,and other chromatic variations in this species were noticed, complementing the variability currently known. The Colombian specimens ( Fig. 1A ) have darker legs, femora brown (mainly meso- and metafemora) and tibiae dark brown (mainly meso- and metatibiae); also, antennomere III is dark brown at anterior half, darker than other specimens ( Fig. 1B ). Currently, the species is recorded from the department of Magdalena in Colombia, so the geographical distribution is expanded to the department of Bolívar.

Figures

Figure 1. (A-B) Glyptoscapus pallidulus (White, 1855): (A) dorsal view, male; (B) dorsal view female. (C-D) Gnomidolon bellus Martins & Galileo, 2002: (C) dorsal view,paratype male;(D) dorsalview,male.(E-H) Gnomidolon franciscoisp.nov.,holotype,female:(E) dorsalview;(F) ventral view;(G) lateral view;(H) frontal view.