Scolytodes rufus Jordal, 2018

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 : 92-93

Scolytodes rufus Jordal , sp. nov.

urn:lsid:zoobank.org:act:BD49DB5D-F5D8-49A6-88CA-ACFECE4E6B5C

( Figs 47, 50, 53 )

Type material. Holotype, female: Brazil, Bahia Camacan, Serra Bonita Reserve , 800m, GIS 15°23.429S, 39°33.810W, 10 May 2013, Cognato, Smith and Flechtmann, leg. Allotype and 8 paratypes: same data as HT. HT, AT and 2 PTs deposited in MZUSP, 2 PTs in UNESP, 4 PTs in ZMBN .

Diagnosis. Interstriae 10 sharply elevated to the level of metacoxae; protibiae with a small additional mesal tooth near tarsal insertion. Pronotum with coarse asperities on anterior two-thirds; female frons with long protuberant setae around a longitudinally shiny and impunctate callus.

Description female. Length 1.4¯ 1.6 mm, 2.4¯2.5 × longer than wide; colour light to dark reddish brown.

Head. Eyes entire, separated above by 2.5¯2.7 × their width. Frons flat from vertex to epistoma, strongly punctured in entire area except a longitudinal, narrow, impunctate callus on lower half; vestiture consisting of long golden setae pointing forward, forming a complete circle. Antennal club with two oblique sutures marked by fine setae. Funiculus 5-segmented. Pronotum weakly reticulated, subshining, shallow fine punctures separated by 2¯4 × their diameter, replaced on anterior two-thirds by coarse asperities. Vestiture consisting of 4 erect setae (4–0–0). Elytra smooth and shiny, striae not impressed, punctures moderately large, shallow, separated in irregular rows by 1¯2 × their diameter; interstriae 3 × wider than striae, punctures slightly smaller, in rows. Vestiture consisting of less than 20 erect setae on interstriae 3, 7 and 9. Legs. Procoxae separated by 0.6 × and mesocoxae 0.9 × the width of one procoxa. Protibiae narrow, distal tooth 1 slightly larger than 2, with 3¯4 additional granules or small spines towards base; protibial mucro obtuse. Meso- and metatibiae with 6¯7 lateral, socketed teeth, on distal half and third, respectively. Ventral vestiture. Setae on upper metasternum and metanepisternum trifid, occasionally bifid, simple below. Setae on ventrites 3¯5 coarse, directed caudally.

Male. Similar to females except smaller (length 1.3¯ 1.4 mm, 2.3 × longer than wide), frons convex with about 10 erect pointing setae on lower half.

Key ( Wood 2007). Keys to couplet 59, with no further match.

Etymology. The name rufus is a Latin nominative masculine adjective, meaning reddish or ruddy, referring to the distinctly reddish and dark yellow colour of apparently fully matured adult beetles.

Biology and distribution. This species is only known from the type locality in the Atlantic rainforest of Brazil, collected from an unknown host plant.

Figures

FIGURES 46–54. Dorsal, lateral and front view of the female holotype of Scolytodes capillus (46, 49, 52), S. rufus (47, 50, 53), and S. johnsoni (48, 51, 54).