Ovatus crataegarius Walker Mint aphid

This aphid forms small colonies in spring on young shoots of Crataegus and, sometimes, certain other Rosaceae, but does not cause damage. However, in summer, the aphids infest wild and cultivated mint, and may then be troublesome in kitchen gardens. Apterae are small (1.1-1.9mm long), oval and yellowish-green to green, with moderately long, tapered siphunculi and a pair of prominent, convergent antennal tubercles. In favourable situations, the aphids continue to breed parthenogenetically throughout the year. Elsewhere, the winter is passed in the egg stage on Crataegus.

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