Taken 27-Feb-15
Visitors 9


15 of 34 photos
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Categories & Keywords

Category:Animals
Subcategory:Insects
Subcategory Detail:
Keywords:Australia, Diplacodes haematodes, Dragonfly, Macro, Scarlet Percher, Wildlife
Photo Info

Dimensions4384 x 2192
Original file size1.52 MB
Image typeJPEG
Color spacesRGB
Date taken27-Feb-15 17:08
Date modified14-Mar-15 22:28
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS 5D Mark III
Focal length150 mm
Max lens aperturef/2.8
Exposure1/200 at f/18
FlashFired, compulsory mode
Exposure bias0 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 400
Metering modePattern
Diplacodes haematodes

Diplacodes haematodes

Diplacodes haematodes (Scarlet Percher)

IUCN Status: not yet assessed

We have to be somewhat mad to get into dragonflies. All the obvious things like colour and pattern don't work for identification, partly because the males and females vary in form, and partly because teneral they change colouration as they mature. So you end up looking for things like the number and shape of the cells in the wings or other minor markings that are stable.

This is a teneral male. When they first burst out of their nymph shells as new dragonflies, their colouration is a yellow brown. As adults, the males are a vivid, stunningly bright red: hence the common name.

So just to show you how crazy identifying dragonflies can be, if you look through the wing at the body, you can see two small dark spots, one above the other. The bottom spot is the "metastigma" (one of the openings that allow air/oxygen into the insect). The top spot is just a marking, but it is useful in identifying this species.