Cissidium rogeri, 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 : 66-67

publication ID

https://doi.org/ 10.5852/ejt.2020.622

publication LSID

lsid:zoobank.org:pub:9CD3B2CD-F072-4994-8CA9-24145D343401

DOI

https://doi.org/10.5281/zenodo.3795608

persistent identifier

https://treatment.plazi.org/id/F2BA9299-E1DB-4804-957D-DE575C7A7AB3

taxon LSID

lsid:zoobank.org:act:F2BA9299-E1DB-4804-957D-DE575C7A7AB3

treatment provided by

Valdenar

scientific name

Cissidium rogeri
status

sp. nov.

Cissidium rogeri View in CoL sp. nov.

urn:lsid:zoobank.org:act:F2BA9299-E1DB-4804-957D-DE575C7A7AB3

Fig. 42 View Fig

Etymology

I am pleased to name this species after my brother-in-law Roger Allen.

Material examined

Holotype

RWANDA • ♂; Forest Rugage ; 2200 m a.s.l.; Mar. 1951; N. Leleup I.R.S.A.C. Mus. Congo leg.; MMUE.

Paratypes

RWANDA • 1 ♂, 2 ♀♀; same collection data as for holotype; 1 ♀ in poor condition mounted verso, 1 ♀ missing antennae; MMUE, BMNH.

Description

SIZE. Habitus ( Fig. 42A View Fig ), length 0.90 mm.

COLOUR. Yellow brown, head darker, pubescence, legs and antennae dusky yellow.

HEAD. Width across eyes 0.24 mm; antennomeres III–XI, length 0.44 mm, III–IX length 0.25 mm, X–XI length 0.19 mm.

PRONOTUM. Length 0.25 mm, width 0.32 mm, base with series of four foveae on each side, two series slightly separated opposite scutellum, all the foveae of approximately equal size, surface sparsely pubescent without foveolae; sides rounded, concavely narrowed to slightly acute hind angles; sides

bordered, the borders continuing along the entire basal margin, without a median emargination opposite the scutellum ( Fig. 42B View Fig ).

ELYTRA. 0.56 mm long, 0.50 mm wide, without foveolae.

MESOVENTRITE. With prominent reticulation; medial extension of collar widely based, sharply tapering to mid-point of mid-keel; mid-keel widest anteriorly then sides almost straight to angular hind angles, raised medially to sharp point before the keel; keel with ± three setae, tapering to narrow parallel-sided termination close to base of mesocoxae; mesoventral lateral margins serrate in posterior half ( Fig. 42C View Fig ).

METAVENTRITE. Length 0.15 mm, sparsely pubescent, almost glabrous, disc simple, distance across spines 0.13 mm; posterior margins of mesoventral coxal borders serrate.

WINGS. Macropterous.

GENITALIA. Aedeagus as Fig. 6 View Fig Fa–b.

Remarks

The only species of Cissidium to have been described from Rwanda.

MMUE

United Kingdom, Manchester, The University, Manchester Museum

BMNH

United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]

MMUE

Museum of Manchester University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ptiliidae

Genus

Cissidium

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