草业科学2012，Vol.29Issue(8)：1307-1312,6.
黑腹胃蝇三龄幼虫形态学和成虫行为方式研究
Gasterophilus pecorum third instar larvae morphology and adult behavior mode
摘要
Abstract
Objectives of this study were to analyze morphological characteristics of third instar larva of Gasterophilus pecorum and behavior of adult flies by laboratory culture and field observation from 2008 to 2010. G. pecorurn larva parasitize inside bodies of local domestic horses that live sympatricly in the strictly protected area with reintroduced Przewalski horses （gquus ferus przewalskii） in Kalamaili of Xinjiang. A total of 920 third instar larva were collected and cultured, of which 35 （2.9%） individuals pupated suc- cessfully and pupal period of G. pecorum varied from 13 to 27 days with a peck between 18th and 20 th days （42.86%）. 17 （48.57%） individuals emerged and emergence period varied from 15 to 27 clays with a peck between 21 th and 22 th days （22.86%）, of which 11. 76% were males and 88.24% were females with a sexual ratio of 0. 13. Their longevity varied from 2 to 8 days, but the higher frequency was found from 4 to 6 days （58.82%）. It was observed that length, width and weight of larvae bodies were （13.2± 7.0） mm, （5. 1±4.0） mm and （241±30） mg, respectively. However, correlation analysis demonstrated that the length, width and weight of larvae bodies did not correlate with sex of adult flies. Results obtained from field investigation showed that mating behavior of G. Decorum was not observed in the wild field or near the horse. Host seeking and grooming behavior at the early emergence period was found. The eggs of G. pecorurn were not found on the host surface and stems or leaves of plants.关键词
黑腹胃蝇/三龄幼虫/化蛹期/羽化期Key words
Gasterophilus pecorum/third instar larvae/pupation period/emergence period分类
生物科学引用本文复制引用
刘善辉,胡德夫,初红军,曹杰,曹玉成,李凯..黑腹胃蝇三龄幼虫形态学和成虫行为方式研究[J].草业科学,2012,29(8):1307-1312,6.基金项目
国家自然科学基金项目 （）
