異角釉小蜂 (Hemiptarsenus varicornis) (膜翅目：釉小蜂科) 之外形與生活史

Hemiptarsenus varicornis (Girault) is an arrhenotokous, solitary ectoparasitoid of Liriomyza trifolii (Burgess). The fecundity of the female was affected by mating. The female was capable of killing L. trifolii by parasitizing (42%) and host-feeding (58%). The host larva was deeply paralyzed without moving and feeding in 4 min after wasp oviposition or died immediately after wasp feeding. Its peak of emergence was between 0500 and 0700 h while that of oviposition and host-feeding was between 0500 and 1300 h, and between 0900 and 1700 h, respectively. At 25℃, the wasp took 11.1±0.1 days to complete the development from egg to adult. The duration of egg, larval, prepupal, and pupal stages averaged 1.1±0.0, 4.1±0.1, 0.7±0.0, and 5.2±0.1 days, respectively. When 40-50 3rd-instar larvae of L. trifolii were provided daily, the fecundity and the host killing capability for a wasp was 204±22 wasps and 497±38 hosts, respectively. The longevity of female and male wasps averaged 22.4±1.6 and 14.5±1.0 days, respectively.