Nephus (Nephus) oblongosignatus Mulsant, 1850

Magro, Alexandra, Churata-Salcedo, Julissa, Lecompte, Emilie, Hemptinne, Jean-Louis & Almeida, Lucia M., 2020, A new species of Nephus (Nephus) (Coleoptera, Coccinellidae) described from Reunion Island, ZooKeys 962, pp. 123-137 : 123

publication ID	https://dx.doi.org/10.3897/zookeys.962.51520
publication LSID	lsid:zoobank.org:pub:3A37A055-1B1E-4B5B-A6B5-518BDE44A334
persistent identifier	https://treatment.plazi.org/id/42ED2DD7-CD06-5867-8BDD-648A7AF45570
treatment provided by	ZooKeys by Pensoft
scientific name	Nephus (Nephus) oblongosignatus Mulsant, 1850
status

Treatment

Nephus (Nephus) oblongosignatus Mulsant, 1850 Figs 1 View Figure 1 , 2 View Figure 2

Scymnus oblongosignatus Mulsant, 1850: 960 (original description).

Nephus oblongosignatus : Sicard 1909: 145-146; Weise 1910: 513.

Nephus grinerae Sicard, 1909: 145 (original description); Korschefsky 1931: 152 (synonymy).

Scymnus (Nephus) oblongosignatus : Korschefsky 1931: 152; Chazeau et al. 1974: 273 (systematics).

Nephus (Nephus) oblongosignatus : Poussereau et al. 2018: 130 (systematics).

Diagnosis.

Nephus oblongosignatus is similar to N. voeltzkowi and N. apolonia sp. nov. but differs in the body shape, size and shape of the spots and the pattern of genitalia.

Description.

Male. Length 1.77 mm, width 1.28 mm. Body oval, oblong, with short fine whitish pubescence. Integument of pronotum, scutellar shield and elytra black (Fig. 2A View Figure 2 ). Elytra with one yellowish oblong spot on each elytron. Pronotum black, antero-lateral border dark brown (Fig. 2A, D View Figure 2 ). Head dark brown, antennae and mouthparts yellowish (Fig. 2B, D View Figure 2 ). Meso- and metaventrite light brown. Epipleuron light brown, without excavations to receive femora. Legs with coxae and femora dark brown, tibiae and tarsi light brown (Fig. 2B, C View Figure 2 ). Abdomen light brown; postcoxal line incomplete (Figs 1M View Figure 1 , 2E View Figure 2 ) and last ventrite emarginated (Fig. 2F View Figure 2 ).

Genitalia with tegmen, penis guide, phallobase and parameres symmetrical. Spicule long (Fig. 2G View Figure 2 ). Penis guide shorter than parameres, sharp at apex (Fig. 2H, J View Figure 2 ). Parameres articulated with phallobase, distant from each other, strongly widened at apex, with long bristles along parameres (Fig. 2H, I View Figure 2 ). Penis sclerotized, J-shaped, with sharp apex, penis capsule T-shaped and elongated (Fig. 2J, K View Figure 2 ).

Female. Length 1.79 mm, width 1.34 mm. Similar to male. Genitalia with coxites longer than wide, subtriangular, 3.0 × longer than wide; stylus mamiliform with long bristles (Fig. 2M View Figure 2 ). Spermatheca with thick walls, slightly arched, not very striated, and marked by one strong constriction in the middle; with sharp base and truncated apex (Fig. 2L View Figure 2 ).

Material examined.

Reunion Island: First generation from a laboratory rearing (Laboratoire Evolution & Diversité Biologique, Université Toulouse III) initiated from field material collected in November 2011 in Manapany-les-Bains, 19 specimens [DZUP].

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Coleoptera
Family	Coccinellidae
Genus	Nephus