IS THE HAIRY GROOVE IN THE GIBBOSUS MALE MORPH OF OEDOTHORAX GIBBOSUS (BLACKWALL 1841) A NUPTIAL FEEDING DEVICE?

IS THE HAIRY GROOVE IN THE GIBBOSUS MALE MORPH OF OEDOTHORAX GIBBOSUS (BLACKWALL 1841) A NUPTIAL FEEDING DEVICE?