Corn rootworm
the begin of July, with the presence of larvae peaking around the middle of June. The whitish-coloured larvae move around in the soil, feeding on the maize [...] hard to find in the soil, as this stage lasts only a few days. The adults, 5-6 mm long, are dark yellow in colour and there are three black stripes on the [...] They emerge throughout the summer period with a peak between the end of June and the middle of July. The adults may mate several times during their lifetime