【摘要】 无棘额蚤(Frontopsylla aspiniformis Liu ＆ Wu,1960)是达乌尔鼠兔(Ochotona daurica Pallas,1776)的主要寄生蚤,数量多,繁殖力强,人工养殖在温度19～21℃、相对湿度68～76％,幼虫饲以猪血粉的条件下,各发育期分别为:卵期2～8天、幼虫期16～27天(结茧率约为66.2％),蛹期(包括前蛹期)19～25天(羽化率约为75.4％),从卵—幼虫—蛹—成虫的变化发育历时为38～44天,雌雄之比为2.1:1.0.温度在12～14℃,相对湿度在72～86％,卵期5～1O天,幼虫期约为41～83天(结茧率均为74.9％),蛹期(包括前蛹期)60天(羽化率约为64.7％),从卵—幼虫—蛹—成虫变态发育约为120～151天,雌雄之比为1.2:1.0,羽化次序雌先于雄,两组温湿度的不同变态期也有很大差异,一龄蚤幼破卵器正面观呈鞋底状,前半部较宽,前端钝圆;后半部略小于前端,孵化刺发达,位于破卵器前1/3处,期顶端尖锐,并明显向前突出。更多还原

【Abstract】 Frontopsylla aspini formis, which is the main parasitic flea on Ochotona daurica Pallas, was experimentally bred by feeding the larvae with pig blood powder at temperatures of 19-21℃ and relative humidities of 68-76%.Durations of developmental stages were: egg stage 2-8 days, larvae, 16-27 days and pupa stage 19-25 days with an emergence rate about 25.4%. The complete life cycle from egg to adult took 38-44 days. Ratio of female to male was 2.1:1.0. Under the condition of 12-14℃ and 72℃6% relative humidities, durations of egg, larvae and pupa (including prepupa) were 5-10, 41-83, and 80 days, respectively. The complete life cycle was about 120-151 days, sex ratio was 1.2F:1.0M. Female emerged earlier than male. Metamorphic periods were significantly different at different temperatures and humidities. The facade ofthe egg buster of first instar larvae had a shape of a sole, its front, being bluntly circular, wasslightly wider than the rear part. The incubation acantha, located on the first third of the egg buster, was well developed with a sharp and forward protruding top.更多还原