Bionomics of larger Black Chafer (Holotrichia morosa Waterhouse) and Korean Black Chafer( H. diomphalia Bates) with Special Reference to Their Morphological Characteristics and Life Histories

큰검정풍뎅이와 참검정풍뎅이의 형태 생활사

  • 김기황 (한국인삼연초연구소) ;
  • 현재선 (서울대학교 농업대학)
  • Published : 1988.06.01

Abstract

A study was carried out to investigate the morphological characteristics and life histories of H. morosa and H. diomPhalia during the period from 1984 to 1986. The head capsule width and bOdy length of H. Morosa larvae were slightly greater than those of H. diomPhalia. Otherwise, the two species looked very similar and were hard to be differentiated from each other in all life stages. H. morosa adults emerged in late June and laid eggs in soil during the period between mid July and mid August. Larvae developed by September to the last(3rd) instar which overwintered to pupate in late May. H. diomPhalia adults emerged from mid August but remained under the soil until next spring after which females laid eggs in soil from late May to early July. Larvae developed in most cases to the last instar by September and overwintered thereafter. Unlike H. morosa, they resumed feeding next April and began to pupate in late July. The egg periods of H. morosa and H. diomPhalia did not significantly differ but the larval and pupal periods of the latter were longer than those of the former.

Keywords

H. morosa;H. diomphalia;morphological characteristics;life histories