Canto-Silva C R, Romanowski H P, Redaelli L R
PPG Biologia Animal, UFRGS, CEP 91501-970, Porto Alegre, RS, Brazil.
Braz J Biol. 2006 Feb;66(1A):19-24. doi: 10.1590/s1519-69842006000100004. Epub 2006 May 2.
The fecundity, daily progeny and longevity of Gryon gallardoi (Brethes) (Hym.; Scelionidae) were determined under laboratory conditions, using Spartocera dentiventris (Berg) (Hem.; Coreidae) eggs as host. Nineteen G. gallardoi females and 34 males were reared at 25 +/- 1 degrees C, with a 12 h photophase, fed on a 10% aqueous honey solution and provided with 25-30 S. dentiventris eggs daily. The average pre-oviposition period was 1.3 +/- 0.35 days, although some females began laying from the day of emergence. On average, oviposition lasted for 10.1 +/- 1.74 days, reaching a peak on the second day, with 67.5 +/- 11.29 eggs laid. The post-oviposition period was short (2.4 +/- 0.48 days). G. gallardoi females lived significantly longer than males: 13.7 +/- 1.94 and 10.6 +/- 1.78 days, respectively. The overall sex ratio was 0.79. The results reported here on the reproductive capability of the species suggest it may have a good potential as an agent for the control of S. dentiventris.
在实验室条件下，以齿突稻绿蝽（Spartocera dentiventris (Berg)）（半翅目；稻绿蝽科）的卵为寄主，测定了加拉多伊格氏螯蜂（Gryon gallardoi (Brethes)）（膜翅目；螯蜂科）的繁殖力、日产后代数量和寿命。19只雌性和34只雄性加拉多伊格氏螯蜂在25±1℃、光照12小时的条件下饲养，以10%的蜂蜜水溶液为食，每天提供25 - 30粒齿突稻绿蝽的卵。平均产卵前期为1.3±0.35天，不过有些雌蜂从羽化当天就开始产卵。平均而言，产卵期持续10.1±1.74天，在第二天达到高峰，产卵量为67.5±11.29粒。产卵后期较短（2.4±0.48天）。加拉多伊格氏螯蜂的雌蜂寿命显著长于雄蜂，分别为13.7±1.94天和10.6±1.78天。总体性别比为0.79。此处报告的该物种繁殖能力的结果表明，它可能具有作为控制齿突稻绿蝽的一种媒介的良好潜力。
