Triacanthagyna
Selys, 1883
Three-spined Darners
Species Guides
3- Triacanthagyna caribbea(Caribbean Darner)
- Triacanthagyna septima(pale green darner)
- Triacanthagyna trifida(Phantom Darner)
Triacanthagyna is a of large in the Aeshnidae, distributed across the Americas. Females are distinguished by three prominent spines on the surface of the last abdominal segment, the feature that gives the genus its name. within this genus are commonly referred to as three-spined darners.
Pronunciation
How to pronounce Triacanthagyna: //ˌtraɪ.əˌkænˈθædʒɪnə//
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Identification
Females possess three conspicuous spines on abdominal segment 10, a diagnostic trait for the . Members have large and broad wings relative to body size. -level identification requires examination of abdominal patterning, thoracic markings, and male clasping structures.
Images
Distribution
Americas; records include Colombia and the Caribbean region.
Similar Taxa
- AeshnaSimilar large aeshnid darners, but lack the three abdominal spines on females; abdominal segment 10 is unmodified or bears different structures.
- AnaxAnother large aeshnid with comparable size and wing shape, but females do not possess the characteristic three spines on the terminal abdominal segment.
More Details
Etymology
The name combines Greek 'tria' (three), 'acantha' (spine/thorn), and 'agyna' (female), directly referencing the three spines on the female .