Scolytodes piliscapus 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 : 84-85

Scolytodes piliscapus Jordal , sp. nov.

urn:lsid:zoobank.org:act:0AB74528-BA08-4336-9FD6-9DD586F1C277

( Figs 21, 24, 27 )

Type material. Holotype, female: Panama, Chiriqui Pr., Rava la Fortua Est. Cientifia , el. 1150m, 23-VII-1994, UV light, Stockwell & Gillogly. HT deposited in TAMU.

Diagnosis. Interstriae 10 sharply elevated to near apex; protibiae with a very minute additional mesal tooth near tarsal insertion. Female scapus with long setae on its anterior face. Remotely related to S. perplexus Schedl , but differs by the long setae on the scapus, distinct asperities on the pronotum, and the lack of strial setae. In Central America it groups with species near S. genialis Wood in which all have confused interstrial punctures.

Description female. Length 2.3 mm, 2.2 × longer than wide; colour brown. Head. Eyes entire, separated above by 1.9 × their width. Frons weakly concave from upper level of eyes to epistoma, vestiture consisting of fine setae in entire impressed area except lower median quarter smooth and glabrous, setae along upper margin longer than below and longer than setae on scapus. Antennal club with two obliquely procurved sutures marked by setae, first segment corneous, suture 1 marked by darker colour, but not true septum. Funiculus 6-segmented, scapus with long setae on anterior side. Pronotum weakly reticulate, shallow punctures spaced by their diameter, small and obscure at base of asperities on anterior half. Vestiture consisting of 8 erect setae (4–2–2), and scant, short, fine, interspersed setae. Elytra generally smooth and shiny, striae not impressed, punctures distinct, in regular rows, separated by 1¯1.5 × their diameter; interstriae 3 × wider than striae, punctures half the size of those in striae; additional tiny punctures associated with larger strial and interstrial punctures. Vestiture consisting of erect interstrial setae, which are shorter and more densely placed on declivity; a tiny granule at base of many setae. Legs. Procoxae separated by 0.4 × and mesocoxae 0.8 × the width of one procoxa. Protibiae rather narrow, distal teeth 1 and 2 of equal length, with 2¯3 tiny teeth or granules along the edge towards base; protibial mucro long, thin and curved. Meso- and metatibiae with 7 lateral, socketed, thin teeth on distal half. Ventral vestiture. Setae on metasternum and metanepisternum simple.

Male. Unknown.

Key (Wood 1982). Keys to couplet 7 with no match because interstrial punctures are in rows.

Etymology. The name piliscapus is composed by the Latin noun pilus, meaning hair-like appendage, and the anatomical part of the antenna, scapus, meaning shank, referring to the setose extended part of the scapus.

Biology and distribution. This species is only known from the type locality in Panama, in medium altitude rain forest.

Figures

FIGURES 19–27. Dorsal, lateral and front view of the holotype of male Scolytodes monticola (19, 22, 25), female S. aureifrons (20, 23, 26), and female S. piliscapus (21, 24, 27).