Crioceris duodecimpunctata L Twelvespotted asparagus beetle

This species is a pest of asparagus in continental Europe but is not recorded from the British Isles. In spring, adults of the first generation attack the emerging asparagus shoots; mating and egg laying occur at about the flowering stage, the eggs being deposited at the tips of the fronds. Larvae feed on the developing asparagus berries for approximately 10 days and then pupate in the soil, each in an earthen chamber. There are two

Fig. 216 Asparagus beetle, Criocerisasparagi (x10).

Fig. 217 Asparagus beetle, Crioceris asparagi: (a) eggs; (b) larva (x7.5).

Fig. 217 Asparagus beetle, Crioceris asparagi: (a) eggs; (b) larva (x7.5).

generations annually. Adults (5-6 mm long) are mainly orange-red, with 12 prominent black spots on the elytra. Larvae (up to 8 mm long) are yellow, with a black head.

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