Cissidium steeli Darby 2020, sp. nov.

Cissidium steeli sp. nov.

urn:lsid:zoobank.org:act: 86C4969A-78B4-4DD6-A2BB-443588CDFCD0

Fig. 80

Johnson ms name, after W. Steel, the well-known UK Coleopterist.

Holotype

TRINIDAD • ♀; Tamana; leaf litter; Aug. 1969; J. Darlington leg.; MMUE.

SIZE. Habitus (Fig. 80A), length 0.71 mm.

COLOUR. Dark brown, shining, pubescence, legs and antennae dusky yellow.

HEAD. With a foveolate shallow linear depression behind the eyes, width across eyes 0.20 mm; mentum as Fig. 4A; antennomeres III–XI, length 0.31 mm, III–IX length 0.20 mm, X–XI length 0.11 mm.

PRONOTUM. 0.19 mm long, 0.30 mm wide, sparsely pubescent without either foveolae or foveae; lateral margins evenly rounded to slightly acute hind angles, narrowly bordered, the border running along the entire posterior margin though narrower in the sinuous medial emargination in front of the scutellum (Fig. 80B).

ELYTRA. 0.45 mm long, 0.35 mm wide, pubescent as pronotum, shallowly foveolate. MESOVENTRITE. Medial extension of collar tapering posteriorly then parallel-sided; mid-keel broadest anteriorly then slightly concave to rounded posterior angles; keel with ± eight setae, long, parallel to pointed termination posterior to the interruption point of the mesocoxal margins; mesoventral lateral margins straight to rounded rectangular angles, without serrations; humeri toothed (Fig. 80C).

METAVENTRITE. Sparsely pubescent, length 0.15 mm, disc simple, width across spines 0.12 mm; posterior margin of mesocoxae serrate.

WINGS. Macropterous.

GENITALIA. Female spermatheca globular. Male not known.

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