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Lesser diving beetle
Acilius sulcatus
Predaceous diving beetles
(Dytiscidae)
♀
CC-BY 2.0 rights :
Gailhampshire
Oval shaped water beetle with a flat yellow-brown shield with black stripes. The legs are yellow-brown with darker coloured, stronger and flattened rear legs. The ♀ has 4 vertical grooves on her shield and the ♂ has a smooth shield. The ♂ also has sucking toes to attach to the female while mating. It is an able swimmer but can fly as well. ⇔ l. 16-18 mm LA: Various predaceous diving beetles are difficult to separate. ≈ The DYTISCUS MARGINALIS (Great diving beetle) is larger and with a yellow edge around its shield.
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Family(2)
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Size
Shape
Colour
Leg
Back
Feeler
Wing
10-50 mm
Beetle
Six
Shielded
Visible
Shielded
1 LookAlikes (LA):
Great diving beetle
Lesser diving beetle
Gegroefde haarwaterroofkever
Furchenschwimmer
Acilius sulcatus [L.]
Acilius sulcatus [L.]
Acilius sulcatus [L.]
Acilius sulcatus [L.]
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