Nestorinus, Guerrero & Vidal G-H & Zúñiga-Reinoso, 2022
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publication ID |
https://doi.org/ 10.1093/zoolinnean/zlab026 |
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DOI |
https://doi.org/10.5281/zenodo.6360701 |
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persistent identifier |
https://treatment.plazi.org/id/952887BE-FF88-FFB2-FECC-FCB4FDDC3343 |
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treatment provided by |
Plazi |
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scientific name |
Nestorinus |
| status |
gen. nov. |
GENUS NESTORINUS GEN. NOV.
( FIGS 3–5 View Figure 3 View Figure 4 View Figure 5 )
Zoobank registration: lsid: zoobank. org:act: 52AD1756-C1EC-40FD-A07F-681585547BEF
Diagnosis: Body elongated, black, shiny and slightly convex ( Fig. 3A View Figure 3 ). Flightless. Head tilted down, narrower at the base, wider at eye level. Clypeus transverse, anterior margin emarginate. Suture between clypeus and frons visible. Genae developed. Eyes vertical (lateral view) and reniform. Antennae with 11 antennomeres. Antennomeres VII–XI with stellate sensoria. Pronotum transverse, slightly convex ( Fig. 3B View Figure 3 ). Anterior margin sub-straight. Basal margin wide, visible and bisinuate. Elongated and striate elytra. Nine striae formed of coarse punctures ( Fig. 3C View Figure 3 ). Prosternum narrow. Prosternal apophysis slightly raised. Anterior portion of mesoventrite with a central carina ( Fig. 3D View Figure 3 ). Metaventrite wide, smooth and shiny ( Fig. 3D View Figure 3 ). Abdominal ventrite IV narrower than I– III (1:2; Fig. 3D View Figure 3 ). Abdominal ventrite V triangular, finely punctured and with margins barely visible. Visible membrane in the last two abdominal ventrites. Defensive glands below abdominal ventrite V large, wrinkled and with basal collecting tube ( Fig. 3E View Figure 3 ). Legs long and thin ( Fig. 3A, D View Figure 3 ). Femora and tibiae slightly punctured. Tibiae internally with a smooth carina slightly visible, with a row of semi-erect setae both sides of the carina. Mesotibiae and metatibiae with semi-erect setae on the margins of the internal face and dense pilosity in the central cleft of the internal face ( Fig. 3F View Figure 3 ). Aedeagus with parameral alae robust ( Fig. 3G View Figure 3 ).
Females in general similar to males ( Fig. 4A View Figure 4 ), but larger. Metatibiae with sparse semi-erect setae on the margins of the internal face; central cleft of the internal face with sparse pilosity ( Fig. 4B View Figure 4 ). Ovipositor ( Fig. 4C View Figure 4 ) greatly elongated, membranous except for baculi. Baculi of first coxite long. Lobes of coxites 2, 3 and 4 membranous and thinning to the apex. Spermatheca spherical, with surface grooved ( Fig. 4D View Figure 4 ).
Mature larva: Body elongate-cylindrical and yellowish ( Fig. 5A View Figure 5 ). Head prognathous, slightly declined; globular butslightlyflatteneddorsoventrallyandwithtransversal wrinkles close to the lateral margin. Epicranial suture Y-shaped ( Fig. 5B View Figure 5 ). Each half of the head with 13–17 erect setae placed dorsal and laterally. Three stemmata with variable pigmentation placed on each side of the head and below the antennae ( Fig. 5B, C View Figure 5 ). Clypeus with a long seta on each side of the disc and three shorter setae on the lateral margin. Labrum transverse, anterior margin bilobed, with two long discal setae, two anterior long setae and 16 shorter setae on the anterior margin ( Fig. 5B View Figure 5 ). Antennae with globular base and composed of three antennomeres ( Fig. 5B, C View Figure 5 ). Antennomere I four times as long as wide. Antennomere II ovoid, twice as long as wide. Antennomere III twice as long as wide, with a single apical seta. Mandibles asymmetrical ( Fig. 5C View Figure 5 ), with three teeth on each one. Prothorax longer than wide; meso- and metathorax wider than long ( Fig. 5A View Figure 5 ). Each notum with 10–12 spacing setae on both sides of the mid-line. Mesothoracic spiracle longer than the abdominal spiracle ( Fig. 5A View Figure 5 ). Metathoracic spiracle not visible. Prothoracic legs slightly larger than the others; all legs with elongated trochanter ( Fig. 5C View Figure 5 ). Simple claw, sharp and apically curved. Abdominal segments I–VII similar in aspect, gradually widening toward the back ( Fig. 5A View Figure 5 ). Tergum with spacing setae as the thoracic segments. Annular spiracles with four to six setae in the anterior margin and two setae in the posterior margin. Tergum VIII punctured and sclerotized ( Fig. 5D View Figure 5 ). Two prominent processes raised in the posterior half, with coriaceous appearance ( Fig. 5D View Figure 5 ). Three thorns at side, in a diagonal direction from the middle anterior margin to the lateral margin and decreasing in size. Tergum IX short, about half the width of tergum VIII and hinged to it, allowing curved urogomphi to come forwards to oppose and contact processes of tergum VIII ( Fig. 5D View Figure 5 ). Several long setae surround tergum IX, being densest on the base ( Fig. 5E View Figure 5 ). Two urogomphi, each with four strongly sclerotized thorns decreasing in size toward the sides and curved dorsally, with sharp apices pointing anteriorly ( Fig. 5D View Figure 5 ). The main thorn in the second position from the mid-line is twice as long as the others ( Fig. 5E View Figure 5 ). In posterior view, each urogomphus has four to seven secondary thorns below the main thorns ( Fig. 5E View Figure 5 ). Another two rows of shorter thorns are present lower. The first line has eight thorns and the second has 10–12 tiny thorns ( Fig. 5E View Figure 5 ).
Etymology: The genus name is a masculine adjective, chosen to combine the words ‘Nestor’, after Néstor Zambrano who collected the first specimens, and ‘-rinus’ from Nycterinus, a Tenebrioninae that looks similar to this new taxon.
Type species: Nestorinus roitmani sp. nov.
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.