Cissidium clareae Darby 2020, sp. nov.
Creators: name: Darby, Michael
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptiliidae
Cissidium
Cissidium clareae

description: Cissidium clareae sp. nov.
urn:lsid:zoobank.org:act: 60592E41-BF69-4746-87C0-58D9D06F6370
Figs 6G, 19
Etymology
Johnson ms name, named after his wife Clare.
Material examined
Holotype SOLOMON ISLANDS • ♂; Guadalcanal, Mt. Austen; 14 Jul. 1964; no. 16411; P.J.M. Greenslade leg.; BMNH.
Paratypes SOLOMON ISLANDS • 1 ♀; Guadalcanal, Mt. Austen; 14 May 1963; no. 6018; P. Greenslade leg.; BMNH • 2 ♂♂, same collection data as for preceding but 20 May 1963; no 6100; BMNH • 2 ♂♂, same collection data as for preceding but 19 Jun. 1963; no. 6487; BMNH • 1 ♂; same collection data as for preceding but 1 Jul. 1963; no. 1269; MMUE • 1 ♀; same collection data as for preceding but 29 Jun. 1963; no. 11031; BMNH • 1 ♂; same collection data as for preceding but 22 Jul. 1963; no. 11278; MMUE • 1 ♀; same collection data as for preceding but 13 Oct. 1963; no. 11326; MMUE • 1 ♂; Mt. Jonapau; 3500–3750 ft a.s.l.; 6 May 1965; P. Greenslade leg.; BMNH • 1 ♂; Nuhu; 1000 ft a.s.l.; 28–31 Oct. 1965; forest litter; P.N. Lawrence leg.; MMUE • 1 ♀; Popomanasiu; 5000 ft a.s.l.; Oct. 1965; litter sample 6; no. 20489; P. Greenslade leg.; BMNH • 1 ♀; New Georgia, Kolombangara; nr Kuzi; 50 ft a.s.l.; 8 Sep. 1965; 781–800 m a.s.l.; valley litter; P.N. Lawrence leg.; BMNH • 1 ♀, same collection data as for preceding; 3–9 Sep. 1965; forest litter; BMNH.
Additional material
SOLOMON ISLANDS • 1 ♀; New Georgia, Wagina Is.; 3 Jul. 1965; no. 23223; P. Greenslade leg.; BMNH.
Description
SIZE. Habitus (Fig. 19A), length 0.66 mm.
COLOUR. Yellow.
HEAD. Without a clear linear depression behind the eyes, width across eyes 0.21 mm; antennomeres III–XI length 0.44 mm; mentum as Fig 4A.
PRONOTUM. Length 0.20 mm, width 0.28 mm, sparsely pubescent with a series of six foveae along the posterior margin in two pairs of three separated by a wider median gap; lateral margins sharply angled, concave posteriorly to rectangular hind angles, strongly bordered, the border not extending along the posterior margin which has a sinuous emargination before the scutellum (Fig. 19B).
ELYTRA. Length 0.44 mm, width 0.39 mm, pubescent, foveate in basal third.
MESOVENTRITE. Medial extension of collar onto mid-keel pointed; mid-keel wider anteriorly, posterior corners clearly reaching mesocoxae, sharply raised medially before keel; keel with ± two setae, parallelsided to a blunt termination beyond interruption of mesocoxal margins; mesoventral lateral margins serrate in posterior half; humeri bluntly toothed (Fig. 19C).
METAVENTRITE. Length 0.16 mm, with scattered pubescence and a shallow linear depression posterior to mesocoxae, disc in male strongly depressed, female with a small median fovea posterior to mesocoxae, width across the short triangular spines 0.12 mm; posterior margins of mesocoxal cavities serrate.
WINGS. Macropterous.
GENITALIA. Male aedeagus Fig. 6G. Female spermatheca globular.
Remarks
Distinguished from the other Cissidium in this group from the Solomon Islands by the absence of a medial extension of the mesoventral collar.
description: Published as part of Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, pp. 1-188 in European Journal of Taxonomy 622 on pages 30-32, DOI: 10.5852/ejt.2020.622, http://zenodo.org/record/3777282