. Brigham Young University science bulletin. Biology -- Periodicals. ^i\iiigdta(^ \fFukusfiii Shiga /Na^no "^°'^^'9; ^\ />no-, r^ff"":'!' y *Tokushima ) Kumamoto FMiyazaki YamanashiA: ^ . i, ""fJt^Chiba (J^^^anagawa â (jMivake le .Aichi Tokyo Hachl]o. Map Known distribntion of llaemaphijsalia flava. hares, adults were most abundant in late autumn and winter. Saito observed a similar trend in Niigata Prefecture, except for the fact that there was a peak in March instead of winter, and adults disappeared in summer. Nymphs were found active on hares througho
. Brigham Young University science bulletin. Biology -- Periodicals. ^i\iiigdta(^ \fFukusfiii Shiga /Na^no "^°'^^'9; ^\ />no-, r^ff"":'!' y *Tokushima ) Kumamoto FMiyazaki YamanashiA: ^ . i, ""fJt^Chiba (J^^^anagawa â (jMivake le .Aichi Tokyo Hachl]o. Map Known distribntion of llaemaphijsalia flava. hares, adults were most abundant in late autumn and winter. Saito observed a similar trend in Niigata Prefecture, except for the fact that there was a peak in March instead of winter, and adults disappeared in summer. Nymphs were found active on hares throughout the year, but generally adults were most abundant from au- tumn to winter. Larvae were found most fre- (luently in November in Niigata Prefecture and in summer in Chiba Prefecture. Asanuma (1956a) studied the laboratory life cycle of H. flava. Eggs of H. flava hatched in 24-25 days when maintained at a constant tempeature of .30 C and at 80-90? relative hmnidity. Eggs de- posited early in May hatched in 28 days at room temperature, while eggs deposited in late May hatched in .32 days. Duration of larval attach- ment to the host varied from 2-13 days. Most lar\ae dropped from the host on the third, fourth, or fifth day after attachment. After de- tachment from the host, larvae entered a post- parasitic period which varied in length accord- ing to temperature. At a constant temperature of 30 C and at 1005? relative humidity, duration of the postparasitic period was from 9-15 days (average 11 days). At 25 C, it was from 14-21 days. When kept at room temperature, after. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brigham Young University. Provo, Utah : Brigham Young University
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