Cissidium besucheti, Darby, 2020
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publication ID |
https://doi.org/ 10.5852/ejt.2020.622 |
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publication LSID |
lsid:zoobank.org:pub:9CD3B2CD-F072-4994-8CA9-24145D343401 |
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DOI |
https://doi.org/10.5281/zenodo.3795656 |
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persistent identifier |
https://treatment.plazi.org/id/7F5ED7E5-78EA-4BED-8512-F61581F1569C |
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taxon LSID |
lsid:zoobank.org:act:7F5ED7E5-78EA-4BED-8512-F61581F1569C |
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treatment provided by |
Valdenar |
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scientific name |
Cissidium besucheti |
| status |
sp. nov. |
Cissidium besucheti View in CoL sp. nov.
urn:lsid:zoobank.org:act:7F5ED7E5-78EA-4BED-8512-F61581F1569C
Fig. 65 View Fig
Etymology
Johnson ms name after the collector Claude Besuchet.
Material examined
Holotype
SRI LANKA • ♂; North Central, Alut Oya , river edge on damp sand; 3 Feb. 1970; Mussard, Besuchet and Löbl leg.; MMUE.
Paratypes
SRI LANKA • 1 ♂, 2 ♀♀; same collection data as for holotype; 1 ♂, 1 ♀ mounted verso, latter missing antennae; MMUE, BMNH.
Description
SIZE. Habitus ( Fig. 65A View Fig ), length 0.54 mm.
COLOUR. Dusky yellow.
HEAD. With a barely marked linear depression behind the eyes, width across eyes 0.16 mm; antennomeres III–XI length 0.20 mm, III–IX length 0.12 mm, X–XI length 0.08 mm, constriction in antennomere XI obscured by setae; mentum as Fig. 4A. View Fig
PRONOTUM. Densely pubescent; length 0.16 mm, width 0.19 mm, with shallow foveolae in basal half; sides rounded, hind angles obtuse, bordered, the border also on the posterior margin up to the corners of the sinuous emargination opposite the scutellum ( Fig. 65B View Fig ).
ELYTRA. Densely pubescent; length 0.34 mm, width 0.24 mm, appearing more parallel-sided than other species, pubescence a little shorter than on pronotum, foveolate.
MESOVENTRITE. Medial extension of collar onto mid-keel parallel-sided, rounded posteriorly; mid-keel margins narrowing anteriorly to join collar extension, posterior margin not reaching anterior margin of mesocoxal borders; keel narrow, tapering to a sharp point below the midpoint of the mesocoxae; mesoventral lateral margins serrate; humeri bluntly toothed ( Fig. 65C View Fig ).
METAVENTRITE. Length 0.13 mm, pubescent except in anterior corners, width across spines 0.07 mm, disc simple; posterior margins of mesocoxal cavities not serrate.
WINGS. Macropterous.
GENITALIA. Male aedeagus as Fig. 6 View Fig Ia–b. Female spermatheca not detected in the dissection.
Remarks
One of the only two species of Cissidium from Sri Lanka in this group. Distinguished from C. loebli sp. nov. by its smaller size, shorter antennae, more parallel elytra and paler colouration.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.