Coptoborus pseudotenuis (Schedl, 1936) Smith & Cognato, 2021

Smith, Sarah M. & Cognato, Anthony I., 2021, A revision of the Neotropical genus Coptoborus Hopkins (Coleoptera, Curculionidae, Scolytinae, Xyleborini), ZooKeys 1044, pp. 609-720 : 609

Coptoborus pseudotenuis (Schedl, 1936) comb. nov. Figure 13G-I, O

Xyleborus pseudotenuis Schedl, 1936: 109.

Coptoborus pseudotenuis (Schedl): Wood 1982: 802.

Xyleborus pseudotenuis Schedl: Bright 2019: 297.

Xyleborus tenuis Schedl, 1948: 269: Synonymy: Wood 1976: 349.

Type material.

Holotype Xyleborus pseudotenuis (NHMW), examined. Holotype Xyleborus tenuis (NHMW), examined.

New records.

Ecuador: Napo Prov. [= Orellana Prov.], Res[erva]. Ethnica Waorani, 1 km S. Okone Gare Camp, Trans[ect]. Ent[omology]., 00°39'10"S, 076°26'W, 220 m, July 1995, T.L. Erwin et al. collectors, insecticidal fogging, terra firme forest, trans[ect] 10, sta[tion] 10, Erwin lot #1130 (NMNH, 1); as previous except: trans[ect] 4, sta[tion] 3, Erwin lot #1093 (ICB, 1); as previous except: October 1995, trans[ect] 4, sta[tion] 4, Erwin lot #1204 (NMNH, 1); as previous except: trans[ect] 5, sta[tion] 6, Erwin lot #1216, (ICB, 1); as previous except: trans[ect] 8, sta[tion] 6, Erwin lot #1245 (ICB, 1); except: July.1996, trans[ect] 4, sta[tion] 3, Erwin lot #1553 (NMNH, 1); as previous except: Tiputini Biodiversity Station, 00°37'55"S, 076°08'39"W, 220-250 m, June. 1998, T.L. Erwin et al. collectors, insecticidal fogging, terra firme forest, trans[ect] 8, sta[tion] 9, Erwin lot #1878 (NMNH, 1); as previous except: October 1998, trans[ect] 9, sta[tion] 5, Erwin lot #1984 (ICB, 1). Peru: Madre de Dios Dept., Los Amigos Biological Station, 12°34.9S, 70°6.04W, Smith, Hulcr, 26.iv.-27.v.2008, sample Peru 14, Cecropia sp. trunk (MSUC, 4; MUSM, 2).

Diagnosis.

1.9-2.1 mm (mean = 2.0 mm; n = 5), 3.0-3.33 × as long as wide. This species is distinguished by the elytral apex attenuate and weakly emarginate, declivital interstriae 2 denticulate along the entire length, denticles on declivital interstriae 1 and 3 subequal, posterolateral margin of declivity with interstriae 3 and 9 joining, forming a carina and continuing submarginally to apex, declivital interstriae distinctly impressed, and anterior margin of pronotum without a row of serrations.

Similar species.

C. artetenuis , C. exilis .

Distribution.

Colombia (Valle de Cauca), Costa Rica ( Limón), Dominica, Ecuador* (Orellana), Grenada, Guadeloupe, Martinique, Mexico (Campeche, San Luis Potosí, Tabasco, Veracruz), Panama ( Panamá), Peru (Loreto, Madre de Dios), Saint Lucia, Saint Vincent and the Grenadines, Trinidad, United States (Florida), Venezuela (Aragua, Mérida).

Biology.

This species is polyphagous and has been collected from Cordia ( Cordiaceae ), Hevea brasiliensis ( Euphorbiaceae ), Acacia ( Fabaceae ), Heliocarpus appendiculatus , Theobroma cacao ( Malvaceae ), Coffea ( Rubiaceae ), Cestrum ( Solanaceae ), Cecropia ( Urticaceae ) ( Wood and Bright 1992; Bright and Skidmore 1997; Wood 2007). Wood (2007) reported collecting the species from limbs and a log 5-20 cm in diameter. Specimens were also collected by canopy fogging.

Remarks.

Bright (2019) placed this species back in Xyleborus without discussion. This species clearly beongs in Coptoborus and shares the characters outlined in the generic diagnosis and has been shown to be correctly placed in Coptoborus , rather than Xyleborus in several molecular phylogenetic studies (e.g. Cognato et al. 2011; Gohli et al. 2017; Cognato et al. 2018).

Figures

Figure 13. Dorsal, lateral, frontal and declivital view of Coptoborus pilisoror holotype, 1.8 mm (A-C, M), C. pristis, 1.6 - 2.1 mm (D-F, N), C. pseudotenuis, 1.9 - 2.1 mm (G-I, O), C. puertoricensis, 2.2 - 2.4 mm (J-L, P). All photographs by SMS.