title: The structure and morphogenic changes of antennae of Matsucoccus matsumurae (Hemiptera: Coccoidea: Matsucoccidae) in different instars.
abstract: To better understand the functioning and morphogenic changes of the antennae of Matsucoccus matsumurae (Kuwana) in different instars, the antennae are examined using light microscopy, scanning and transmission electron microscopy. The results show that the antennae of M. matsumurae display three different styles in morphology and sensillar distribution in different instars. The antennae of first instar nymphs are relatively simple, including one campaniform sensillum (Ca), four smooth aporous trichoid sensilla (SAt), two intersegmental sensilla (Ins), two coeloconic sensilla (Co), three multiporous pegs (Mp) and four uniporous pegs (Up). The antennae of adult females and third instar male nymphs both possess similar antennae, and exhibit seven types of sensilla. Adult female antennae have in total 82-108 sensilla, including 9-16 Böhm's bristle (Bb), 3-7 Ca, 50-75 SAt, 0-3 Ins, 3-10 Co, 8 Mp and 5 Up, whereas third instar male nymph antennae possess approximately 62-79 sensilla. Adult male antennae are the most developed, possessing 259-312 sensilla, including 7-15 Bb, 2-5 Ca, 7-11 grooved aporous trichoid sensilla, 4-9 SAt, 0-3 Ins, 2-7 Co, 23-29 knobbed seta sensilla, 179-230 multiporous trichoid sensilla and 8 Mp. Based on these results, the main functions and morphogenic changes of antennae M. matsumurae in different instars are discussed.
authors: School of Life Science, Shanxi University, Taiyuan, Shanxi 030006, China.
authors: Xu
authors: X
authors: Wang
authors: School of Life Science, Shanxi University, Taiyuan, Shanxi 030006, China. Electronic address: xieyingping@eyou.com.
authors: Yingping
authors: Y
authors: Xie
authors: School of Life Science, Shanxi University, Taiyuan, Shanxi 030006, China.
authors: Yanfeng
authors: Y
authors: Zhang
authors: School of Life Science, Shanxi University, Taiyuan, Shanxi 030006, China.
authors: Weimin
authors: W
authors: Liu
authors: Jinhua Forest Pest Quarantine Station, Jinhua, Zhejiang 321017, China.
authors: Jun
authors: J
authors: Wu
mesh_terms: D000818:Animals; D057506:Arthropod Antennae / Q000254:growth & development / Q000502:physiology / Q000648:ultrastructure*; D005260:Female; D006430:Hemiptera / Q000254:growth & development / Q000502:physiology / Q000648:ultrastructure*; D007814:Larva / Q000254:growth & development / Q000502:physiology / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D011679:Pupa / Q000254:growth & development / Q000502:physiology / Q000648:ultrastructure; D012727:Sex Characteristics
keywords: Antennal sensilla; Function; Matsucoccus matsumurae; Morphogenic changes; Ultrastructure