Fig. 2 in Effects of the antennal sensilla distribution pattern on the behavioral responses of Tribolium castaneum (Coleoptera: Tenebrionidae)

Fig. 2. SEM photomicrographs of 2 types (A1, B1) of sensilla trichodea (ST) on the antennae of Tribolium castaneum. TEM photomicrographs of 2 types (A2, B2) of sensilla trichodea (ST). A2 showed a thick cuticular wall and regular point-shaped pores around the cuticular wall, B2 a thick cuticular wall and pore structures with an irregular pointed shape. CW = cuticle wall, P = pores, STI = sensilla trichodea type I, STII = sensilla trichodea type II.`