Cissidium ecuadoriense, 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 : 108-109

Cissidium ecuadoriense sp. nov.

urn:lsid:zoobank.org:act:4387F4E8-31A2-4780-9822-C6FCDDA1FA29

Fig. 68

Etymology

Named after the country where the insect was found.

Material examined

Holotype

ECUADOR • ♀; Ingenio San Carlos, Bguayoquil; Aug. 1975; H. Franz leg.; MMUE.

Paratypes

ECUADOR • 2 ex.; same collection data as for holotype; one mounted verso; MMUE, BMNH.

Description

SIZE. Habitus ( Fig. 68A ), length 0.71 mm.

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

HEAD. Frons behind the eyes obscured; width across eyes 0.19 mm; antennomeres III–XI length 0.28 mm, III–IX length 0.13 mm, X–XI length 0.15 mm; mentum and prementum obscured.

PRONOTUM. Length 0.20 mm, width 0.29 mm, pubescent, without either foveolae or foveae; lateral margins rounded and sinuate before rectangular hind angles, narrowly bordered, the borders extending along the posterior margin to the ends of the emargination opposite the scutellum ( Fig. 68B ).

ELYTRA. Length 0.41 mm, width 0.39 mm, pubescent, setae same length as pronotum, without foveolae.

MESOVENTRITE. Collar with a long, narrow, pointed medial extension; mid-keel anterior corners almost obliterated before reaching collar, posterior corners not joining mesocoxae, slightly raised at junction with keel; keel with ± eleven setae, long, narrow, parallel-sided to termination below interruption of mesocoxal margins; mesoventral lateral margins without serrations; humeri toothed ( Fig. 68C ).

METAVENTRITE. Length 0.15 mm, sparsely pubescent, disc plain, width across spines 0.08 mm; posterior margins of mesocoxal cavities without serrations.

WINGS. Macropterous.

GENITALIA. Female spermatheca globular. Males not known.

Remarks

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

Figures

Fig. 68. Cissidium ecuadoriense sp. nov. A. Habitus. B. Pronotum, × 400. C. Mesoventrite showing median process of collar, mid-keel and keel, × 1020.