Fig 1.
Hippodamia variegata; Scanning electron micrographs of the antennae.
(a) Dorsal surface of female antenna. (b) Ventral surface of female antenna. (c) Dorsal surface of male antenna. (d) Ventral surface of male antenna. Sc, scape; Pe, pedicel; F1-F9, the first to ninth flagellomere.
Fig 2.
The length and width of each antennal segment in both sexes of Hippodamia variegata.
(a) The length of each antennal segment. (b) Width of each antennal segment. Asterisk indicates significant difference in 0.05 level, values shown are the mean ± standard error.
Table 1.
Morphological characteristics and distribution of the antennal sensilla of Hippodamia variegata.
Fig 3.
Hippodamia variegata; scanning electron micrographs of the dorsal surface of female antennae and the sensilla.
(a) Morphology of scape, pedicel and the first two flagellomeres. (b) Böhm bristle (Bb). (c) Enlarged views of the basal part of scape showing the scaly surface and different types of sensilla. (d) Böhm bristle (Bb) and sensilla placodea (Sp). (e) Sensilla chaetica I (Sch1) and sensilla coeloconica (Sco). (f) Sensilla chaetica I (Sch1) and sensilla chaetica II (Sch2).
Fig 4.
Hippodamia variegata; scanning electron micrographs of the ventral surface of female antennae and the sensilla.
(a) Morphology of scape (Sc), pedicel (Pe) and the first two flagellomeres. (b) Ventral surface of flagellum. F1, the first flagellomere. (c) The intersegmental area between scape and pedicel showing Böhm bristle (Bb). (d) Sensilla chaetica I (Sch1) on flagellum.
Fig 5.
Hippodamia variegata; scanning electron micrographs of the ventral surface of male antennae and the sensilla.
(a) Enlarged view of scape showing sensilla chaetica I (Sch1) and sensilla chaetica II (Sch2). (b) Enlarged view of pedicel and the first flagellomere showing sensilla chaetica III (Sch3). (c) Enlarged view of the white dashed box in (a) showing Böhm bristle (Bb). (d) The intersegmental area between scape and pedicel. (e) Sensilla chaetica II (Sch2). (f) Sensilla chaetica III (Sch3). (g) The terminal part of the eighth flagellomere showing various types of sensilla. (h) Enlarged view of the white dashed box in (g) showing sensilla basiconica I (Sb1) and sensilla coeloconica (Sco).
Fig 6.
Hippodamia variegata; Scanning electron micrographs of the sensilla on the last flagellomere of female.
(a) Ventral surface of the last flagellomere. (b) Dorsal surface of the last flagellomere showing sensilla chaetica I (Sch1), sensilla chaetica II (Sch2) and sensilla basiconica III (Sb3). (c) Enlarged view of the white dashed box in (a) showing sensilla trichodea (Str) and other sensilla. (d) Sensilla basiconica I (Sb1). (e) Sensilla basiconica II (Sb2). (f) Sensilla basiconica III (Sb3) and sensilla coeloconica (Sco).
Table 2.
Segmentation and sensilla type on antennae of lady beetles.