Scolytodes uniseriatus, Jordal

Jordal, Bjarte H., 2013, New species and records of Scolytodes (Coleoptera, Curculionidae: Scolytinae) from South America, Zootaxa 3721 (6), pp. 529-551 : 530-532

Scolytodes uniseriatus, Jordal , sp. nov.

urn:lsid:zoobank.org:act:624054F7-AFBE-416F-8291-640EE560A54B ( Figs 1, 4, 7 )

Type material. Holotype, female: " Bolivia, La Paz, Coroico, Cerro Uchumachi, 2550 m, 16º 12.71' S 67º42.81' W, 28.1.2001, R. Anderson. Cloud forest litter, 2001-014C." Allotype: same locality as holotype, with code 014D. Paratypes (11): same label data as holotype, with dates 26.1 and 28.1.2001 (8); Bolivia, La Paz, Coroico, Cerro Uchumachi, 2150 m, 16º 12.16' S 67º43.33' W, 27.1.2001, R. Anderson, 2nd growth cloud forest litter, 2001-013A (1); Bolivia, La Paz, 6.0 km W. Chulumani, El Paraiso, 2550 m, 16º 23.61' S 67º33.19' W, 20.1.2001, R. Anderson, wet Clusia –bamboo litter, 2001-006B/C (2). Holotype and allotype deposited in CMN. Paratypes deposited in ZMBN (2), USNM (2), and CMN (7).

Diagnosis. Interstriae 10 sharply elevated far beyond level of metacoxae, protibiae containing an additional mesal tooth. Female frons simple, identical to male. Similar to S. laevigatus Ferrari but smaller and differs by having uniseriate interstrial punctures, smaller size, and more widely separated procoxae.

Description male and female. Length 1.7–2.0 mm, 2.15–2.25 times longer than wide; colour black. Head. Eyes separated above by 3.3 times their width. Frons flat to weakly convex; surface smooth, shining, median third from vertex to epistoma impunctate, scattered punctures along impunctate margin. Vestiture consisting of scattered short setae in punctate area. Antennal club flattened, with two transverse sutures marked by setae. Funiculus 6- segmented. Pronotum as long as wide, sides gently curved, widest at mid-length, broadly rounded in front; surface finely reticulated, shiny, with small punctures reaching anterior margin spaced by three times their diameter. Vestiture consisting of scattered setae in anterior-lateral margins, 6 slightly longer fine setae in front, 4 at midlength close to lateral margin, and one in each hind corner (6–4–2, sometimes 4–2–2). Elytra 1.3 times longer than wide, 1.6–1.7 times longer than pronotum; broadest at mid-length, broadly rounded behind; striae not impressed, punctures small and elongated, shallow, in regular rows, spaced by three times their length; interstriae four times wider than striae, punctures similar to those in striae, spaced by a distance equal to every two strial punctures. Interstriae 10 reaching near elytral apex. Vestiture consisting of 2–5 erect setae on interstriae 3, 5, 7 and 9. Legs. Procoxae separated by 0.7 times the width of a coxa. Mesocoxae separated by 1.2 times the width of one procoxa. Protibiae gradually broader distally, broadest at level of lateral tooth 2, distal teeth 1 much shorter than 2, about 5 additional tiny spines (granules) along its lateral edge towards base; a sharp long additional socketed tooth attached close to tarsal attachment, directed towards lateral tooth 2; protibial mucro short, straight. Mesotibiae with 6–7 lateral socketed teeth on distal half. Metatibiae with 6–8 lateral socketed teeth on distal third. Ventral vestiture. Setae on mesanepisternum and metanepisternum simple.

Key. There is a conflict in couplet 1, given the presence of an additional mesal tooth on the protibae and a long and raised interstriae 10. Couplet 59 is a blind end. Following couplet 2 leads to couplet 28 and S. laevigatus . It should be noted that S. laevigatus also has an additional mesal tooth on protibiae and does not fit the key at couplet 1.

Etymology. The name refers to the near geometrically straight linear rows of strial and interstrial punctures on the elytra.

Biology and distribution. This species is only known from three nearby localities in the La Paz district of Bolivia.

Figures

FIGURES 1 – 9. Dorsal, lateral and front view of Scolytodes uniseriatus (1, 4, 7), S. clusiapraelatus (2, 5, 8), S. clusiaphilus (3, 6, 9).