Scolytodes profundus Jordal & Kirkendall

Jordal, Bjarte H. & Kirkendall, Lawrence R., 2019, Rainforest and cloud forest Scolytodes (Curculionidae, Scolytinae, Hexacolini) from the Arthropods of La Selva inventory in Costa Rica: new species, new synonymy, new records, ZooKeys 863, pp. 1-34 : 1

Scolytodes profundus Jordal & Kirkendall sp. nov. Figs 21, 24, 27

Type material.

Holotype, female: Costa Rica, Guanacaste, Guanacaste cons. Area, Rincon de La Vieja, Las Pailas, 1650 m, 19.II.1996-021A, R. Anderson, windblown cloud forest ridge litter. Allotype, male: same data as holotype. Paratypes: Alajuela, PN Volcan Poas, 2500 m, 10°11'30"N, 84°14'W, 6.VI.1997, R. Anderson, wet cloud for. litter, 97-003 (4); wet mount. for. FIT 6-28.VI.97, S. & J. Peck, 97-16 (1); Hered. Prov, Cerro Chompipe, 2100 m 10km NNE Heredia, 12-27.VI.97, mont. for. FIT, S. & J. Peck, 97-21 (1); Prov. Heredia, 6 km ENE Vara Blanca, 1950-2050 m, 10°11'N, 84°07'W, 16 Mar. 2002, INBio-OET-ALAS transect, 20/WF/03/43, INB0003223948 (1); holotype, allotype and 1 paratype in FSCA, 2 paratypes in USNM, 2 paratypes in ZMBN, 2 paratypes in MNCR.

Diagnosis.

Interstriae 10 sharply carinate to near apex; protibiae with a tiny, additional mesal tooth at the base of lateral tooth 2. Distinguished from S. seriatus by the more elongated shape and narrowly rounded apex of the elytra, by the reticulate pronotum that is constricted on basal one-fourth, and the different female frons.

Description female.

Length 2.0-2.2 mm, 2.2-2.4 × as long as wide; color black. Head. Eyes entire, separated above by 3.3-3.6 × their width. Frons impressed on a semi-circular area from just below upper level of eyes to epistoma, surface densely punctured, except for a longitudinal median impunctate shiny glabrous band; vestiture consisting of fine short setae in punctured part of impressed area. Antennal club with two obliquely procurved sutures marked by short white setae, segment 1 and 2 mainly corneous, segment 3 setose. Funiculus 6-segmented. Pronotum slightly constricted laterally on basal on-fourth, surface smooth, reticulate, with fine punctures spaced by 2-3 × their diameter. Vestiture consisting of six erect long setae (4 –2– 0). Elytra smooth, shiny, striae distinctly impressed, punctures spaced by 2-3 × their diameter; punctures in interstriae confused, smaller and more widely spaced, intermixed with strial punctures. Interstriae 10 sharply carinate to near apex. Vestiture consisting of erect long acuminate setae on interstriae 3, 5, 7 and 9 only. Legs. Procoxae separated by 0.6 × and mesocoxae 0.9 × the width of one procoxa. Protibiae narrow, lateral teeth 1 and 2 sub-equal in length, with 5 small granules along the lateral edge towards base; a tiny, additional mesal tooth present at the base of lateral tooth 2; protibial mucro obtuse. Meso- and metatibiae with 6 small socketed lateral teeth on distal half and distal third, respectively. Ventral vestiture. Setae on metanepisternum bifid, on metasternum long and simple; sclerolepidia small rounded scales.

Male.

Similar to female, except frons convex, with distinct abrupt impression on epistoma; eyes separated above by 3.9-4.1 × the width of eye; vestiture of frons consisting of a few short setae.

Key

( Wood 1982). Keys to couplet 6 but does not match (long interstriae 10, presence of mesal protibial tooth). The same applies to S. clusiacolens and S. seriatus , presumably the closest relatives.

Etymology.

The Latin name profundus is a masculine adjective, meaning deep or profound, referring to the deeply impressed striae comprising relatively small but densely placed punctures.

Biology and distribution.

This species is known from several upper cloud forest localities in Costa Rica. One specimen was reared from sifted litter samples (miniWinkler method).