On the morphology and possible function of two putative vibroacoustic mechanisms in derbid planthoppers (Hemiptera: Fulgoromorpha: Derbidae).

摘要: Abstract A mechanism involving interaction of the metathoracic wing and third abdominal segment derbid planthoppers was first discovered over a century ago, interpreted as stridulatory organ for sound production. Although referred to occasionally in later taxonomic works, detailed morphology, systematic distribution, behavioural significance this structure have remained unknown, its proposed use production has never been corroborated. Here we examine distribution morphology supposed Derbidae recently-described vibratory – snapping organ, across 168 species covering entire spectrum family. We find that many derbids possess organs morphologically similar those other planthoppers, no evidence presence tymbal organs, which were previously thought generate vibrational signals derbids. be widespread Derbidae, conclude it provides several systematically taxonomically important characters. Nevertheless, appears unsuitable sound, instead speculate plays role spreading chemical secretions or wax. Finally, observe wax by tergal glands larvae, illustrate their external adults.