Cissidium inexspectatum, 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 : 44-46

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.3795570

persistent identifier

https://treatment.plazi.org/id/213F3821-506C-42ED-8272-63DFB5D0C9C1

taxon LSID

lsid:zoobank.org:act:213F3821-506C-42ED-8272-63DFB5D0C9C1

treatment provided by

Valdenar

scientific name

Cissidium inexspectatum
status

sp. nov.

Cissidium inexspectatum View in CoL sp. nov.

urn:lsid:zoobank.org:act:213F3821-506C-42ED-8272-63DFB5D0C9C1

Fig. 28 View Fig

Etymology

Johnson ms name, derivation unclear.

Material examined

Holotype

NEW CALEDONIA • ♂; Col des Rousiettes; 1970; H. Franz leg.; MM holotype; MMUE.

Paratype

NEW CALEDONIA • 1 ♀; Table d’Union, Col d’Amieu; label lettering style suggests also collected by H. Franz; MMUE.

Description

SIZE. Habitus ( Fig. 28A View Fig ), length 0.63 mm.

COLOUR. Dark brown, shining, elytra dusky yellow where translucent, pubescence and antennae yellow.

HEAD. Without a clear linear depression behind the eyes, width across eyes 0.21 mm; antennomeres III– XI length 0.42 mm, III–IX length 0.25 mm, X–XI length 0.17 mm; mentum as Fig 4A. View Fig

PRONOTUM. Length 0.15 mm, width 0.25 mm, sparsely pubescent, with a row of six foveae in two groups of three separated medially; lateral margins rounded almost parallel posteriad to rectangular hind angles, lateral border not running onto the posterior margin which has a sinuous emargination in front of the scutellum ( Fig. 28B View Fig ).

ELYTRA. Length 0.45 mm, width 0.35 mm, pubescent, setae same length as pronotum, faintly foveolate the foveolae more strongly marked in basal half.

MESOVENTRITE. Collar medial extension pointed; mid-keel parallel-sided, posterior corners with short carinae reaching mesocoxae, sharply raised medially at junction with keel; keel with ± two setae, narrow,

long, with pointed termination slightly below interruption of mesocoxal margins; mesoventral lateral margins with ± two wide serrations; humeri toothed ( Fig. 28C View Fig ).

METAVENTRITE. Length 0.12 mm, with scattered setae, disc plain, width across spines 0.11 mm, posterior margins of mesocoxae not serrate.

WINGS. Macropterous.

GENITALIA. Male aedeagus as Fig. 6 View Fig Fa–b. Female spermatheca pear-shaped.

Remarks

The very long mesoventral mid-keel distinguishes this species from other New Caledonian Cissidium .

MMUE

United Kingdom, Manchester, The University, Manchester Museum

MMUE

Museum of Manchester University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ptiliidae

Genus

Cissidium

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