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Eggs
Eggs are 1 mm long, reddish-orange and in rows of 2-16 on the underside of leaves.
Larvae
There are four larval instars, which can be distinguished by their head capsule width (Haye and Kenis, 2004). The last instar larva is 8-10 mm long and has a head capsule width of 1.3-1.5 mm. Larvae resemble slugs with swollen orange, yellowish or brownish bodies and black heads. The anus is situated on the dorsal area, so that the excreta accumulates above the larva, which carries a viscous fecal shield on its back that gives it a repulsive aspect (Fox-Wilson, 1943).
Pupae
Pupae are orange-red and found in a 'silken', white cocoon in the soil.
Adults
The adult is about 6-8 mm long. It is bright red, with the exception of the head, antennae, legs and underside of the body, which are black (Fox-Wilson, 1943).

Related invasive species

  • Lilioceris lilii

Related Farm Practice

  • Soil
Impact

L. lilii is a Eurasian chrysomelid beetle that was first found in Quebec, Canada, in 1943, from where it has spread to several Canadian Provinces, and Vermont and Maine in the USA. It was also reported in Boston, Massachusetts, in 1992, and it is now found in several New England States. It is also alien and invasive in the UK and, probably, in Northern Europe. The beetle most probably spreads with the sale and movement of potted lilies, flowering bulbs or cut flowers. In countries where it is invasive, it is a serious pest of cultivated lilies and fritillaries. Without control methods, leaves and flowers are totally defoliated by larvae. In North America, it also represents a threat to native lilies.

Has Cabi datasheet ID
30800
Hosts


Larvae develop on cultivated and wild lilies (Lilium spp.), Fritillaria spp., Cardiocrinum giganteum and Maianthemum canadense (Lesage, 1983;Livingston, 1996;Cox, 2001;Haye and Kenis, 2004;Ernst et al., 2007). Other host plants for larvae mentioned in the literature must be regarded as dubious and may result from misidentifications of adults or larvae. Adults will accept a wider range of food plants, especially in laboratory rearing (Livingston, 1996).

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