Hypothenemus cordeiroi Atkinson and Flechtmann, 2021

Atkinson, Thomas H. & Flechtmann, Carlos A. H., 2021, New species, new records and synonymy of Brazilian species of Hypothenemus Westwood, 1834 (Coleoptera: Curculionidae: Scolytinae), Insecta Mundi 2021 (846), pp. 1-33 : 16-18

Hypothenemus cordeiroi Atkinson and Flechtmann , new species

Fig. 10

Diagnosis. This species would key out to couplet 15 in Wood’s 2007 key. At that point neither alternative is appropriate. Distinctive characters include the dense, short scale-like setae of the declivity that are wider than long, consisting of longer, erect setae and rows of smaller, semi-erect scale-like setae on either side of the erect setae.

Female. Total length: 1.38 mm (1.37–1.45), maximum width: 0.61 mm (0.60–0.63), length of elytra: 0.89 mm (0.85–0.97), total length / width: 2.27, elytra length / total length: 0.64, pronotal length / width: 0.81 (n = 7).

Frons convex, without concavities, impressions or elevations, surface shining, finely reticulate, with sparse hair-like setae. Antenna with four segments in flagellum (plus pedicel); club oval with clearly marked sutures, narrower than width of compound eye.

Anterior margin of pronotum with four teeth, the middle two slightly larger. Anterior slope with numerous asperities (>25), surface reticulate, vestiture of hair-like setae. Summit not elevated or prominent, at or anterior to middle of pronotum. Surface of disc reticulate, vestiture of short, truncate scale-like setae and finer hair-like setae.

Basal portion of discal striae and interstriae reticulate; interstriae in the central portion smooth, shining, becoming reticulate towards declivity. Interstriae 2–3× width of striae, erect setae scale-like, short, truncate at apex. Length less than ½ distance between rows. Striae not impressed, punctures large, shallow, strial setae not evident.

Declivity flattened. Strial punctures smaller than on disc; interstrial scale-like setae more abundant, wider than on disc, smaller semi-erect scale-like setae present in rows to either side of the erect setae. Interstriae 7–9 strongly elevated posteriorly, interstriae 9 joining interstriae 3 and not reaching suture. Recumbent, fine, hair-like setae associated with strial punctures.

Male. Unknown.

Type material. Holotype female: Brazil: Paraná: Telêmaco Borba, Klabin Papel e Celulosa, hybrid of Pinus taeda x Pinus elliottii stand planted Mar.1998, 24°26′22.72″S 50°28′38.30″W, ethanol-baited flight intercept trap, 13-VIII-2004, C.A.H. Flechtmann ( MEFEIS).

Paratypes: Amapá: Tartarugalzinho, Comunidade Entre Rios, terra firme ombrophilous forest fragment, 1°7′32.70″N 51°18′34.20″W, ethanol-baited flight intercept trap, 1-XII-2014, W.R. Silva ( MEFEIS, 1). Paraná: Telêmaco Borba, Klabin Papel e Celulosa same data as holotype, dates 1998-2007 ( MEFEIS, 5, UTIC, 5). Mato Grosso do Sul: Três Lagoas, FIBRIA, Horto Barra do Moeda, cerradão fragment, 20°58′57.837″S 51°46′8.181″W, ethanol-baited flight intercept trap, 9-I-2017, J.E.P. Mendes ( MEFEIS, 1).

Etymology. This species is named for Luiz Cordeiro, head of the Forest Protection Sector at the forest company Klabin, and his staff, in Telêmaco Borba, state of Paraná, Brazil, and the person responsible for the establishment of several trapping experiments there over the years, which also resulted in the trapping of this new species.

view. C) Frontal view. D) Posterolateral view. Photos by T.H. Atkinson.

Figures

Figure 10. Hypothenemus cordeiroi new species, female holotype. A) Dorsal view. B) Lateral