Calvariopsis bituberculata, Ruta, 2019
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publication ID |
https://doi.org/ 10.11646/zootaxa.4604.1.1 |
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publication LSID |
lsid:zoobank.org:pub:E6D82300-8DC6-4560-A945-8F29D3B3D501 |
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DOI |
https://doi.org/10.5281/zenodo.5921181 |
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persistent identifier |
https://treatment.plazi.org/id/71140E6C-F270-142C-73B5-EE6550C82944 |
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treatment provided by |
Plazi |
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scientific name |
Calvariopsis bituberculata |
| status |
sp. nov. |
Calvariopsis bituberculata sp. nov.
( Figs 1Q View FIGURE 1 , 3 View FIGURE 3 D–F, 5B, 20)
Type material. Holotype, male ( MNHG): “ Guyane Francaise \ Mont Grand Matoury \ 2.– 11.10.1995 \ M. Kocian lgt.” . Paratypes. 5 males ( MNHG): same data as holotype .
Diagnosis. Small (TL 1.9–2.0 mm), oval species externally resembling many other species included in group II of Calvariopsis gen. nov. Tegmen with basal apodemes, tergite VIII with narrow but deep U-shaped emargination in median portion of apical plate. Apex of abdominal ventrite 5 with two small tubercles.
Description. Male. Body oval, convex, covered with brownish, suberect setae. Dorsum brown, head slightly lighter than pronotum and elytra, venter brown, legs, antennae and mouthparts yellowish. Head broad, 1.9× wider than width of interocular space, with subtle punctation, punctures small, granulate, separated by 3.0× diameter of a puncture, eyes large, slightly protuberant. Pronotum transverse, widest at its base. Disc of pronotum with fine, granulate punctation, punctures separated by ca. 3.0–4.0× diameter of a puncture. Posterior margin of pronotum subtly bisinuate. Anterior angles protruding anteriorly, subtriangular, posterior angles right-angled. Scutellar shield subtriangular, almost impunctate. Elytra oblong, without traces of longitudinal ridges, widest in the middle of their length, sides curved, regularly converging to apex in posterior 1/3. Humeri well marked. Punctation stronger than on pronotum, punctures elongate, distance between punctures ca. the diameter of a puncture. Abdominal ventrite 5 with two small, subtriangular tubercles ( Figs 3F View FIGURE 3 , 20E View FIGURE 20 ) at apex.
Male genitalia. Penis (L 0.42 mm, W 0.11 mm, Fig. 20A View FIGURE 20 ) relatively wide, with curved sides, parameroids short, curved, with subtriangular apices, trigonium subtriangular, pointed at apex. Tegmen (L 0.34 mm, W 0.15 mm, Fig. 20B View FIGURE 20 ) U-shaped, with apodemes in basal portion, apices of parameres rounded, setose. Sternite IX (L 0.23 mm, W 0.10 mm, Fig. 20B View FIGURE 20 ) elongate oval, with single, relatively short apodeme, apical margin rounded, covered with short, sparse setae. Tergite VIII (L 0.30 mm, W 0.30 mm, Fig. 20C View FIGURE 20 ) with deep, U-shaped emargination in central portion of apical margin, apical margin subtly setose, apodemes as long as apical plate, slightly diverging. Tergite IX (L 0.28 mm, W 0.26 mm, Fig. 20D View FIGURE 20 ) with membranous and relatively narrow apical plate, apodemes as long as apical plate, strongly diverging.
Female. Unknown.
Measurements and ratios. Males (n = 2) TL 1.93–2.00 (1.97) mm, PL 0.43 (0.43) mm, PW 0.97–1.00 (0.98) mm, EL 1.63–1.70 (1.67) mm, EW 1.30–1.33 (1.31) mm, TL/EW 1.45–1.54 (1.50), PW/PL 2.23–2.31 (2.26), EL/ EW 1.25–1.31 (1.27), EL/PL 3.77–3.92 (3.86).
Distribution. Known only from the type locality in French Guiana.
Etymology. The name refers to the presence of paired tubercles on the last abdominal ventrite.
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.