Acrotrichis globosa sp. nov.

urn:lsid:zoobank.org:act: 87156BD9-1A60-4E21-84F4-4A96D82E9FA2

Fig. 19

Diagnosis

The rounded body form, possession of elytra with wide epipleura and a medial foveola in the mesoventral collar distinguish this species.

Etymology

Refers to the globular form of the species.

Type material

Holotype MALAYSIA-BORNEO • ♀; Sarawak, 4 th Division, Gunung Mulu National Park; May–Aug. 1978; P.M. Hammond and J.E. Marshall leg., BM 1978-49; comp 5, alluvial forest litter; BMNH.

Paratypes MALAYSIA-BORNEO • 1 ♂, 1 ♀; same data as for holotype; BMNH • 1 ♀, same data as for holotype; comp 1, litter near stream; BMNH .

Description

SIZE. Habitus (Fig. 19A), length 0.82 mm.

COLOUR. Yellowish brown, antennae and legs pale yellow, dorsal surface densely covered with short yellow pubescence.

HEAD. Distance across eyes 0.38 mm; antennomeres III–XI, length 0.34 mm; mentum and submentum chaetotaxy (Fig. 19G).

PRONOTUM. Length 0.29 mm, width 0.63 mm, hind angles right angled (viewed from 45°) (Fig. 19B).

ELYTRA. Length 0.48 mm, width 0.62 mm, widest across humeri, with wide epipleura in basal half (Fig. 19F).

VENTRUM. Mesoventrum reticulate with scattered pubescence at lateral margins which are shallowly concave, collar with a small medial fovea, keel obliterated anteriorly before collar, posteriorly narrowing to a point between the mesocoxae (Fig. 19F). Metaventrum reticulate, pubescent, posterior margin between metacoxae wide, with two sharp points at corners, metacoxae separated by ± ¹∕₅ the width of the sclerite.

FEMALE GENITALIA. Spermatheca (Fig. 19D).

MALE GENITALIA. Aedeagus (Fig. 19E).