花斑皮蠹成虫行为观察

Behavior of Adult Trogoderma variabile

在适宜的温度范围内,随着温度的升高,花斑皮蠹成虫活动性越强,飞翔的虫口数越多;光照度为380 lx时,短时间内即可刺激成虫起飞,在黑暗的条件下,成虫比较安静;未交尾的雌、雄成虫起飞虫口数分别为31.1%和82.52%;交尾产卵后雌、雄成虫起飞虫口分别为6.67%和77.78%;配对成虫有61.2%的成虫飞翔,其中雌虫占14.3%,雌虫未产卵或开始产卵或羽化后7 d内起飞较多;成虫交尾呈"Ⅴ"型,一生多次交尾;雌虫产卵前活动频繁,身体边爬行边后倾,后倾时露出产卵器上下左右摆动,寻找适当的产卵场所;卵有单产、串产、成排产、聚堆产,卵多产于缝隙等处。

It was observed that at an appropriate temperature range, as the temperatrue rose, the activity of Trogoderrna variabile became more active, and the number of flying insect was bigger. When the illuminance was 380 lx, the adults were stimulated to fly at a short time, but stood at dark. The proportions of the unmated flying male and female adults were 31.1% and 82.52% respectively. However, after mating and spawning, the proportion flying female and male adults became 6. 67% and 77. 78%. Among the paired adults, the flying ones accounted for 61.2% , of which about 14.3% were females. Most female adults began to fly within 7 days before or at the initial stage of spawning, or after eelosion. The pattern of mating adult insect appeared in the shape of letter ＂V＂. They mated many times in their lives. The female adults became more active before spawning, their bodies bent backward while walking, and, exposed and swug their ovipositors to find suitable places to lay eggs. The eggs appeared as single, string, line or cluster in gaps.