Antennae and Eyes

• Antennae

   elongated, mobile segmented appendages in adults of varying designs and sizes, are used for sensory purpose and sometimes for defense
• Scape

  basal segment
• Pedicel

   second segment
• Flagellum

  whip – like part beyond the pedicel

   
• Filiform

  threadlike, segments nearly uniformly cylindrical in size
• Ex. Filiform

  grasshopper, cricket, cockroach
• Moniliform

  beadlike, segments similar in size and nearly spherical in shape
• Ex. of Moniliform 


  termite
• Clavate

  clubbed, segments gradually increase in diameter distally
• Ex. of clavate

  butterfly, ladybird beetle
• Serrate

  saw – like, the distal half of the antennal segments triangular.
• Ex. of Serrate

  female click beetle
• Pectinate 

  male click beetles
• Bipectinate 

  double comb – like
• Ex. of Bipectinate

  Male Atlas Moth
• Flabellate

  fan – shaped
• Ex. of Flabellate

  Male twisted – wing parasite
• Geniculate

  elbowed, the first segment is long, and the following segments are small and going off at an angle to the first
• Ex. of Geniculate

  ants and bees
• Plumose

  feathery – like or hairy – like, most segments with whorls of long hair
• Ex. of Plumose 


  Male mosquito
• Aristate

  with a large third segment bearing a conspicuous dorsal bristle called arista
• Dorsal bristle 


  Arista
• Ex. of aristate 


  Housefly
• Setaceous

  bristle – like or needle – like, segments taper distally
• Ex. of setaceous

   dragonfly and damselfly, cicada, leafhoppers
• Capitate

  having a head, terminal segments suddenly enlarged
• Ex. of Capitate 


  sap beetle
• Lamellate

   leaf – like or plate – like, terminal segment expanded laterally to form rounded lobes
• Ex. of Lamellate 


  June Beetle