I had came across an insect near my backyard in India(Kerala). I haven't seen this one before and I searched web to find out what insect is this and found its image which saying its a "Giraffe Weevil" (Trachelophorus giraffa). The link below says that this insect is endemic to Madagascar.
They are herbivore insects, with adults feeding on a tree that is commonly known as the "giraffe beetle tree" (Dichaetanthera arborea)
This states that these insects need the "giraffe beetle tree"(Dichaetanthera arborea) which is also native to Madagascar.
So how come this insect could be found in India(Kerala), and further more all the above links state that the long neck of these dimorphic insects are evolved for fighting and nest making but they do tell that after mating the females will make the nest and lay one egg inside, So did the male insect make any nest in reality, if so then why the male have to perform both nest making and fighting.[Sorry for the errors,also there are more links to this]