Limentinus nielsoni, Gnezdilov, 2021

Gnezdilov, Vladimir M., 2021, New species of the genera Limentinus Distant, 1917 and Calodia Nielson, 1982 (Hemiptera, Auchenorrhyncha, Cicadellidae, Coelidiinae) from the Makay Massif of Madagascar, with a key to Malagasy species, Zoosystema 43 (16), pp. 297-310 : 301

Limentinus nielsoni n. sp.

( Figs 3A, B ; 7 )

urn:lsid:zoobank.org:act:E7B8D25D-6557-46AC-9AB3-12CD2999CEE7

TYPE MATERIAL. — Holotype. Madagascar • ♂; Toliara Province, Massif du Makay ; 21°36.415’S, 45°06.769’E; 12.I.2011; sweeping in dry forest; V. M. Gnezdilov leg.; ZIN.

ETYMOLOGY. — The species is named in honour of famous American specialist on coelidiine leafhoppers William Mervin Nielson (1927-2019) who described most of Malagasy Limentinus species.

DIAGNOSIS. — Aedeagal shaft with three straight short processes apically, two spine-shaped slightly curved processes subapically on right and left sides (right processes longer) and two spine-shaped slightly curved processes (longest ones) below on left side ( Fig. 7 D-F). DESCRIPTION

Structure

In structure and coloration very similar to L. oryx n. sp. Second metatarsomere with two spines laterally and two platellae between them ventroapically.

Coloration ( Fig. 3A, B )

Scutellum with brown yellowish margins. Abdominal tergites black, each with pair of large orange yellow spots laterally running from its anterior margin to its yellow posterior margin. Abdominal sternites black, with yellow hind margins.

Male genitalia ( Fig. 7 )

Anal tube 1.5 times as long as wide, flattened ventrally ( Fig. 7G, H ). Anal column short. Pygofer covered by long setae; pygofer lobe triangularly elongate, with an additional small lobe on its apical angle under the anal tube and with ventral lobe in its basal half ( Fig. 7A, B ); apical lobes of pygofer each with eight and more setae on its inner side ( Fig. 7B ). Subgenital plate long and narrow, with microsetae apically and with long setae on the main surface. Aedeagus asymmetrical, shaft long and narrow, slightly curved (in ventral and lateral views), with small hook apically (in lateral view) ( Fig. 7D ), with three straight short processes apically, two spine-shaped slightly curved processes subapically on right and left sides (right processes longer) and two spine-shaped slightly curved processes (longest ones) below on left side ( Fig. 7 D-F), gonopore subapical, large ( Fig. 7F ). Styles small, elongate, with rounded apices ( Fig. 7D ). Connective arcuate ( Fig. 7C ).

Measurement

Total length. 6.0 mm.

Figures

FIG. 3. — Limentinus spp.: A, L. nielsoni n. sp., holotype, ZIN, dorsal view; B, same, frontal view; C, L. nigrifacies n. sp., holotype, ZIN, dorsal view; D, same, frontal view; E, L. nigrifacies n. sp., paratype, ZIN, dorsal view; F, same, frontal view. Total length of the specimens: 6.0 mm.

FIG. 7. — Limentinus nielsoni n. sp., holotype, ZIN, male genitalia: A, genital block (without aedeagus), lateral view; B, pygofer lobe, dorsal view; C, connective and basal part of aedeagus, ventral view; D, aedeagus, connective, and style, lateral view; E, aedeagus, connective, and style, ventral view; F, apical part of aedeagus, dorso-lateral view; G, anal tube, dorsal view; H, anal tube, lateral view. Not to scale.