Study On The Characters Appraisal And Training In Low Temperature Of Scleroderma Sichuanensis Xiao

The appraisal of properties and training of Scleroderma sichuanensis Xiao in low temperature were investigated. The results were as following :The length of body,the length of head,the wide of head,the length of abdomen,the length of ovipositor and the color of prothorax and metathorax are related to the number of adult,which should be as idex of queen. When the above 6 characters and the number of adult were divided into 4 groups,the 4 groups are different. That is to say Scleroderma sichuanensis Xiao has the variation of the 4 groups. The third group is the best in the parasitism,the number of adult and the proportion in the total. It' s characters are the following:the length of body is 3. 6-4. 4mm,the color of head and thorax is brown and yellow,the color of abdomen is black,the mean ratio of parasitism is 75. 32%,the mean number of adult is 21.04 and the proportion in the total is 32%.This study trained Scleroderma sichuanensis Xiao in 20 until the fourth adult emergent. The results show that the 4 generations had the more high number than the contrast in the rate of parasitism,cocoon ,emergence and the number of adult. The manage not only had higher number of parasitism,cocoon and emergence and the number of adult than the contrast when fostered in 26,but also can parasite in lower temperature of 17 at which the contrast can' t parasite. The results also show that the freedom water is descend and the fetter water is ascend with the increase of training in 20 "C which is identical to the specific property of insect in the low temperature. And the Scleroderma sichuanensis Xiao parasite in 20 and the latter generation is big and black.