Phlyctinus callosus
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Author(s): S.E. Thorpe
Source: Wikimedia Commons
Phlyctinus callosus (Schönherr, 1826) - (banded fruit weevil, vine snout weevil)
This weevil is native to South Africa, but has been accidentally introduced into New Zealand (first record 1899) and from there to Australia. It is polyphagous and causes economic damage mainly to the leaves, buds, fruits, roots and trunks of fruit trees (e.g. apple or nectarine) and grapevines. Large populations can defoliate trees. On apple, the feeding damage results in scarring of the fruit surface and rejection of the fruits for export due to quarantine risks.
P. callosus is flightless and nocturnal, feeding in the foliage during the night and hiding in shelters during the day. Adults have to climb the host trees for feeding and can therefore be controlled with trunk barriers. Females lay their eggs on the soil, usually under litter. The emerging larvae burrow into the soil and feed on the roots.
For a review see Dlamini et al. (2019).
- Other images of Phlyctinus callosus (PaDIL - click to enlarge)
head
head
head and pronotum
elytra
posterior end
