well, books tell me that females have spots on the upper wing...
I don't think that quite right
They are simply called a male or a female butterfly.
A young butterfly is called a caterpillar, larva, chrysalis or pupa
The eggs would not hatch if not fertilised by a male. A female butterfly will lay her eggs only after being fertilised by a male butterfly.
A male butterfly is called a "butterfly." Butterflies do not have separate names for males and females like some other animal species. Both male and female butterflies are simply referred to as butterflies.
The eggs would not hatch if not fertilised by a male. A female butterfly will lay her eggs only after being fertilised by a male butterfly.
The color is Blue
The male Monarch has a black spot on each wing the female does not.
the male is bigger than the female
To attact the female for mating
Butterflies do not fall in love. Male butterflies are attracted to female butterflies through scent and sight. They pair/mate and the male goes to search for another female soon after. They have an instinct to pair/mate but never stay around one specific butterfly.
One way is that a male has two small dots on their bottom wing, while a female doesn't.
female moth lays the eggs on the mulberry leaves