Post by johnnyboy on Aug 3, 2021 15:19:01 GMT -8
Following on from my previous post I thought I'd post some giant damselflies. The Giant Bannerwing, Polythore gigantea, I caught myself
in the Monteverde Cloud Forest in Costa Rica in 1987, wingspan about 100mm
The Giant Helicopter Damselfly (aka Forest Giants) Megaloprepus caerulatus pair, female 161mm wingspan, male 166mm wingspan as measured using digital callipers. These are quite large sizes, average is around 150mm plus but larger individuals tend to occur in particular areas, the Costa Rican specimens are generally larger than those from Panama for example.
The Mecistogaster linearis male is 136mm in overall body length.
While in Costa Rica I wasn't fortunate enough to see Megaloprepus in flight but one of my friends did and described it as mesmerising, they really do give the impression that their wings are rotating like a helicopter.
Giant Bannerwing Damselfly imgur.com/gallery/uVHm3Ro
Giant Helicopter Damselflies from Costa Rica imgur.com/gallery/IzjoFhp
Giant Narrow Winged Damselfly pair imgur.com/gallery/qHctCPF
Johnny
in the Monteverde Cloud Forest in Costa Rica in 1987, wingspan about 100mm
The Giant Helicopter Damselfly (aka Forest Giants) Megaloprepus caerulatus pair, female 161mm wingspan, male 166mm wingspan as measured using digital callipers. These are quite large sizes, average is around 150mm plus but larger individuals tend to occur in particular areas, the Costa Rican specimens are generally larger than those from Panama for example.
The Mecistogaster linearis male is 136mm in overall body length.
While in Costa Rica I wasn't fortunate enough to see Megaloprepus in flight but one of my friends did and described it as mesmerising, they really do give the impression that their wings are rotating like a helicopter.
Giant Bannerwing Damselfly imgur.com/gallery/uVHm3Ro
Giant Helicopter Damselflies from Costa Rica imgur.com/gallery/IzjoFhp
Giant Narrow Winged Damselfly pair imgur.com/gallery/qHctCPF
Johnny
