[1], Collecting adults was an only moderately successful method. Cockchafers lay their eggs into soil in the summertime, roughly in June/July and these eggs then hatch into the fat, white larvae. Most bats shout sounds from their mouths but the greater horseshoes unusual-shaped ‘nose-leaf’ allows them to concentrate the sounds really effectively like the foil behind a torch bulb. Over 70 species found in the UK, from all the native trees to the common non-natives. The verse dates back to the Thirty Years' War in the first half of the 17th Century, in which Pomerania was pillaged and suffered heavily. The grubs develop in the earth for three to four years, in colder climates even five years, and grow continually to a size of about 4–5 cm, before they pupate in early autumn and develop into an adult cockchafer in six weeks. Larvae: are considered an agricultural pest when in large numbers, as they feed on vegetable and grass roots. What do Curl Grubs Eat? Every two years, the Royal Entomological Society organises the week, supported by a large number of partner organisations with interests in the science, natural history and conservation of insects. Maikäfer flieg! Your father is at war The charming, but alarmingly large, cockchafer spends late spring sensing for the perfect mate with its fanned antennae. Mostly made up of the hand bones – giving excellent control and dexterity in flight in tight places – try waggling your fingers to see how their wings can move. Read more below. In some areas and times, cockchafers were served as food. There is a larger cycle of around 30 years superimposed, in which they occur (or rather, used to occur) in unusually high numbers (10,000s). England at The Lindens, 86 Lincoln Road, Peterborough PE1 2SN. The grubs (sometimes called rookworms as they are prized by corvids) can devastate cereal crops. Adults of the common cockchafer reach sizes of 25–30 mm; the forest cockchafer is a little smaller (20–25 mm). The adult beetles emerge and are active between May and July. Although they mostly prefer organic food sources, occasionally, cockroaches do give in to inorganic indulgences, such as nylon and other synthetic fabric materials. She may do this several times until she has laid between 60 and 80 eggs. The cockchafer should not be confused with the similar European chafer (Rhizotrogus majalis), which has a completely different life cycle, nor with the June beetles (Phyllophaga spp. The cockchafer is featured in a German children's rhyme similar to the English Ladybird, Ladybird: Maikäfer flieg... Greater horseshoe bats can live for up to 30 years due to their large amounts of torpor and low numbers of young (one pup per year). The larvae spend their lives living within the soil, feeding on plant and grass roots. golf, cricket and bowling). This website uses Google Analytics to collect anonymous information such as the number of visitors to the site, and the most popular pages.