Megalestes major Selys, 1862

Yu, Xin & Xue, Junli, 2020, A review of the damselfly genus Megalestes Selys, 1862 (Insecta: Odonata Zygoptera: Synlestidae) using integrative taxonomic methods, Zootaxa 4851 (2), pp. 245-270 : 261

Megalestes major Selys, 1862

( Figs. 3h ; 4h ; 5e, r ; 6e )

Megalestes major: Asahina, 1985b: 2–5 , 14–16, figs. 1–10 [ India; Nepal]; Gyeltshen et al. 2017: 593, figs. 4c–d [ Bhutan].

This is the type species of Megalestes , the only species that has an inner lateral tooth in the middle of the cerci ( Fig. 3h ). Its paraprocts are almost spherical, covered with dense setae, with an acute dorsal base tooth pointed directly upwards ( Fig. 6e ). Megalestes major is distributed in India, Nepal, and Bhutan, and it only occurs on the west side of the Himalayas.

Figures

FIGURE 3. Caudal appendages of males (dorsal view). a) australis; b) irma, paratype; c) distans, from Yaan, Sichuan; d) distans from Dashahe, Guizhou; e) heros; f) omeiensis, paratype; g) kurahashii; h) major; i) haui; j) “palaceus”; k) micans, bd: basal disk; l) “chengi”; m) riccii; n) “maai”; o) “tuska,” from Damingshan, Guangxi; p) “tuska,” from Jinxiu, Guangxi. (Scale bar = 0.5 mm).

FIGURE 4. Caudal appendages of males (lateral view). a) australis; b) irma, paratype; c) distans, from Yaan, Sichuan; d) distans from Qingchengshan, Chengdu, Sichuan; e) heros; f) omeiensis, paratype; g) kurahashii; h) major; i) haui; j) “palaceus”; k) micans; l) “Chengi,” paratype; m) riccii; n) maai; o) tuska, from Damingshan, Guangxi; p) tuska, from Jinxiu, Guangxi. (Scale bar = 0.5 mm).

FIGURE 5. Genital ligula of males (lateral view) (a–m) and ventral view (n–ab). a) australis; b) distans; c) heros; d) omeiensis, paratype; e) major; f) irma, paratype; g) “palaceus”; h) haui; i) “Chengi”; j) maai; k) riccii; l) tuska; m) micans; n) australis, Hr: horn; o) distans, Tlb: terminal lateral lobe; p) heros; q) omeiensis, paratype; r) major; s) irma, paratype; t) kurahashii; u) “palaceus”; v) haui; w) micans, from Jinping, Yunnan; x) “Chengi”; y) maai; z) riccii, Blb: basal lateral lobe; aa) tuska, Mlb: middle lateral lobe; ab) micans, from Fengyangshan, Zhejiang. (Scale bar = 0.2 mm).

FIGURE 6. Line drawing of male paraprocts (lateral view). a) australis; b) distans; c) gyalsey; d) kurahashii; e) major; f) haui; g) heros; h) omeiensis; i) micans; j) micans; k) riccii; l) irma.