For the unrelated giraffe weevil found in Madagascar, see Trachelophorus giraffa.
Lasiorhynchus barbicornis
Male (left) and female (right) New Zealand giraffe weevil
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Coleoptera
Superfamily:
Curculionoidea
Family:
Brentidae
Subfamily:
Brentinae
Genus:
Lasiorhynchus
Species:
L. barbicornis
Binomial name
Lasiorhynchus barbicornis
(Fabricius, 1775)
The New Zealand giraffe weevil, Lasiorhynchus barbicornis, is a straight-snouted weevil in the subfamily Brentinae, endemic to New Zealand. L. barbicornis is New Zealand's longest beetle, and shows extreme sexual dimorphism: males measure up to 90mm, and females 50mm, although there is an extreme range of body sizes in both sexes. In males, the elongated snout (or rostrum) can be nearly as long as the body. Male giraffe weevils use this long rostrum to battle over females, although small males can avoid conflict and 'sneak' in to mate with females, sometimes under the noses of large males. The larval weevils tunnel into wood for at least two years before emerging, and live for only a few weeks as adults.
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