Scolytodes spatulatus 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 spatulatus Jordal & Kirkendall sp. nov. Figs 19, 22, 25

Type material.

Holotype: Costa Rica, Prov. Heredia, 11 km ESE La Virgen, 250-350 m, 10°21'N, 84°03'W, 21 Mar. 2004, INBio-OET-ALAS transect, Intercept trap 03/TN/14/017, INB0003619017. Holotype deposited in MNCR.

Diagnosis.

Interstriae 10 weakly carinate to level of metacoxa, interstriae 9 carinate on posterior half; protibiae without additional mesal tooth. Distinguished from S. comosus by the long spatulate setae on each declivital striae, by the broader shape of the pronotum, the more narrowly separated eyes, and by the plumose setae on the metanepisternum.

Description, female(?)

Length 1.3 mm, 2.1 × as long as wide; color dark brown. Head. Eyes entire, separated above by 2.1 × their width. Frons generally flat, narrowly impressed just above epistoma, surface irregularly punctured, reticulate; vestiture consisting of sparse long fine setae pointing medially. Antennal club setose, sutures not discernible, basal part of segment 1 corneous. Funiculus possibly 5-segmented. Pronotum smooth on posterior half, with shallow punctures spaced by 1-2 × their diameter, on anterior half replaced by low scattered asperities; surface reticulate, subshining. Vestiture consisting of long fine setae (0 –0– 0). Elytra generally smooth, but punctures crenulated; striae not impressed, punctures small, crenulated on the anterior margin, spaced by 1-2 × their diameter; punctures in interstriae similar and entirely confused with those in striae. Interstriae 10 weakly carinate to level of metacoxa, interstriae 9 carinate on posterior half. Vestiture consisting of long fine strial and interstrial setae, with additional spatulate long setae in each striae on declivity. Legs. Procoxae separated by 1.0 × and mesocoxae 1.2 × the width of one procoxa. Protibiae broad, lateral tooth 1 as long as 2, tooth 2 exposed and socketed, with additional 2-3 granules along the lateral edge towards base; protibial mucro large, and curved posteriorly. Meso- and metatibiae with 6 socketed lateral teeth on distal half. Ventral vestiture. Setae on metanepisternum trifid or plumose, on metasternum long and simple; sclerolepidia and setae on epimeron plumose.

Key

( Wood 1982). Keys to couplet 6 with no match (see S. comosus , above). One should reach couplet 20, near S. punctiferus .

Etymology.

The Latin name spatulatus is a masculine adjective, meaning spatula-like, referring to the broad tips of the longest setae on declivity.

Biology and distribution.

This species is only known from the type locality in a lowland rain forest site south of La Selva Biological Station.