Scolytodes fimbriatus 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 fimbriatus Jordal & Kirkendall sp. nov. Figs 29, 32, 35

Type material.

Holotype, female: Costa Rica, Alajuela Province, N slope Volcan de Rincon, 2 km W. Dos Rios, 550 m, V-22-85. Blacklight. J.T. Doyen and P.A. Opler coll. [EMEC49554]. Paratype female: same data as holotype. The holotype is deposited in EMEC, 1 paratype in USNM.

Diagnosis.

Interstriae 10 carinate to near apex; protibiae with a tiny, additional mesal tooth near base of mucro. Pronotum lightly wrinkled on anterior third, punctured from base to anterior margin. Distinguished from the most similar species S. puer (Schedl, 1952), S. frontoglabratus (Schedl, 1935) and S. amoenus Wood, 1967 by the long shiny median field on the female frons, the presence of exactly 6 erect setae on elytra, and by the presence of a minute additional mesal tooth on the protibia.

Description female.

Length 2.0-2.1 mm, 2.2 × as long as wide; color light reddish brown to black, darkest on anterior half of pronotum, and near the elytral base and suture. Head. Eyes entire, separated above by 2.7 × their width. Frons weakly flattened between eyes, a longitudinal shiny impunctate area on median third on lower half, surrounded by fine medium-long curved setae. Antennal club setose, with two two strongly procurved sutures marked by longer setae, segment 1 and 2 darker, almost corneous. Funiculus 6-segmented. Pronotum reticulate, with fine punctures spaced by 1-2 × their diameter, anterior half with very fine asperities in front of each puncture. Vestiture consisting of six erect long setae (4 –0– 2). Elytra smooth, shiny; striae not impressed, punctures in row spaced by their diameter; interstriae broad, 4 × as wide as striae, punctures confused except almost seriate on interstriae 4. Interstriae 10 carinate to near apex. Vestiture consisting of 6 erect setae, one each at base of interstriae 7, one near declivity on interstriae 9 and 7. Legs. Procoxae separated by 0.6 × and mesocoxae 0.8 × the width of one procoxa. Protibiae parallel-sided, lateral teeth 1 and 2 of equal size, with 4 additional small granules along the lateral edge towards base; a tiny, additional mesal tooth present near base of mucro; protibial mucro very short curved posteriorly. Meso- and metatibiae with 5-6 small socketed lateral teeth on distal half. Ventral vestiture. Setae on metanepisternum and metasternum simple, on mesanepisternum trifid; sclerolepidia small round scales.

Male.

Not known.

Key

( Wood 1982). Keys to couplet 9, S. amoenus , but differs as indicated in the diagnosis.

Etymology.

The Latin name fimbriatus is a masculine adjective, meaning fringed, referring to the broad circle of golden erect setae in the female frons, surrounding a large impunctate and shining area.

Biology and distribution.

This species is only known from the lowland type locality in Costa Rica. Two individuals were attracted to UV light.