Coleoxestia glabripennis ( Bates, 1870 )

Galileo, Maria Helena M. & Santos-Silva, Antonio, 2016, New taxa, new records and notes on Coleoxestia Aurivillius, 1912 (Coleoptera, Cerambycidae, Cerambycinae), Zootaxa 4136 (1) : -

Coleoxestia glabripennis ( Bates, 1870)

( Figs. 8–10 )

Xestia glabripennis Bates, 1870: 256 ; Gemminger & Harold, 1872: 2807 (cat.).

Coleoxestia glabripennis ; Aurivillius, 1912: 64 (cat.); Blackwelder, 1946: 561 (checklist); Zajciw, 1972: 50 (distr.); Fragoso, 1982: 143 (distr.); Monné, 1993: 16 (cat.); Monné & Giesbert, 1994: 35 (checklist); Monné, 2005: 62 (cat.); Martins & Monné, 2005: 159, fig. 287; Monné & Hovore, 2005: 38 (checklist); 2006: 37 (checklist); Martins & Galileo, 2006: 269 (distr.); Wappes et al., 2006: 8 (distr.); Martins et al., 2015: 601; Monné, 2016: 96 (cat.).

Remarks. According to Bates (1870) (translated): “Elytra yellow-chestnut, scarcely punctate, glabrous, apex bispinose.” Martins & Monné (2005) reported (translated): “If the overall color of C. glabripennis is variable, we can consider as correct our identification. The holotype, whose slide we examined, has overall reddish color; a female from Amapá (MZSP) is reddish-black (except the head) and another female from Pará (MPEG) is entirely black.” The female from MZSP ( Fig. 10 ) commented on by Martins & Monné (2005) is dorsally dark brown (almost black). However, it is possible to see that there are two very slightly distinct reddish areas (invisible depending on angle of light): one about center of anterior half; another on posterior half. Another female of MZSP collection ( Brazil, Pará) has the distal third of the elytra distinctly dark reddish, with head, pronotum and remaining surface of elytra dark brown.

We examined four specimens from Bolivia that have the head and pronotum reddish. The elytra in these specimens is mostly reddish, but with sides and anterior half along suture distinctly dark brown (the latter almost absent in one specimen). In two of these specimens the lateral dark bands and the sutural band are fused just before middle by wide, transverse, dark brown band ( Fig. 9 ). In other two specimens, the transverse band is incomplete ( Fig. 8 ).

There are no morphological differences that allow separating all these specimens (including the holotype). Thus, we agree to Martins & Monné (2005) on the variation of the color in C. glabripennis .

Fragoso (1993) described C. olivieri from French Guiana, a species very similar in general appearance to C. glabripennis . Curiously, he did not compare both species. According to Martins & Monné (2005), C. olivieri ( Fig. 11 ) has the mesosternum tuberculate. However, according to the original description, the mesosternal process is very variable in C. olivieri : mesosternal tubercle from very distinct to absent. From what we can see, the better differences are the upper eye lobes less separated, at least in females, and the femora distinctly clavate in C. glabripennis (upper eye lobes more separated, at least in females, and femora fusiform in C. olivieri ).

Currently, C. glabripennis is recorded from Bolivia and Brazil (Amapá, Pará). However, Zajciw (1972) recorded C. glabripennis for the Brazilian state of Rio de Janeiro. It is possible that this record was a mistake, but this state was never formally excluded as a place where C. glabripennis occurs. Thus, we think it is not correct ignore the record.

We examined two males from Peru (new country record). The general color of one of these specimens is very similar to that in the holotype female, while the other is distinctly darker. One of the males from Peru has the mesosternal process without tubercle. Thus, as reported by Fragoso (1993) for C. olivieri , this feature is also variable in C. glabripennis (mesosternal process with or without tubercle). The single female from French Guiana has the elytra almost entirely black.

Material examined. BOLIVIA, Santa Cruz: 3.7 km SSE Buena Vista (Hotel Flora & Fauna, 430 m), 2 males, 1 female, 15–22.XI.2001, B. K. Dozier col. ( ACMT); Hotel Flora & Fauna, 1 male, 1 female, 14–20.XI.2008, Galileo, Vanin & Martins col. ( MZSP); 1 female, 21–25.X.2003, Morris, Nearns & Wappes col. ( RFMC); 1 male, 22–25.XI.2013, Wappes & Skillman col. ( ACMT); 1 male, 23.XI.2013, Skillman & Wappes col. ( FWSC); 3 males, 13.XII.2015, Skillman, Wappes & Kuckartz col. (2 FWSC, 1 MZSP); 1 male, 26–27.X.2014, Wappes col. ( ACMT); Potrerillo del Guendá (17º40.26’S / 63º27.44’W), 1 female, 5–20.XI.2004, B. K. Dozier col. ( ACMT); Reserva Nat. Potrerillo del Guendá (Snake farm, 17º40.26’S / 63º27.43’W, 400 meters), 1 female, 16–22.X.2006, Wappes, Nearns & Eya col. ( ACMT). BRAZIL, Pará: Santo Antonio do Tauá, 1 female, 19.X.1993, Jauffret col. ( MZSP); 1 female, 17.XII.1993, Jauffret col. ( MZSP). PERU, San Martin: Tarapoto (vic. Cordillera Escalera Lodge; 432 m; 06º28’08.1”S / 76º21’16.4”W), 1 male, 11–13.X.2012, J. E. Eger col. ( RFMC); Escalera Lodge (Tarapoto, 435 m), 1 male, 9–12.X.2012, J. B. Hepner col. ( FSCA). FRENCH GUIANA, 14 km E N2 on rd. to Dégrad Corrèze, 1 female, 6.XII.2002, J. E. Eger col. ( RFMC).

Figures

FIGURES 8 – 14. 8 – 10, Coleoxestia glabripennis, chromatic variation, dorsal habitus: 8, male; 9 – 10, female. 11, Coleoxestia olivieri, female, dorsal habitus. 12, Coleoxestia spinipennis spinipennis, male, dorsal habitus. 13 – 14, Coleoxestia nitida, male: 13, dorsal habitus; 14, prothorax with lateral spine.