Pyrrhalta viburni (Paykull, 1799)
Taxonomy: Polyphaga > Chrysomeloidea > Chrysomelidae > Pyrrhalta > Pyrrhalta viburni
Images
Source:
Peter Hodge
Description
Size: 4.5-6.5mm
Basic colour: Yellow-brown, sometimes elytra with a reddish-brown tinge.
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour, only slightly wider than the head (which distinguishes it from Galerucella spp.)
Leg colour: As basic colour
Basic colour: Yellow-brown, sometimes elytra with a reddish-brown tinge.
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour, only slightly wider than the head (which distinguishes it from Galerucella spp.)
Leg colour: As basic colour
Palaearctic (ssp. annulicornis in Japan); introduced into Canada.
Biology
Status: Fairly common in England, sparse in Wales and Ireland, one old record from Scotland.
Habitat: Various
Host plant: Viburnum spp.
Overwintering: As eggs in cavities chewed into stems of host plants and covered by a hard, dried cap of mucus and faeces or regurgitated food.
Food: Adults and larvae both on stems and leaves.
Other notes: Predated by several species of pentatomid shieldbug; eggs predated by the ant Myrmica sabuleti and damaged by the mite Thyreophagus entomophagus. Adults eaten by coal tit and bullfinch. Eggs parasitised by severl hymenopteran species. Adults infected (fatally) by the fungus Beauveria bassiana.
Habitat: Various
Host plant: Viburnum spp.
Overwintering: As eggs in cavities chewed into stems of host plants and covered by a hard, dried cap of mucus and faeces or regurgitated food.
Food: Adults and larvae both on stems and leaves.
Other notes: Predated by several species of pentatomid shieldbug; eggs predated by the ant Myrmica sabuleti and damaged by the mite Thyreophagus entomophagus. Adults eaten by coal tit and bullfinch. Eggs parasitised by severl hymenopteran species. Adults infected (fatally) by the fungus Beauveria bassiana.
Articles
Alexander, K.N.A. (2011). The distribution and status of Pyrrhalta viburni (Paykull) (Chrysomelidae) in Scotland. The Coleopterist 20(2): 96.