Storicricha umbella, Darby, Michael, 2019

Darby, Michael, 2019, New Ptiliidae (Coleoptera) from Sarawak in the spirit collection of the Natural History Museum, London, European Journal of Taxonomy 512, pp. 1-50 : 47-49

Storicricha umbella sp. nov.

urn:lsid:zoobank.org:act:A1094C0A-72D5-4048-9ACE-926CF1D0F21C

Fig. 24

Diagnosis

The fan-shaped form of the spermathecal pump distinguishes this species and is unique amongst Ptiliidae .

Etymology

Refers to the form of the spermathecal pump.

Type material

Holotype MALAYSIA-BORNEO • ♂; Sarawak, 4th 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 • 5 specs (two mounted disarticulated on the slides); same data as for holotype; BMNH • 4 specs; same data as for holotype; Mar.–Aug. 1978; traps 1–6; BMNH .

Description

SIZE. Habitus ( Fig. 24A ), length 0.67 mm.

COLOUR. Dark brown, covered with fine overlapping pale pubescence.

HEAD. Distance across eyes 0.29 mm; antennomeres III–XI, length 0.34 mm; mentum and submentum chaetotaxy ( Fig. 24G ).

PRONOTUM. Length 0.21 mm, 0.45 mm hind angles acute ( Fig. 24B ).

ELYTRA. Length 0.49 mm, width 0.48 mm.

VENTRUM. Mesoventrum reticulate, without pubescence, lateral margins short, slightly concave, keel obliterated before meeting collar and terminating posteriorly in a fine point between the mesocoxae ( Fig. 24F ). Metaventrum reticulate, pubescent, posterior margin reduced to two sharp points between the metacoxae ( Fig. 24F ).

ABDOMEN. Pygidium lateral teeth and apical point obscured, anterior border with row of setae ( Fig. 24H ).

FEMALE GENITALIA. Spermatheca ( Fig. 24D ).

MALE GENITALIA. Aedeagus ( Fig. 24E ).

Figures

Fig. 24. Storicricha umbella sp. nov. A. Habitus. B. Hind angle of pronotum viewed at 45°. C. Antennomeres III–XI. D. Spermatheca. E. Aedeagus. F. Meso- and metaventra ×340. G. Mentum and submentum ×1300. H. Abdominal ventrites.