Department of Entomology, University of Massachusetts, 01003, Amherst, Massachusetts.
J Chem Ecol. 1984 Sep;10(9):1399-409. doi: 10.1007/BF00988121.
The cement used by females ofSupella longipala (F.) (Orthoptera∶Blattellidae) to bind their oothecae to substrates acts as a kairomone for host acceptance by the parasitoidComperia merceti. C. merceti discriminates parasitized from unparasitized oothecae and oviposts at reduced levels in the former. Low survival rates for parasitoids reared from oothecae receiving fewer than four ovipositions suggests that an "optimal density range" for resource utilization byC. merceti exists.
长角蝉 Supella longipala (F.) （直翅目∶Blattellidae）的雌性用来将卵囊粘在基质上的水泥充当了接受者 Comperia merceti 接受宿主的信息素。C. merceti 可区分已寄生和未寄生的卵囊，并在前者中减少产卵。从接受少于 4 次产卵的卵囊中饲养的寄生蜂存活率低，这表明 C. merceti 存在“最佳资源利用密度范围”。
