TiffE CHICKEN MITE. 5 
First engorgement of females: 
August 12, p. m. Put foregoing mites with fowl over night. 
August 13, 9 a. m. 70 engorged females recovered, and about 30 unfed males. 
Females put in separate tubes from the males and one female in a tube. 
First deposition of females: 
August 13, 7 p. m. (before). Two females have begun to deposit. 
August 14, 9 a .m. Five females are now depositing. 
August 14, 9 a. m. Five females are now depositing. 
August 15, 8.30 a. m. 52 females are now depositing. 
August 15, 1.30 p. m. 61 females are now depositing. 
August 15, 5 p. m. Same. 
August 16, 10.30 a. m. 62 females are now depositing. 
August 16, 4 p. m. 64 females are now depositing. 
Hatching of eggs to larvae: 
August 16, 10.30 a. m. Some eggs from 17 of the females have hatched. 
August 17, 11 a. m. 40 females now have eggs hatching. 
August 17, 4 p. m. 43 females now have eggs hatching. 
August 18, 10 a. m. 48 females now have eggs hatching. 
(Sixteen females unaccounted for in notes.) . 
Molting of larvae to first-stage nymphs: 
August 16, 10.30 a. m. Some of one female's larval progeny have molted to 
first-stage nymphs. 
August 17, 11 a. m. Some of 34 females' larval progeny now have molted to 
nymphs. 
August 17, 5 p. m. Some of 42 females' larval progeny now have molted to 
nymphs. 
August 18. Some of 57 females' larval progeny now have molted to nymphs. 
Second engorgement of females: 
(No males put with females before, during, or after feeding.) 
August 20 (night of). About 60 females put with fowl. 
August 21, 9 a. m. 59 engorged females recovered and put in separate vials, 
except seven which were not fully fed. 
Second deposition: 
August 22, 5 p. m. — 
6 females have laid 1 egg each. 
5 females have laid 2 eggs each. 
24 females have laid 3 eggs each. 
10 females have laid 4 eggs each. 
6 females have laid 5 eggs each. 
2 females have laid 6 eggs each. 
August 23, 9.30 a. in.— 
6 females have laid 1 egg each. 
4 females have laid 2 eggs each. 
10 females have laid 3 eggs each. 
15 females have laid 4 eggs each. 
11 females have laid 5 eggs each. 
5 females have laid 6 eggs each. 
2 females have laid 7 eggs each. 
Totals, 53 females deposited 203 eggs. 
The average mean temperature during this period was 80.8° F. No more 
eggs were deposited by these females until they were fed again. Two of the 
mites died after this deposition. 
