A revision of the Neotropical genus Coptoborus Hopkins (Coleoptera, Curculionidae, Scolytinae, Xyleborini) Author Smith, Sarah M. https://orcid.org/0000-0002-5173-3736 Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA camptocerus@gmail.com Author Cognato, Anthony I. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA text ZooKeys 2021 2021-06-16 1044 609 720 http://dx.doi.org/10.3897/zookeys.144.62246 journal article http://dx.doi.org/10.3897/zookeys.144.62246 1313-2970-1044-609 66F01A49D32448A8AC2669BF3374894C C96ED07B505A52A8ADA354E1F70BB7C0 Coptoborus coartatus (Sampson, 1921) comb. nov. Figure 4G-I, O Xyleborus coartatus Sampson, 1921: 32. Theoborus coartatus (Sampson): Wood 1982 : 776. Xyleborus artecuneolus Schedl, 1939: 14: Synonymy: Wood 1966 : 31. Type material. Holotype Xyleborus coartatus (NHMUK), examined. New records. Ecuador: Los Rios Prov., Canton La Clementina, Samama Nature Reserve, 01°38.852'S , 79°19.867'W , 381-430 m, 13-15.v.2015, Cognato, Smith, Osborn, Martinez et al., sample EC 13, ex 4 cm diameter hanging liana (MSUC, 4; PUCE, 1); Napo Prov. [= Orellana Prov.], 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] 2, sta[tion] 1, Erwin lot #1810 (ICB, 1). Peru: Madre de Dios Dept., Los Amigos Biological Station, 12°34.9'S , 70°6.04'W , Smith, Hulcr, 26.iv.-2.v.2008, sample Peru 40b, 4 cm twig (MSUC, 3); as previous except: CM2, GPS 12.4492°S , 70.2517°W , Smith, Hulcr, 17-18.v.2008, sample Peru 88c 3 cm diameter branch (MSUC, 7). Diagnosis. 2.7-2.9 mm (mean = 2.82 mm; n = 5), 2.33-2.55 x as long as wide. This species is distinguished by the elytral apex broadly rounded and entire, posterolateral margin continuously and smoothly carinate to interstriae 6, extended posteriad and appearing shelf-like, and declivity moderately impressed along interstriae 2. Similar species. C. ricini . Distribution. Brazil (Bahia, Minas Gerais), Colombia (Cundinamarca, Tolima, Valle de Cauca), Costa Rica ( Limon , San Jose ), Ecuador* (Los Rios , Orellana), Mexico (Chiapas), Panama ( Chiriqui ), Peru (Madre de Dios), Trinidad. Biology. This species is known from Mimosa ( Fabaceae ), Theobroma cacao , and an unidentified Theobroma ( Malvaceae ) ( Wood and Bright 1992 ). Wood (1982) reported collecting the species from boles of small trees 8-20 cm in diameter but has been collected in smaller 3-4 cm diameter branches in Ecuador and Peru. It is considered a minor pest of Theobroma cacao ( Wood 2007 ). Remarks. Wood (2007) reports this species as introduced into Africa but published reports were not located. This erroneous record appears to be due to a reference to the species in the description of the African species Xyleborus ovatus Eggers (1932 : 298) in which Eggers compared the form of X. ovatus to that of the South American species X. coartatus but did not state that the latter species occurred in Africa.