Great diving beetle
Dytiscus marginalis
Predaceous diving beetles
(Dytiscidae)
♀ swimming.
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Gailhampshire
Oval shaped dark brown water beetle, yellow edges along the neck and back shield, yellow legs that are well adapted to swimming. The ♂ has a smooth shield, ♀has a ribbed shield. The ♂ also has sucking feet used to control the ♀ while mating. Able swimmer and flyer, walking is awkward. Hunts for insects, larvae and small fish. ⇔ l. 27-35 mm Submerged, colours are hard to see making it difficult to distinguish some of the species.
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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):
Lesser diving beetle
Great diving beetle
Geelgerande watertor
Gelbrandkäfer
Dytique bordé
Distico marginato
Escarabajo buceador
Dytiscus marginalis [L.]
Окаймлённый плавунец
Dytiscus marginalis [L.]
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