Cissidium loebli, 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 : 117-119

Cissidium loebli sp. nov.

urn:lsid:zoobank.org:act:F65097B6-D4E1-4050-942B-779A54F243D3

Fig. 74

Etymology

Named after the distinguished Czech entomologist Dr Ivan Löbl, one of the collectors of the specimens.

Material examined

Holotype

SRI LANKA • ♂; Central , Hakgala; 1200–1800 m a.s.l.; 28 Jan. 1970; Mussard, Besuchet and Löbl leg.; MMUE.

Paratypes

SRI LANKA • 2 ♀♀, 1 ♂; same collection data as for holotype; 1 ♀ and 1 ♂ mounted verso; MMUE.

Description

SIZE. Habitus ( Fig. 74A ), length 0.58 mm.

COLOUR. Yellow brown, pubescence and antennomeres slightly paler. HEAD. With several shallow foveae behind the eyes, not forming a distinct linear depression, eyes small, width across 0.16 mm; antennomeres III–XI length 0.34 mm, III–IX length 0.20, X–XI length 0.11 mm; mentum as Fig. 4B.

PRONOTUM. Length 0.14 mm, width 0.24 mm, reticulate, densely pubescent, without foveae; sides rounded, then almost parallel before slightly obtuse hind angles, narrowly bordered, the border continuing for a short distance only along the posterior margin, medial emargination opposite the scutellum sinuous ( Fig. 74B ).

ELYTRA. Length 0.36 mm, breadth 0.32 mm, reticulation and pubescence as pronotum.

MESOVENTRITE. Almost imperceptibly reticulate, without setae; median process of collar broad, widening posteriorly; mid-keel with two narrow carinae anteriorly forming semi-circular depressions; mid-keel parallel-sided, very short, posterior angles with carinae reaching mesocoxal anterior borders, slightly raised before joining keel; keel long, with ± ten setae, tapering to a point just past the mid-point of the mesocoxae; mesoventral lateral margins serrate in posterior third ( Fig. 74C ).

METAVENTRITE. Reticulate, most obvious on the disc, and pubescent, length 0.13 mm, width across spines 0.09 mm, disc simple.

GENITALIA. Not dissected.

Figures

Fig. 74. Cissidium loebli sp. nov. A. Habitus. B. Pronotum, × 670. C. Mesoventrite showing median process of collar, lateral margin, mid-keel and keel, × 1160.

Fig. 4. Menta and submenta. A. Cissidium petri Darby, 2015, × 1380. B. Cissidium tigrum Darby, 2015, × 1220. C. Cissidium amboroense Darby, 2015, × 1260. D. Cissidium losbanos sp. nov., × 1100. E. Cissidium triangulum Darby, 2019, × 650. F. Cissidium pilosellum sp. nov., × 1420.