Two new crane fly species of the subgenus Vestiplex Bezzi, 1924 (Diptera, Tipulidae, Tipula) from Yunnan and Sichuan, China, with a key to species in the immota species group

Abstract

Two new crane fly species, Tipula (Vestiplex) gongdangensissp. nov. and T. (V.) dechangensissp. nov. are described and illustrated based on materials collected in the Yunnan and Sichuan provinces, China. A key is provided to distinguish males of the new species from those of other species in the T. (V.) immota Alexander, 1935 species group which is proposed here for the first time.

Four new crane fly species of the subgenus Vestiplex (Diptera: Tipulidae: Tipula) from Tibet and Yunnan, China

“…Its subgeneric characters were summarized by Alexander (1935Alexander ( , 1965, Men et al (2021a) and Starkevich et al (2020).…”

“…A total of 76 species and one subspecies of Vestiplex are documented in China, which are mainly associated with the Tibetan Plateu (Tibet, Sichuan, Yunnan, Qinghai and other provinces) (Oosterbroek 2021). Among them, 20 species were described in the last six years (Men et al 2017(Men et al , 2021a(Men et al , 2021b(Men et al , 2021cStarkevich et al 2019Starkevich et al a, 2019bRen et al 2021 andYang et al 2021).…”

Taxonomic Revision of Tipula (Vestiplex Bezzi) Crane Flies (Diptera, Tipulidae) in Taiwan with Descriptions of Six New Species

“…Elevation range in Taiwan. Adults were collected at altitudes ranging from 2100 m to 3400 m. horn or spine; an inner gonostylus terminating into extended upper beak; a dorsal crest nearly rectangular or angular with a blackened ridge generated from the dorsal corner and a black rim suffuse along the dorsal surface; a lower beak absent; sternite 9 with a short dorsal lobe of A9s, fused basally with a ventral lobe; and adminiculum basally flattened and dilated with a median portion distinctly protruded [16].…”

“…The female is known only for T. (V.) dechangensis and characterized by a smooth cercus, without visible serration, and a short, blackened, plate-shaped hypovalva [16]. 63 and 64).…”

“…The coquillettiana, erectiloba, excisa, leucoprocta, nubeculosa, scripta, and virgatula groups are characterized by tergite 9 forming a shallowly concave saucer ( [6][7][8][9][10][11]). Another 10 species groups are characterized by a longitudinally divided tergite 9, along with features such as the shape of the ventral portion of tergite 9, the shape of the appendages of sternite 9, and other features discussed below: himalayensis species group (Alexander [12,13] and Edwards [14], as a subgroup of avicularia); avicularia, divisotergata, and subtincta [10]; arisanensis and coxitalis [4] (as members of T. (Oreomyza)); bicornigera, deserrata, and eurydice [15] and immota [16].…”