Methods of investigating the bionomics of the common crane-fly, tipula paludos a meigen, together with some results

SUMMARY 1 Full-grown larvae of Tip 75 per cent of the available eggs were laid by the females; 46 per cent of the eggs laid hatched, and 46 per cent of the larvae survived the fist two instars. In other words, under the conditions of the experiment, on the average, one female crane-fly laid 200 eggs, 92 larvae hatched and 44 survived the first two instars.