Rhian said adult Atlas moths don't eat at all during their two weeks of adulthood because they don't have a mouth.
Neil Gale, who breeds butterflies at the butterfly house, said female Atlas moths are "egg machines" that attract males by secreting a pheromone.
Making friends with an Atlas Moth
I could see how he gets used to this life.
Student Anna Harper, aged 18, balanced an atlas moth, the world's largest species of moth, in front of her face, which she said was "exhilarating".
The Sherbourne Fields pupils have also been set an activity by Mr Ireland to breed their own Atlas Moths and he will visit again later in the year to see how they're getting on.
The atlas moth is normally found in the humid jungles of south-east Asia.
As fearsome as the atlas moth looks, it does all its feeding at the larval stage and the adults have no mouth.
The largest flying specimen at Magic Wings is the Atlas Moth
, which can reach a wingspan of more than 10 inches.
EARLY DEBUT: A giant Atlas moth
has hatched more than a month early in North Wales - indicating a warm Spring.
BIGGEST winged insect is the Atlas Moth
, found in China, with a wingspan of 12 inches.
See the world's largest moth, the Atlas moth
- with a wing span wider than a sparrow's - when you visit The Living Rainforest this month in Berkshire.
But what the lovelorn giant Atlas moth
really fancies is a fling with a mate - she only has 24 hours to attract a lover before she dies.
For the unusual menagerie at Ysgol San Sior includes Rhino beetles, giant African millipedes, Malaysian jungle nymphs, Death's Head hawkmoths and Atlas moths
, the largest moths in the world.
The mini-beasts were brought to the school by Gareth Ireland from Paradise a and included giant atlas moths
, giant owl butterflies, mantises and leaf insects.