Storicricha resticula, 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 : 45-47

Storicricha resticula sp. nov.

urn:lsid:zoobank.org:act:B5C10EEB-971E-45BB-B96C-F0428F4FF140

Fig. 23

Diagnosis

The bifid termination of the metaventrum and form of the spermatheca distinguish this species.

Etymology

From the Latin ‘ resticula ’, meaning ‘rope’, and referring to the form of the spermatheca duct.

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 ; litter below comp 4; BMNH.

Paratypes

MALAYSIA-BORNEO • 1 spec.; Sarawak, 4 th division, Gunung Mulu National Park ; 29 Apr. 1978; I. Hanski leg.; pitfall trap fish bait LMR forest, slope 10-12; BMNH • 1 spec. (mounted disarticulated on the slide); same data as for preceding; above 1700 m a.s.l.; UMR forest, traps 1–6; BMNH • 2 specs; Sarawak, Mulu ; 16 Mar. 1978; N.M. Collins leg.; MDF pitfalls; BMNH • 1 ♂, 1 ♀ (one mounted disarticulated on the slide); same data as for preceding; May–Aug. 1978; P. M. Hammond and J.E. Marshall leg., BM 1978-491 ; comp 4, human faeces; BMNH • 1 spec.; same data as for preceding; under bark of log; BMNH • 2 specs; same data as for precedings; moss; BMNH .

Note

Many further examples from the Gunung Mulu National Park determined by association, not classed as paratypes, retained in alcohol.

Description

SIZE. Habitus ( Fig. 23A ), length 0.81 mm.

COLOUR. Yellow brown, head darker, antennae, and legs yellow, dorsal surface covered with overlapping yellow pubescence.

HEAD. Distance across eyes 0.27 mm; antennomeres III–XI, length 0.36 mm; mentum and submentum chaetotaxy ( Fig. 23G ).

PRONOTUM. Length 0.23 mm, width 0.46 mm, hind angles right angled ( Fig. 23B ).

ELYTRA. Length 0.47 mm, width 0.46 mm.

VENTRUM. Mesoventrum reticulate, without pubescence, keel obliterated anteriorly before meeting collar, narrowing to a point between the mesocoxae ( Fig. 23F ). Metaventrum reticulate and pubescent throughout, posterior margin between metacoxae reduced to two sharp points, adjacent cells with microtrichiae ( Fig. 23G ).

ABDOMEN. Pygidium lateral teeth obscured, apical point extended forwards, anterior border with row of setae ( Fig. 23H ).

FEMALE GENITALIA. Spermatheca ( Fig. 23D ).

MALE GENITALIA. Aedeagus ( Fig. 23E ).

Figures

Fig. 23. Storicricha resticula sp. nov. A. Habitus. B. Hind angle of pronotum viewed at 45°. C. Antennomeres III–XI. D. Spermatheca. E. Aedeagus. F. Mentum and submentum ×1000. G. Meso- and metaventra ×320. H. Bifid process between metacoxae ×1700. I. Pygidium.