Scolytodes inordinatus Jordal and Smith

Jordal, Bjarte H. & Smith, Sarah M., 2020, Scolytodes Ferrari (Coleoptera, Scolytinae) from Ecuador: 40 new species, and a molecular phylogenetic guide to infer species differences, Zootaxa 4813 (1), pp. 1-67: 23

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Scolytodes inordinatus Jordal and Smith

sp. nov.

Scolytodes inordinatus Jordal and Smith   , sp. nov.

( Figs 21, 24, 27 View FIGURES 19–27 )

Type material. Holotype, female: Ecuador: Napo province, Cosanga, McClarin’s camp, 2100m, GIS: -0.594, -77.877, ex Cecropia   petiole, #753, 18ii2018, R. Osborn, leg. GoogleMaps   Allotype and paratype (1): same data as HT. Holotype and allotype in QCAZ, 1 paratype   in MSUC.

Diagnosis. Interstriae 10 sharply elevated to near apex. Protibiae without additional mesal tooth. Distinguished from the very similar S. lugubris   by the female frons having denser tuft of setae, by the steeper declivity and more broadly rounded apex of the elytra. It is distinguished from S. chapuisi   by the confused interstrial punctures, mosaic reticulation in the elytral cuticle, the less reticulate male frons, and by distinct genetic differences.

Description female. Length 2.6–2.9 mm, 2.0–2.3 × as long as wide; colour dark brown. Head. Eyes entire, separated above by 2.8–3.0 × their width. Frons flattened, smooth and shiny in glabrous central area; vestiture consisting of long slick setae arising from vertex and reaching epistoma. Antennal club pilose, without sutures. Funiculus 6-segmented. Pronotum reticulated, dull, with tiny, shallow punctures spaced by 2 × their diameter, reaching anterior margin. Vestiture consisting of 6 erect, very long setae (4-0-2). Elytra shiny, generally smooth, with fine, mosaic-rugose microstructure; striae regular, weakly or not impressed, punctures shallow, small, spaced by 1–2 × their diameter; interstriae 3–4 × wider than striae, punctures smaller than in striae, strongly confused; interstriae 10 sharply elevated to near apex. Glabrous. Legs. Procoxae separated by 0.3–0.4 × the width of one procoxa. Mesocoxae separated by 0.8–0.9 × the width of a procoxa. Protibiae narrow, distal tooth 2 slightly stronger and loner than 1, with 3–4 sharp transverse rugae towards tibial base; protibial mucro nearly obtuse. Meso- and metatibiae with 7 lateral socketed teeth on distal half. Ventral vestiture. Setae on mesanepisternum, metanepisternum and metasternum simple.

Male. Similar to female except frons mainly glabrous, reticulated, dull.

Key ( Wood 2007). Keys to couplet 55 and 56, near S. chapuisi   , but has strongly confused interstrial punctures and micro-reticulated or mosaic ground structure on the elytral cuticle.

Etymology. The Latin name inordiatus is a masculine nominative adjective meaning disordered or irregular, referring to the strongly confused interstrial punctures.

Biology and distribution. Only known from the type locality in Ecuador. It was collected from Cecropia   petioles at high altitude together with S. projectus   , S. lubricus   , S. grandis   , and S. comosus   .


Museo de Zoologia, Pontificia Universidad Catolica del Ecuador