Mating behaviour of Chondromorpha severini, a polydesmid millipede was studied in the field and in the laboratory condition. Copulating pair follows the general rule of love play before actual act of coitus. Mating duration varied from one to 25 minute with an average of eight minute. Mating frequency was maximum in early and late hours of day. In the multiple mate preference experiment, 10 pairs of male and female were used to calculate preference index (Pi) of individual sex. Preference index varies from 0.65 to 0.91. The implication of multiple mating has been discussed in detail. The study confirmed that i) the species belongs to polygynandrous mating system where males are the pursuers and females are the accomplishers ii) short and long duration mating is related to mate acquisition and mate guarding respectively.

中文翻译：

---

中华绒螯蟹（Diplopoda：Polydesmida）的交配模式，持续时间和多次交配。

在田间和实验室条件下研究了中华绒螯蟹（Chondromorpha severini）的交配行为。交配对遵循性交的一般规则，然后才进行性交。交配时间从1到25分钟不等，平均为8分钟。交配频率在一天的早晚各时段最大。在多伴侣偏好实验中，使用10对男性和女性对计算性别的偏好指数（Pi）。偏好指数从0.65到0.91不等。已经详细讨论了多个配合的含义。该研究证实：i）该物种属于雌雄同体的交配系统，其中雄性为追赶者，雌性为成功者。ii）短期和长期交配分别与配偶获取和配偶保护有关。