Acrotrichis hanskii sp. nov.

urn:lsid:zoobank.org:act: 28ADD572-CE8E-4C39-9C75-60F541DE898F

Fig. 20

Diagnosis

The form of the genitalia distinguishes this species.

Etymology

Named after the collector, Ilkka Hanski.

Type material

Holotype MALAYSIA-BORNEO • ♀; Sarawak, 4 th division, Gunung Mulu National Park; 800–1700 m a.s.l.; 29 Apr. 1978; I. Hanski leg., BM 1978-524; pitfall trap fish bait, LMR forest slope 4-6; BMNH.

Paratypes MALAYSIA-BORNEO • 1 ♂, 1 ♀ (the ♂ mounted disarticulated on the slide); same data as for holotype; BMNH .

Description

SIZE. Habitus (Fig. 20A), length 0.76 mm.

COLOUR. Dark brown, antennae, and legs yellow, dorsal surface covered with fine yellow pubescence.

HEAD. Distance across eyes 0.28 mm; antennomeres III–XI, length 0.33 mm; mentum anterior margin concave, angles acute (Fig. 20G).

PRONOTUM. Length 0.19 mm, width 0.28 mm, lateral margins sinuate before acute hind angles (viewed from 45°) (Fig. 20B).

ELYTRA. Length 0.44 mm, width 0.44 mm.

VENTRUM. Mesoventrum reticulate, without pubescence, sides shallowly convex, collar with a narrow raised anterior margin, keel obliterated before collar, extending posteriorly to a fine point between the mesocoxae (Fig. 20F). Metaventrum reticulate, pubescent throughout, posterior margin between metacoxae with two sharp points at corners, ± ¹∕₅ the width of the sclerite (Fig. 20F).

ABDOMEN. Pygidium with indistinct teeth and medial point, anterior border with row of setae (Fig. 20H).

FEMALE GENITALIA. Spermatheca (Fig. 20D).

MALE GENITALIA. Aedeagus (Fig. 20E).