Cissidium arcuatum, 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.3795658 |
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persistent identifier |
https://treatment.plazi.org/id/990BE6BE-B990-4332-91A4-11B17CD39C1B |
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taxon LSID |
lsid:zoobank.org:act:990BE6BE-B990-4332-91A4-11B17CD39C1B |
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treatment provided by |
Valdenar |
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scientific name |
Cissidium arcuatum |
| status |
sp. nov. |
Cissidium arcuatum View in CoL sp. nov.
urn:lsid:zoobank.org:act:990BE6BE-B990-4332-91A4-11B17CD39C1B
Figs 6D View Fig , 64 View Fig
Etymology
Johnson ms name, presumed to be after the shape of the pronotal lateral margins.
Material examined
Holotype
VIETNAM • ♀; Tonkin, Hoabinh; A.de Cooman leg.; BM.1940-13; BMNH.
Paratype
VIETNAM • 1 ♀; same collection data as for holotype; mounted verso; MMUE,
Description
SIZE. Habitus ( Fig. 64A View Fig ), length 0.67 mm.
COLOUR. Dark brown, pubescence, legs and antennae yellow.
HEAD. With a shallow linear depression behind the eyes, width across eyes 0.21 mm; antennomeres III– XI length 0.36 mm, III–IX length 0.20 mm, X–XI length 0.16 mm; mentum as Fig. 4A. View Fig
PRONOTUM. Length 0.18 mm, width 0.30 mm, with scattered pubescence and two short linear depressions converging posteriorly to base at sides of emargination opposite scutellum; lateral margins rounded and then sinuate to obtuse hind angles, bordered, the border extending along the posterior margin to the medial emargination ( Fig. 64B View Fig ).
ELYTRA. Length 0.47 mm, width 0.39 mm, pubescent, shallowly foveolate, length of setae as pronotum.
MESOVENTRITE. Collar with wide medial area on the anterior margin without reticulation; medial extension of collar short, wide, coarsely sculpted; mid-keel parallel-sided with two concave insertions anteriorly, hind angles not reaching anterior margins of mesocoxal borders; keel with a series of ± eight setae broadest anteriorly then narrowing with slightly concave margins to a rounded tip at the interruption of the mesocoxal borders; mesoventral lateral margins serrate; humeri strongly toothed ( Fig. 64C View Fig ).
METAVENTRITE. Length 0.17 mm, width across spines 0.11 mm, with scattered setae, disc simple. Posterior margins of mesocoxal cavities not serrate.
WINGS. Macropterous.
GENITALIA. Female spermatheca Fig. 6D View Fig ; male aedeagus as Fig. 6 View Fig Fa–b, but length 0.10 mm.
Remarks
Distinguished from C. aristophanousi sp. nov. by the two elongate foveae on the pronotum.
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.