Scolytodes capillus 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

Scolytodes capillus Jordal , sp. nov.

urn:lsid:zoobank.org:act:D86D9BBB-D43C-4C25-A8A4-F37FD5FB7B88

( Figs 46, 49, 52 )

Type material. Holotype, female: Panama, Canal Zone, Albrook Forest Site, Fort Clayton, May 2¯3 1968, blacklight trap, Hutton leg. Allotype, male: same data as HT, except lot no. 165, Jan 11/12 1968. Paratypes (3 females): same data as HT (1), except March 7/8 (1), May 25/26 1967, Hutton & Llaurado (1). HT, AT and one PT deposited in USNM, 2 PTs in UTIC .

Diagnosis. Interstriae 10 sharply elevated to level of ventrite 3; protibiae without an additional mesal tooth. Distinguished from the most similar species, S. phoebeae Wood and S. amoenus Wood , by the much larger size and the broadly rounded, sub-truncated pronotum and elytral apex, and further from S. phoebeae by distinct asperities on pronotum, and from S. amoenus by the much longer and abundant setae in the female frons.

Description female. Length 3.1¯ 3.3 mm, 2.1¯2.2 × longer than wide; colour dark brown. Head. Eyes entire, separated above by 2.7¯2.8 × their width. Frons presumably flat from epistoma to vertex, entirely covered by a dense long brush of golden setae from vertex, along anterior eye margin, reaching epistoma. Antennal club setose with two sutures, first suture slightly procurved in the middle, marked by a dark septum, second suture procurved, obscurely marked. Funiculus 6-segmented. Pronotum weakly reticulated, subshining, shallow fine punctures separated by 1¯2 × their diameter, reaching anterior margin but more obscure on anterior half between low asperities. Vestiture consisting of 2¯4 erect setae (2/4–0–0). Elytra smooth and shiny, striae not impressed, punctures small, shallow, in irregular rows, separated by 1¯3 × their diameter; interstriae 4¯6 × wider than striae, punctures slightly smaller than strial punctures, confused, on declivity inseparable from and confused with strial punctures. Glabrous. Legs. Procoxae separated by 0.2¯0.3 × and mesocoxae 0.7¯0.8 × the width of one procoxa. Protibiae narrow, distal tooth 1 larger than 2, with 4-5 additional low transverse rugae or irregular granules along towards base; protibial mucro obtuse. Meso- and metatibiae with 8¯9 and 6¯7 lateral, socketed teeth, on distal half and third, respectively. Ventral vestiture. Setae on metasternum and metanepisternum simple.

Male. Similar to females except smaller (length 2.9 mm), frons convex, eyes separated above by 3.2 × their width, procoxae separated by 0.4 × their width.

Key (Wood 1982). Keys to couplet 10, with no further match.

Etymology. The name capillus is a Latin nominative noun (singular), meaning head of hair. The noun is a composite of the nouns caput, meaning head, and pilus, meaning hair.

Biology and distribution. This species is only known from the lowland type locality in Panama, attracted to black light.

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).