description Orthetrum albistylum Overview
Orthetrum albistylum, commonly known as the white-tailed skimmer, is a dragonfly belonging to the family Libellulidae. It is widely distributed across the Palearctic region, with populations extending throughout central and southern Europe and reaching as far east as Japan and China. Mature males are highly recognizable due to the striking white pruinose coating that develops over their abdominal appendages. This dragonfly favors open, still-water habitats such as ponds, lakes, and slow-moving rivers with abundant surrounding vegetation.
help Orthetrum albistylum FAQ
What does the scientific name Orthetrum albistylum mean?
Orthetrum albistylum is the scientific name for the white-tailed skimmer, which directly refers to its distinctive white appendages. The specific epithet 'albi-' denotes white, highlighting the most identifying physical trait of the mature male of the species. This naming convention perfectly describes its unique appearance.
Where does the white-tailed skimmer live?
The white-tailed skimmer is native to the Palearctic region, commonly found across Europe and extending through Asia to Japan. They heavily favor habitats with still or slow-moving water, such as ponds, lakes, and sluggish canals. They are often seen basking on the warm rocks or bare soil along the shoreline.
How can you tell a male white-tailed skimmer from a female?
Mature males of the Orthetrum albistylum species develop a striking bluish-grey pruinescence over their thorax and abdomen, alongside those highly conspicuous white abdominal appendages. Females, on the other hand, generally retain a yellowish-brown coloration with darker dorsal stripes throughout their lives. This makes them relatively easy to differentiate.
How does the white-tailed skimmer hunt for prey?
Like other dragonflies, the white-tailed skimmer is an aggressive, visual predator that catches smaller insects directly in mid-air. They are known as perchers, often sitting flat on the ground or on a rock, darting out rapidly to grab a passing fly. After catching their prey, they usually return to the exact same perch to consume it.
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