Dolichostyrax moultoni Aurivillius, 1911

Gabris, Radim, Kundrata, Robin & Trnka, Filip, 2016, Review of Dolichostyrax Aurivillius (Cerambycidae, Lamiinae) in Borneo, with descriptions of three new genera and the first case of (ovo) viviparity in the long-horned beetles, ZooKeys 587, pp. 49-75 : 51

Taxon classification Animalia Coleoptera Cerambycidae

Dolichostyrax moultoni Aurivillius, 1911 Figs 1-12

Dolichostyrax moultoni Aurivillius, 1911: 195.

Type material.

Holotype, male, "Klinkang / 1-01 // Type // NHRS-JLKB / 000022860 // 5185 / E94 + // HOLOTYPE / Dolichostyrax / moultoni Aurivillius, 1911 / Labelled by Gabriš, 2016" (NHRS).

Diagnosis.

This species differs from Dolichostyrax longipes by apex of scape without a distinct bulge (Figs 5, 16, 24), tegmen basally without distinct strut (vs. short strut in Dolichostyrax longipes ; Figs 11, 19), and parameres with sparse long setae at apex only (vs. parameres with dense long setae at whole apical half; Figs 11, 19).

Redescription of holotype

(male). Body length 11.2 mm, body width 3.9 mm. Body brown; appendage joints and palpi lighter. Body densely clothed with very short golden brown pubescence, incorporating fine detritus particles. Head slightly narrower than anterior margin of pronotum. Antennae as long as body; scape gradually widened towards apex, thickest at apical part, covered with very short dense light brown pubescence; the relative ratio of antennomere lengths 2.0: 0.2: 1.0: 0.8: 0.6: 0.4: 0.4: 0.4: 0.4: 0.5: 0.8.

Prothorax 1.1 times as long as wide, laterally with one small obtuse tubercle; pronotal disc with a pair of distinct tubercles near middle and one median at second half; pronotal tubercles not punctured. Prosternum in front of coxae 0.7 times shorter than diameter of coxal cavity. Scutellum transverse, about four times as wide as long. Elytra elongate, 1.6 times as long as wide at widest part, 1.9 times as long as pronotum, widest before middle; each elytron with three rows of tubercles irregular in shape and size (Figs 1, 2), sparsely covered with large deep punctures arranged irregularly in rows, more distinct near elytral suture. Legs long, slender; tibial spurs with mesotibial ones inconspicuous; protarsi and left mesotarsus preserved with tarsomeres I–II only, metatarsus with tarsomere I only; relative lengths of metatarsomeres 1.0: 1.0: 1:3: 2.1.

Male genitalia with tegmen elongate, widest before middle, basally without distinct strut; parameres elongate, less than half of phallobase length, apically with sparse long setae (Figs 11, 12). Penis weakly curved at lateral view, apically truncate; dorsal struts diverged from 1/2 of penis length. Internal sac long, with paired small medial and distinct flagellar sclerites (Fig. 9-10).

Female unknown.

Distribution.

Malaysia: Borneo (Sarawak: “Klinkang”). There is “Klinkang” written on the original label, but “Kuching” in the original description ( Aurivillius 1911).