Cissidium logunovi, Darby, 2020

Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, European Journal of Taxonomy 622, pp. 1-188 : 50-52

Cissidium logunovi sp. nov.

urn:lsid:zoobank.org:act:122C9AE2-B006-44CB-950A-058A2A927799

Fig. 32

Etymology

I am pleased to be able to name this species after Dr Dmitri Logunov, Keeper of Entomology at the Manchester Museum, who has always been most helpful to me.

Material examined

Holotype

NEPAL • Barahbise geg, Ting-Sang-La; H. Franz leg.; MMUE.

A fragment of a second specimen bearing this label, without head and pronotum, was also found in the collection.

Description

SIZE. Habitus ( Fig. 32A ), length 0.54 mm.

COLOUR. Yellow brown, pubescence, legs and antennae pale yellow.

HEAD. With shallow median depression between eyes, width across eyes 0.20 mm; mentum obscured; antennomeres III–XI, length 0.28 mm, III–IX length 0.16 mm, X–XI length 0.12 mm.

PRONOTUM. 0.19 mm long, 0.28 mm wide, with ± ten loosely formed fovea in basal half, some tending to join together; sides rounded, almost parallel sided to slightly acute hind angles, bordered, the borders not continuing along the posterior margin, medial emargination opposite the scutellum sinuate ( Fig. 32B ).

ELYTRA. 0.52 mm long, 0.40 mm wide, sparsely pubescent, foveolate, contrasting with the pronotum.

MESOVENTRITE. Medial extension of collar pointed; mid-keel posterior angles with carinae to mesocoxae, raised slightly medially before keel; keel parallel-sided then broadening to rounded spatulate termination between mesocoxae; mesoventral lateral margins serrate in posterior half; humeri rounded barely toothed ( Fig. 32C ).

METAVENTRITE. Sparsely pubescent, length 0.15 mm, disc simple, width across spines 0.14 mm; posterior margin of mesocoxae serrate.

WINGS. Apterous.

GENITALIA. Gender not known, specimen considered too fragile to risk dissection.

Remarks

This is the only species of Cissidium in this group recorded from Nepal.

Figures

Fig. 32. Cissidium logunovi sp. nov. A. Habitus. B. Pronotum, × 620. C. Mesoventrite showing median process of collar, mid-keel, keel and lateral margin, × 595.