logo

Video encyclopedia

Hair-pencil

3:51

PENCIL CURLING HAIR HACK?! Makeup Mythbusters w/ Karina Garcia & MayraTouchOfGlam

2:38

Phoebe Waller Bridge Fleabag | Hair is Everything | Prime Video

2:00

Pencil Bun | Easy style for school

1:30

How to make Side Braid using Pencil | Niya Kumar

0:18

Easy hair up with hair stick #shorts

Hair-pencils and coremata are pheromone signaling structures present in lepidopteran males. Males use hair-pencils in courtship behaviors with females. The pheromones they excrete serve as both aphrodisiacs and tranquilizers to females as well as repellents to conspecific males. Hair-pencil glands are stored inside the male until courtship begins, at which point they are forced out of the body by sclerotized levers present on the abdomen. Coremata are very similar structures. Their exact definition is confused by early descriptions but they are more specifically defined as the internal, glandular, eversible structures that bear the hair-pencils and can be voluntarily inflated with hemolymph or air.
    • Hair-pencil pheromone effects 

    • Plants and insect relationsÂ