新疆巴音布鲁克草原宽须蚁蝗生物学特性研究

宽须蚁蝗在巴音布鲁克草原1年发生1代,以卵在土中越冬,5月中旬开始孵化,5月下旬至6月上旬为孵化盛期,羽化盛期在7月末至8月上旬,9月下旬尚能见到成虫。卵孵化以北京时间12:00~14:00最多。一生食量平均为1 602.21 mg。若虫历期平均73.8 d,成虫历期平均49.3 d,整个历期平均125.1 d。

Studies on the biological characteristics of Myrmeleotettix palpalis on Bayinbulake Grasslands

The biological characteristic of Myrmeleotettix palpalis Zub.was studied on Bayinbulake Grasslands,Hejing County,Xinjiang through laboratorial observations and field surveys.The results showed that only one generation of this grasshopper occurred per year in Bayinbulake Grasslands.It overwintered as eggs in soils.In the next year,the first hatching appeared in middle May,with the hatching peak ranging from late May to early June,and the adult emergence peak from late July to early August.The average ingestion capacity of one grasshopper was 1602.21 mg in a life.The majority of male nymphs covered 4 instars,and 5 instars for the females.The developemental duration of nymphs lasted for about 73.8 days,and the longevity of adults for about 49.3 days,with the whole life span as about 125.1 days.