Scolytodes venustulus Wood, 1967

Jordal, Bjarte H., 2018, Hidden gems in museum cabinets: new species and new distributional records of Scolytodes (Coleoptera: Scolytinae), Zootaxa 4504 (1), pp. 76-104 : 98

Scolytodes venustulus Wood

( Figs 64, 66, 68 )

Scolytodes venustulus Wood, 1967: 124 .

Material examined. Holotype, male: Panama, Volcan Chiriqui, 5500ft, I-14-1964, SL Wood, ex unknown sapling, [ USNM]. New record: Costa Rica, San Jose, Zurqui de Moravia , 1600m, viii-25-31-1998, FIT, C.W. & L.B.O’Brien [ FSCA].

Diagnosis. Interstriae 10 sharply elevated to level of ventrite 1; protibiae with a distinct additional mesal tooth near tarsal insertion. Elytral striae with punctures in longitudinal pairs, spatulate setae on uneven declivital interstriae only.

Description female. Length 1.6 mm, 2.4 × longer than wide; colour brown. Head. Eyes entire, separated above by 2.1 × their width. Frons convex on upper two-thirds, slightly impressed on median third of lower onethird, forming a triangular impression; surface reticulate on vertex, shiny below, with few scattered punctures; vestiture consisting of few short golden setae in impressed area, setae longer closer to epistoma. Antennal club with two obliquely procurved sutures marked by long white setae, club generally setose. Funiculus 6-segmented. Pronotum strongly reticulate, punctures spaced by 1¯2 × their diameter, very faint asperities near anterior margin. Vestiture consisting of 4 anterior erect setae (4–0–0). Elytra generally smooth and shiny, striae not impressed, punctures small, in longitudinal pairs, each pair separated in irregular rows by 1¯2 × the diameter of one puncture; interstriae 3 × wider than striae, punctures of same size as in striae, separated by 3¯4 × their diameter. Vestiture consisting of erect, slightly spatulate setae on mainly declivital interstriae 1, 3, 5 and 7, and much shorter, fine strial and interstrial setae. Legs. Procoxae separated by 0.5 × and mesocoxae 0.9 × the width of one procoxa. Protibiae relatively short, distal teeth 1 and 2 of equal length, with 3 tiny additional spines or granules along the edge towards base; protibial mucro thin, short and curved posteriorly. Meso- and metatibiae with 6 lateral, rather coarse, socketed teeth on distal half. Ventral vestiture. Setae on metasternum and metanepisternum simple.

Male. Frons less impressed, glabrous. The male holotype has slightly larger elytral punctures.

Biology and distribution. This species is known from the type locality at medium altitude in Panama (Chiriquí, 1800m), and in Costa Rica (Zurquí de Moravia, 1600m), presumably in cloud forest.

Figures

FIGURES 64–69. Dorsal, lateral and front view of females of Scolytodes venustulus (64, 66, 68), and S. pelicipennis (65, 67, 69).