Crane flies
Eggs are black in colour, oval, 1mm long and deposited on the soil surface. Larvae are cylindrical, tapering toward the head, and grey-brown in colour. Larvae [...] Larvae have 4 instars (larval stages) an reach 2.5 cm in length when fully grown. Pupae are greyish-brown, and 2.5 cm long. After adults emerge, part of the [...] emerge from the soil in late summer to fall, and females mate and lay 200-300 eggs. Larvae emerge within one week and then feed on roots and crowns of grasses