The effect of delayed female mating for the mushroom fungus gnat Lycoriella ingenua is investigated. We examine the effect of delaying female mating on the fertility and egg viability of female flies that have a mating delay of 0–5 days after emergence. Male fly age is held constant. Female age does not impact male acceptance and most flies copulate within seconds of pairing. We find that female flies experiencing mating delays of 0–4 days after emergence lay a similar number of eggs onto artificial substrates. Females that experience a mating delay of 5 days lay 54% fewer eggs than those that mate on day 0 (day of emergence). There is no effect of mating delay on the percentage of larvae that emerge. The results of the present study indicate that mating delays have little effect on the fertility or fecundity of the mushroom fungus pest L. ingenua.

中文翻译：

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延迟交配对雌性蚋Lycoriella ingenua的繁殖力或生育力影响不大

研究了延迟雌性交配对蘑菇真菌 gnat Lycoriella ingenua 的影响。我们研究了延迟雌性交配对出现后 0-5 天交配延迟的雌性果蝇的生育力和卵活力的影响。雄蝇年龄保持不变。雌性年龄不会影响雄性接受度，大多数果蝇会在配对后几秒钟内交配。我们发现雌性果蝇在出现后经历 0-4 天的交配延迟，在人造基质上产下相似数量的卵。交配延迟 5 天的雌性比第 0 天（出苗日）交配的雌性产卵少 54%。交配延迟对幼虫出现的百分比没有影响。本研究的结果表明，交配延迟对蘑菇真菌害虫 L. ingenua 的生育力或繁殖力几乎没有影响。