截头堆砂白蚁的分飞期研究

Swarm periods of primary reproductives in Cryptotermes domesticus

对不同群体、不同年份截头堆砂白蚁Cryptotermesdomesticus(Haviland)的分飞期进行了 3年的观察研究。结果表明 :该种白蚁的分飞期长 ,且 3年的分飞期基本相同。在广州 ,该种白蚁的分飞期一般在每年的 4月中旬至 8月下旬 ,分飞始期的第 1次分飞日最早为 4月 1 5日 ,分飞末期的最后 1次分飞日在 9月 1 6日。 1年中该种白蚁的分飞日数为 5 5～ 80日。其中 ,分飞日数较多的月份为 5～ 7月。其飞出时间一般在傍晚 1 8:3 0～ 1 9:3 0 ,以 1 9:0 0～ 1 9:3 0分飞次数最多 ,占分飞总数的 66 66%。

The swarm period of perimary reproductives in Crytoptotermes domestica was longer than that in other species and occurred yearly from the middle of April to the last of August in Guangzhou based on the three years observation.The first day of the swarm period was 15th April and the last day of that was 16th September.The swarm period was about 50～80 days and the peak occurred from May to July.The swarm time was generally at 18:30～ 19:30, the peak was at 19:00～ 19:30, in which the number of perimary reproductives swarming attained about 66\^66% in this time.