Nigrimacula laminata Cui, Liu & Shi, 2021

Cui, Peng, Liu, Qing & Shi, Fu-Ming, 2021, Notes on the genus Nigrimacula Shi, Bian & Zhou, 2016 (Tettigoniidae: Meconematinae: Meconematini) from Yunnan, China with two new species, Journal of Natural History 55 (15 - 16), pp. 969-977 : 971-973

publication ID

https://doi.org/ 10.1080/00222933.2021.1927230

persistent identifier

https://treatment.plazi.org/id/03DE8784-9812-FFED-633D-FA33F5D9FA70

treatment provided by

Plazi

scientific name

Nigrimacula laminata Cui, Liu & Shi
status

sp. nov.

Nigrimacula laminata Cui, Liu & Shi View in CoL sp. nov. ( Figures 1–2 View Figure 1 View Figure 2 ; Map 1)

Types

Holotype. Male, Maidi, Yangbi , Yunnan, 25°46 ʹ N, 99°56 ʹ E, 1886 m, 29 August 2020, coll. Peng Cui. GoogleMaps

Paratype. 1 female, same data as holotype GoogleMaps .

Diagnosis

The new species can be distinguished from other species of the genus by the male cercus that has a lamellate and approximately rectangular process near middle of ventral surface at inner side, in basal third with a lamellate process on dorsal surface of inner margin; and by the female subgenital plate that has the basal half broadly rectangular, the apical half narrowing and the posterior margin nearly straight.

Description

Male. Body small. Fastigium verticis conical with a longitudinal sulcus, apex rounded. Eyes nearly globular and protruding forward. Apical segment of maxillary palpus slightly longer than subapical segment, apex slightly enlarged.

Pronotum with anterior margin nearly straight, posterior margin obtusely rounded ( Figure 1 View Figure 1 (a)); lateral lobe longer than high, ventral margin slightly undulated and humeral sinus clearly marked ( Figure 1 View Figure 1 (b)). Thoracic auditory spiracle exposed, peanut-shaped ( Figure 1 View Figure 1 (b)). All femora unarmed on ventral surface. Procoxa with a short spine; protibia with 5 pairs of long spines on ventral margins, of which the apical pair is shortest; tibial tympana open on both sides. Mesotibia with 5 pairs of long spines on ventral margin, of which the apical pair is shortest. Metatibia with 22–25 spines inner and outer dorsal surface, as well as 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs.

Tegmen with basal half broader than apical half, anterior and posterior margins nearly parallel, apex bluntly rounded and extending beyond apex of metafemur; hind wing slightly protruding beyond tegminal apex by 1.5 mm.

Posterior margin of tenth abdominal tergite slightly concave. Left and right cerci symmetrical and relatively long, with a lamellate and approximately rectangular process near middle of ventral surface at inner side; basal third with a lamellate process on dorsal, inner margin and its apex bluntly rounded; apical third gradually flattening, slightly curved dorsad, and apex obtusely rounded ( Figure 1 View Figure 1 (c–e)). Subgenital plate longer than broad, with a reversed V-shaped ridge in middle of ventral surface bulging dorsad; posterior margin feebly concave. Styli elongated on apical lateral angles of subgenital plate ( Figure 1 View Figure 1 (d)). Genitalia completely membranous.

Female. Appearance is similar to that of male. Cercus conical, apex acute. Ovipositor shorter than metafemur, with basal area stout, apical half moderately curved dorsad; dorsal and ventral margins smooth; dorsal valvulae shorter than ventral valvulae, apices of ventral valvulae hook-shaped ( Figure 1 View Figure 1 (f)). Subgenital plate in basal half broadly rectangular, in apical half narrowing and posterior margin nearly straight ( Figure 1 View Figure 1 (g)).

Colouration

Body yellowish green (green when alive; Figure 2 View Figure 2 ). Fastigium verticis blackish brown, dorsum of head with a light brown stripe along midline; pronotum with a wide yellowish brown stripe along midline turning pale in metazona; pronotum with a pair of blackish brown spots in anterior area and in anterior area of metazona, centre of posterior margin black.

Measurements (mm)

Body: ♂ 8.0, ♀ 10.0; pronotum: ♂ 3.1, ♀ 3.1; tegmen: ♂ 14.1, ♀ 14.5; metafemur: ♂ 7.9, ♀ 8.0; ovipositor: ♀ 6.6.

Distribution

China (Yunnan).

Etymology

The name of this new species is derived from the Latin word ‘ lamina ’ meaning leaf, thin plate, etc. It indicates that the processes of the male cercus are lamellar.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tettigoniidae

Genus

Nigrimacula

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