Mexican species
| Highland Flatwing (Heteragrion tricellulare) | |||
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| Subspecies | |||
| Distribution | S Mexico and Guatemala (Alta Verapaz, Baja Verpaz). | ||
| Endemic status | Semi-endemic to Guatemala, Mexico. | ||
| Comment | 2026-10-20: Added to Veracruz, Mexico (link). | ||
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