Notionotus vatius, González-Rodríguez & Short, 2022
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publication ID |
https://dx.doi.org/10.3897/zookeys.1109.80775 |
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publication LSID |
lsid:zoobank.org:pub:A418DA2C-02DD-4023-A9F8-41FA0AEAAC83 |
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persistent identifier |
https://treatment.plazi.org/id/CD665789-B94F-4C19-AAE1-83B7ACCE9413 |
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taxon LSID |
lsid:zoobank.org:act:CD665789-B94F-4C19-AAE1-83B7ACCE9413 |
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treatment provided by |
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scientific name |
Notionotus vatius |
| status |
sp. nov. |
Notionotus vatius sp. nov.
Figs 4H View Figure 4 , 7C View Figure 7 , 13B View Figure 13 , 14 View Figure 14
Type material.
Holotype (male): "BRAZIL: Mato Grosso do Sul/ -20.72281°, -55.69127°; 225 m/Aquidauana (c. 27 km S) on/MS-174; leg. Hamada & team;/27.vi.2018; seepage & debris nr./stream margin; BR18-0627-01E" (INPA). Paratypes (38 exs.): Brazil: Mato Grosso do Sul State: Same data as holotype (19 exs., INPA, SEMC, including DNA Voucher 2324); Aquidauana on plateau (ca. 15 km E), -20.4509, -55.6218, 380 m, 22.vi.2018, leg. Hamada & team, detritus and washing roots at margin on rock, BR18-0622-03D (6 exs., SEMC, including DNA voucher SLE2327); Corumbá (ca. 27 km SE) by mountains, -19.28382, -57.57506, 146 m, 24.vi.2018, leg. Hamada & team, stream margin and leaf packs, BR18-0624-01A (1 ex., SEMC); Rio Bento Gomes (Pantanal), Campo Allegre I, 15°45'S, 56°33'W, 1993-1994, leg. E. Stuhr, spring-fed brook, (10 exs., NMW, SEMC). Bahia: Morro do Chapéu, Cachoeira Domingos Lopes, -11.55965, -40.90635, 675 m, 24.ii.2018, leg. Benetti & team, blackwater river and waterfall, BR18-0224-02A (1 ex., SEMC, DNA Voucher SLE2104); Livramento de Nossa Senhora, NE on BR-148, -13.6212, -41.81908, 536 m, 27.ii.2018, leg. Benetti & team, stream margins, BR18-0227-01A (1 ex., SEMC, DNA Voucher SLE2385).
Differential diagnosis.
Among the species of Notionotus liparus group, Notionotus vatius can be recognized by the brown dorsal coloration, and quite unique color pattern of the head frons and medial region of the clypeus dark brown, lateral side of the clypeus pale brown. In addition, the shape of aedeagus, especially the apex of the parameres is broad, blunt, and pointing slightly outwards, and the gonopore has rounded shape and it is situated at midlength of median lobe.
Description.
Size and form: Body length 1.7-2.3 mm. Body form elongate oval, strongly convex in lateral view (Fig. 4H View Figure 4 ). Color and punctation: Dorsally brown, head mostly brown, frons and medial region of the clypeus dark brown, lateral side of the clypeus pale brown; pronotum pale brown with two small black round spots along posterior margin, elytra dark brown (Fig. 4H View Figure 4 ). Ventrally dark brown; maxilla, maxillary palps, antennae (antennal club slightly darker) yellow, legs pale brown. Clypeus and labrum with dense, fine, and weakly impressed ground punctation (punctures separated by 2 × their width); pronotum and elytra ground punctation fine, weakly impressed and sparser than on head (punctures separated by 3 × their width). Head: Clypeus and labrum shallowly emarginate anteromedially, lateral margins of the labrum bearing setae. Thorax: Prosternum carinate medially, strongly raised, pointing anteriorly and acute. Elevation of mesoventrite with one transversal ridge, elevated medially, lateral sides concave; longitudinal ridge sharp, the point where the two ridges merged rounded and obtuse (e.g., Fig. 10B View Figure 10 ); elevation flat in lateral view; mesoventrite with triangular shape in ventral view. Metaventrite convex in the median region, pubescent with narrow glabrous patch on the medial and posterolateral area, medial region patch drop-shaped; anterior margin extending to mesoventrite elevation. Metafemora densely covered with hydrofuge pubescence on basal three-quarters. Abdomen: Abdominal ventrites very densely pubescent. Aedeagus (Fig. 7C View Figure 7 ) with basal piece nearly the same length as a paramere. Base of the parameres slightly narrower than the base of the median lobe; outer and inner margins sinuate; apex of parameres wide and blunt, pointing outwards. Median lobe of the same length as the parameres, wide at basal region, narrowing in the midlength, then widening along at apical third, apex rounded; gonopore with rounded shape and situated at midlength of median lobe.
Etymology.
The name is derived from the Latin word vatius meaning bent outwards, after the form of the parameres slightly pointing outwards of the aedeagus.
Distribution.
This species is known from several localities in Bahia and Mato Grosso do Sul States in Brazil (Fig. 14 View Figure 14 ).
Life history.
This species was collected on seepages and along the margins of rocky streams (Fig. 13B View Figure 13 ).
Remarks.
Although the known localities of this species are widely dispersed in Brazil, they are from similar habitats at similar elevations on the Brazilian Shield. Moreover, the specimens from Bahia and Mato Grosso do Sul states are less than 3% divergent in uncorrected pairwise distances in COI.
Notionotus lohezi species group
Diagnosis. The Notionotus lohezi species group can be distinguishable by the presence of three ridges in the elevation of the mesoventrite, two transverse ridge and one longitudinal (Fig. 10C, D View Figure 10 ); the basal piece is shorter than the parameres, the length of the median lobe is shorter than the parameres.
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.