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Hummingbird hawk-moth

Macroglossum stellatarum

Conservation status IUCN: Not evaluated· NE
Hummingbird hawk-moth (Macroglossum stellatarum)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Macroglossum is “long tongue”, from makrós and glôssa: unrolled, the proboscis is over two and a half centimetres and reaches the bottom of flowers no other day-flying butterfly can exploit. Stellatarum means “of the stitchworts”, the star-flowered plants it lays on. The name of the family, Sphingidae, comes instead from the pose the caterpillar takes when disturbed: reared on its hind legs, motionless, with the air of an Egyptian sphinx.

Facts

Group
Insects · Insecta
Order
Butterflies and moths
Habitat
Gardens, flowering meadows, sunlit walls
Range
Europe, Asia, North Africa; it migrates as far as Scandinavia
Size
4–5 cm wingspan
Diet
Nectar, taken hovering before the flower
Lifespan
Several months; it overwinters as an adult in crevices

Characteristics

  • 01

    It beats its wings seventy to eighty times a second, with an audible hum.

  • 02

    It hangs still before the flower and never lands on it.

  • 03

    It flies by day, unlike almost all other hawk-moths.

What sets it apart

It is mistaken for a hummingbird by anyone seeing it for the first time, and the confusion has reached the newspapers more than once — impossible in Europe, where hummingbirds do not exist. The resemblance is a textbook case of convergence: two remote animals solving the same problem — staying still in front of a flower while drinking — and arriving at the same shape. It also has a surprising memory for places: it returns to the same flowerbeds at the same hour for days, and recognises learned flowers even when the light changes, which means it possesses a form of colour constancy.

Next species

Large white butterfly

Pieris brassicae