|Ophiogomphus cecilia (Fourcroy,
1785), the Green Snaketail, is a species of dragonfly in family Gomphidae.
It is a large dragonfly with length around 50-60mm. It is found in Austria,
Belarus, Bulgaria, China, the Czech Republic, Denmark, Estonia, Finland,
France, Germany, Hungary, Italy, Latvia, Lithuania, Luxembourg, Moldova,
Republic of, Portugal, Romania, Russia, Slovakia, Sweden, Switzerland,
Turkey, and Ukraine.
The Green Snaketail is a very pretty,
easily recognisable dragonfly; it combines three colours: its eyes, head
and thorax are green (which becomes deeper and brighter with age), while
its abdomen is black and yellow. It's a Central and Eastern European species
with a few scattered populations further West (in France, Germany, and
e.g. on the river Po in Italy). The species' favourite habitat consists
of relatively slow-flowing rivers and brooks with a gravelly or sandy bottom,
where the males occupy a sandy stretch of river bank (or a sun-exposed
rock on the bank) while they wait for the females to come down to the water.
The females seem to prefer to keep themselves away and are seldom seen
at the water.
Flight season from June to October,
but highest numbers in July.
IUCN Red List Category & Criteria
as Least Concern. The species is widespread in Europe and parts of North-western
Asia. The species was declining in the eighties and nineties of last century
but is recently increasing due to better water management.