Neopanorpa setigera, Wang, Meng & Hua, Bao-Zhen, 2018

Wang, Meng & Hua, Bao-Zhen, 2018, A new species of Neopanorpa with an extremely long notal organ from Sichuan, China (Mecoptera, Panorpidae), ZooKeys 750, pp. 131-140 : 133-136

Neopanorpa setigera sp. n. Figs 1, 2

Type material.

Holotype: CHINA: Sichuan: ♂, Shimian County (29°1.23'N, 102°23.65'E), 2000-2200 m, 02 July 2016, leg. Gui-Lin Hu and Wei Du, ME000285 (NWAFU). Paratypes. 18♂♂16♀♀, same data as holotype, ME000286-ME000320 (NWAFU).

Diagnosis.

The new species can be readily recognized from its congeners by the following characters: body mostly black; wings slightly tinged with brown, wing markings only with greatly reduced apical band and a stripe on the pterostigma; notal process greatly elongated and extended beyond the posterior margin of abdominal tergum VI; postnotal organ well-developed, represented as three hirsute protruded areas on abdominal terga IV–VI respectively; male gonostylus bearing a cluster of long setae on central portion ventrally; female genital plate with a pair of parallel posterior arms slightly longer than axis.

Description of male

(Fig. 1A). Forewing length 13.53 ± 0.40 mm, width 4.48 ± 0.18 mm; hindwing length 12.48 ± 0.38 mm, width 3.23 ± 0.10 mm (n = 10).

Head (Fig. 1C). Vertex and ocellar triangle black. Rostrum yellowish brown with two dark brown longitudinal stripes along clypeus.

Thorax (Fig. 1D). Pronotum black. Meso- and metascutum mostly blackish brown, grading to light brown laterally adjacent to wing base.

Wings (Fig. 1A). Slightly tinged with brown; R2 bifurcated. Wing markings dark brown, mostly absent, only with apical band reduced to obscure markings at apical part of wings and pterostigmal band reduced to a slender stripe on pterostigma.

Abdomen. Terga I–V black (Fig. 1A, E). Abdominal segment VI (A6) black, grading to brown at caudal end, A7-A8 blackish brown, constricted at base (Fig. 1F). Notal process on tergum III triangular at base, extending caudally as a long setiferous stick beyond the posterior margin of tergum VI; postnotal organ represented as three discontinuous hirsute protruded areas on terga IV–VI, respectively (Fig. 1F).

Male genitalia (Fig. 1 G–H). Generally black. Hypandrium with broad basal stalk for nearly half length; basal stalk black on lateral areas and brown mesally; hypovalves slender, tapering toward membranous setiferous apices, extending to middle of gonostylus (Fig. 1G); in lateral aspect, hypovalves expanded dorsally at apical half into broad elliptical lobes, with conical hypandrial processes projected dorsally at basal third (Fig. 1I). Epandrium broad, tapering toward apex, with lateral margins abruptly narrowed at apical third, ended with truncate membranous apex; epandrial lobes subrectangular, yellowish brown (Fig. 1I). Gonostylus stout, strongly concave at outer margin near base (Fig. 1K), furnished with a cluster of black long setae ventrally in central part; median tooth barely raised; basal lobe large, flat, greatly concaved mesally (Fig. 1J, K).

Aedeagal complex (Fig. 2 A–C). Strongly sclerotized. Ventral valves expanded ventrally into broad lobes, tapering toward apices; dorsal valves large, slightly longer than ventral valves (Fig. 2A, B). Paramere Y-shaped, with very long basal stalk; the stalks fused basally as large subrectangular frame; paramere forked distally into ventral branch and dorsal branch; ventral branch slender basally but broad-lobed, membranous apically and extended to the middle of ventral valves (Fig. 2A); dorsal branch slender, arc-shaped (Fig. 2B); lateral process greatly developed, broadly expanded in the same length with ventral valves, curved ventro-mesally, with apex rounded and projected distally; dorsal process large, auriculate (Fig. 2 A–C).

Description of female

(Fig. 1B). Forewing length 14.43 ± 0.40 mm, width 3.34 ± 0.12 mm; hindwing length 13.28 ± 0.35 mm, width 3.18 ± 0.11 mm (n = 10). Same pattern as in the male. Female with more extensive wing markings. In forewings, apical band more extensive with pterostigmal band represented as a wide stripe at pterostigma and three little discrete spots lining diagonally. Abdomen black.

Female genitalia. Subgenital plate (Fig. 2D) long elliptical, with deep V-shaped emargination at apex, central part and median lateral margin blackish brown, the remainder yellowish brown, bearing long setae along margins. Genital plate (Fig. 2E, F) with axis extending anteriorly beyond main plate for half length, forked slightly proximally; posterior arms greatly developed, spatulate, extended caudally in parallel, slightly longer than axis, strongly constricted near base, rounded at apices; in lateral aspect, posterior arms greatly expanded ventrally at base and axis slightly curved dorsally.

Distribution.

China (Sichuan).

Etymology.

The specific epithet is derived from the Latin, setigera meaning setiferous, referring to the cluster of long dense setae on the male gonostyli.

Remarks.

N. setigera sp. n. resembles N. nigritis Carpenter, 1938 from Sichuan in black body and absence of wing markings. However, the extremely long notal organ of N. setigera sp. n. makes it easy to distinguish from N. nigritis . In addition, N. choui Cheng, 1949 in Sichuan has the similar lengthened notal organ. However, these two species differ greatly in body coloration. N. choui is yellowish brown, while N. setigera sp. n. is mostly black.

Habitat.

Adult specimens were captured on lower broad-leaved herbs or shaded vegetation under trees in lush evergreen forests. The environment is enclosed and moist.