Megadrypta mirabilis Sciaky & Anichtchenko, 2020

Megadrypta mirabilis Sciaky & Anichtchenko, 2020 View in CoL

Figs 2 B View Figure 2 , 4 View Figure 4 , 6 B Chinese vernacular name: 巨逮步甲 View Figure 6

Megadrypta mirabilis Sciaky & Anichtchenko, 2020: 526. View in CoL View Cited Treatment

Material examined.

Holotype: China • male, labeled “ CHINA. Guangdong, Ruyuan, Nanling Nature Reserve , 24.92579, 113.01638 ”; “ 1021 m, 2007.6. 18 – 21 Huang Hao ”; IZAS GoogleMaps . Paratype: China • 1 male, labeled “ CHINA. Guangxi Prov., Cenwanglao Shan Nature Reserve ”; “ 2007.8. 5 day, Liu Chunxiang coll. ”; IZAS .

Non-type materials.

China • 1 female, labeled “ CHINA: Hunan, Mt. Mangshan, Jiangjunzhai [in Chinese ], 2020. VII- 28, 1200 m, Leg. Yuzhou Huang ”; CHYZ • 1 female, labeled “ CHINA: Guangxi, Laibin, Jinxiu County, Changtong Township, Guitian Village , 2024. VI- 1, leg. Chunfu FENG ”; CCJH • 1 female, labeled “ Guangdong, Nanling , 2017-8 ” [in Chinese]; CCJH • 1 male, labeled “ CHINA: Guizhou, Leishan County, Mt. Leigongshan, Xiannütang , 1555 m ” [in Chinese]; “ 2024. V. 31, 26.37303146 N 108.19808469 E, Leg. Ye ”; CYXH GoogleMaps .

Diagnosis.

Dorsal surface nearly black, with very weak bluish luster; femora dark brown to piceous; mouth parts, tibiae, and tarsi sometimes lighter. Mentum with anterior margin straight at middle. Elytra narrowed toward shoulders; elytral striae incised with large punctures (much smaller than interval width). Median lobe of aedeagus in lateral view equally broadened before apical third and then abruptly narrowed; ventral margin strongly curved before apex.

Supplementary description.

BL 13.9–16.1 mm (15.0 mm in the holotype); dorsal and ventral surface nearly black, with very weak bluish luster; mouth parts brown; femora dark brown to piceous; tibiae and tarsi sometimes lighter (Fig. 2 B View Figure 2 ). Head: labrum trilobate; medial lobe slightly extended anteriorly; anterolateral angles rounded-obtuse, sparsely pubescent near anterior margin; clypeus impunctate and pubescent; vertex densely and coarsely punctate; temporae slightly shorter than eyes, well tumid behind eyes, sparsely and finely pubescent and punctate. Pronotum: PL / PW 1.62–1.68; lateral margins gradually sinuate twice, behind anterior angles and before posterior angles; sides flattened from above and a little extended laterally near middle, median region elevated. Elytra: EL / EW 1.44–1.50; base with 7–8 parascutellar pores, strongly narrowed at shoulders; elytral striae incised with large punctures (much smaller than interval width). Male genitalia: median lobe of aedeagus relatively stout (Fig. 4 View Figure 4 ), equally thickened before apical third and then abruptly narrowed in lateral view, with ventral margin strongly curved before apical lamella (Fig. 4 A, D View Figure 4 ); same in dorsal view, with apical lamella short (ALL / ALW 0.46–0.51), obtuse and rounded; endophallus with a central sclerite, hook-shaped in right lateral view (Fig. 4 A View Figure 4 ), with blurred border in ventral view (Fig. 4 B View Figure 4 ).

Distribution.

This species is widely distributed in the Nanling Area of southern China (Fig. 1 View Figure 1 ), where it is currently recorded from four provinces: in southern Guizhou from Mount Leigongshan (new provincial record); in southern Hunan from Mount Mangshan (new provincial record); in north Guangxi from Mounts Maoershan, Dayaoshan, and Cenwanglaoshan; and in northern Guangdong from the Nanling Natural Reserve.