 Mole crickets have three life stages , eggs , nymphs and adults . Most of their life in these stages is spent underground but adults have wings and disperse in the breeding season . They vary in their diet ; some species are vegetarian , mainly feeding on roots , others are omnivores , including worms and grubs in their diet , while a few are largely predacious . Male mole crickets have an exceptionally loud song ; they sing from a sub @-@ surface burrow that opens out into the air in the shape of an exponential horn . The song is an almost pure tone , modulated into chirps . It is used to attract females , either for mating , or for indicating favourable habitats for them to lay their eggs . 
 Mole crickets <a href='got' title='1'><mark>have</mark></a> three life stages , eggs , nymphs and adults . Most of their life in these stages is spent underground but adults <a href='got' title='2'><mark>have</mark></a> wings and disperse in the breeding season . They vary in their diet ; some species are vegetarian , mainly feeding on roots , others are omnivores , including worms and grubs in their diet , while a few <a href='drop_aux' title='3'><mark>are</mark></a>largely predacious . Male mole crickets <a href='got' title='4'><mark>have</mark></a> an exceptionally loud song ; they sing from a sub @-@ surface burrow <a href='null_relcl' title='5'><mark>that</mark></a><a href='uninflect' title='6'><mark>opens</mark></a> out into the air in the shape of an exponential horn . The song <a href='drop_aux' title='7'><mark>is</mark></a>an almost pure tone , modulated into chirps . It is used to attract females , either for mating , or for indicating favourable habitats for them to lay their eggs . 
Mole crickets got three life stages , eggs , nymphs and adults . Most of their life in these stages is spent underground but adults got wings and disperse in the breeding season . They vary in their diet ; some species are vegetarian , mainly feedin on roots , others are omnivores , including worms and grubs in their diet , while a few largely predacious . Male mole crickets got an exceptionally loud song ; they sing from a sub @-@ surface burrow open out into the air in the shape of an exponential horn . The song an almost pure tone , modulated into chirps . It is used to attract females , either for mating , or fa indicating favourable habitats for them to lay their eggs .