. The life history and bionomics of some North American ticks . y 14,1908July 19,1908July 21,1908July 25,1908Aug. 2,1908Sept. 5,1908July 7,1909 Days. (Sloughed off.) 10 by 7 11 by by12bv811 by 710 by 710 by 710bv7 by 4 by 5 by by 6 by 4 5 mm. LIFE CYCLE. Larvae may live as long as 227 days; they engorge as soon as 4 daysafter application and may molt in 8 days after dropping, a totaleffective temperature of 350° F. being required. Nymphs may live as long as 175 days; they may engorge in 4 daysafter application and molt as soon as 21 da
. The life history and bionomics of some North American ticks . y 14,1908July 19,1908July 21,1908July 25,1908Aug. 2,1908Sept. 5,1908July 7,1909 Days. (Sloughed off.) 10 by 7 11 by by12bv811 by 710 by 710 by 710bv7 by 4 by 5 by by 6 by 4 5 mm. LIFE CYCLE. Larvae may live as long as 227 days; they engorge as soon as 4 daysafter application and may molt in 8 days after dropping, a totaleffective temperature of 350° F. being required. Nymphs may live as long as 175 days; they may engorge in 4 daysafter application and molt as soon as 21 days after dropping, a totaleffective temperature of 641 ° F. being required. Adults have been found to live for more than 115 days. Matingtakes place on the host. Females may engorge as soon as 12 daysafter being put on a host; they may begin oviposition as soon as 5days after dropping and deposit as many as 4,660 eggs. Depositionmay continue for 26 days. Embryonic development may be com- Bui. 106, Bureau of Entomology, U. S. Dept. of Agriculture. Plate Wh,
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Keywords: ., bookauthorhunterwd, bookcentury1900, bookdecade1910, bookyear1912
