Mesopodagrion

Yu, Xin & Bu, Wenjun, 2009, A Revision of Mesopodagrion McLachlan, 1896 (Odonata: Zygoptera: Megapodagrionidae), Zootaxa 2202, pp. 59-68 : 61

publication ID	https://doi.org/ 10.5281/zenodo.189645
DOI	https://doi.org/10.5281/zenodo.5672097
persistent identifier	https://treatment.plazi.org/id/340A1223-FFAE-D97A-FF6B-FF3EE2F4FDAD
treatment provided by	Plazi
scientific name	Mesopodagrion
status

Treatment

Key to species and subspecies for Mesopodagrion View in CoL

1 Rear of head black ( Fig. 3 View FIGURE 3 a); antehumeral stripe broken at the upper end ( Fig. 4 View FIGURE 4 a); basal half of cerci in dorsal view dilated, twice as wide as distal half ( Figs. 8–10 View FIGURES 8 – 20 ); Bifurcate process shorter than 1/2 length of S10, outer margin concave, smooth ( Figs. 5 View FIGURE 5 a, 8–10); apical lobes of genital ligula bifurcate at base ( Fig. 1 View FIGURE 1 , d & e). ........... M. yachowensis View in CoL

- Rear of head pale or at least pale at upper border ( Fig. 3 View FIGURE 3 b, c); antehumeral stripe complete or interrupted at upper end ( Fig. 4 View FIGURE 4 b–d); basal half of cerci in dorsal view as wide as, or slightly wider than distal half; bifurcate process not shorter than 1/2 length of S10, outer margin inflectional or arched and smooth ( Figs. 5 View FIGURE 5 b–d, 11–15); apical lobes of genital ligula bifurcate distal to base ( Fig. 2 View FIGURE 2 , d & e) ( M. tibetanum View in CoL )............................................................................ 2

2 Pale occipital bar present ( Fig. 4 View FIGURE 4 b); only upper border of rear of head pale ( Fig. 3 View FIGURE 3 b); bifurcate process foot-like in latero-ventral view ( Fig. 18 View FIGURES 8 – 20 ), outer margin inflectional, not smooth ( Figs. 5 View FIGURE 5 b; 11). .............................. M. t View in CoL . tibetanum

- Pale occipital bar absent ( Fig. 4 View FIGURE 4 c, d); rear of head entirely pale ( Fig. 3 View FIGURE 3 c); bifurcate process not foot-like in lateroventral view ( Fig. 19 View FIGURES 8 – 20 ), outer margin arched and smooth ( Figs. 5 View FIGURE 5 c–d, 12–15)........................... M. t. australe View in CoL ssp. nov