Day

Female Adults

Male Adults

Total Eggs laid

Nymphs

Live lice

1

1

1

6

0

2

14 day old Adult female lays

2

1

1

12

0

2

first 6 eggs per day

3

1

1

18

0

2

4

1

1

24

0

2

5

1

1

30

0

2

6

1

1

36

0

2

7

1

1

42

6

8

Eggs laid on day 1 hatch as nymphs

8

1

1

48

12

14

9

1

1

54

18

20

10

1

1

60

24

26

11

1

1

66

30

32

12

1

1

72

36

38

13

1

1

78

42

44

14

3

3

96

42

48

First generation Nymphs hatched on�

15

6

6

132

42

54

day 7 become adults and start laying own eggs

16

9

9

186

42

60

Original adults die assuming 28 days old

17

12

12

258

42

66

18

15

15

348

42

72

19

18

18

456

42

78

20

21

21

582

54

96

21

24

24

726

66

114

Nymphs of eggs laid by first generation�

22

27

27

888

96

150

become adults and start laying own eggs

23

30

30

1068

144

204

24

33

33

1266

210

276

25

36

36

1482

294

366

26

39

39

1716

396

474

27

48

48

2004

504

600

28

54

54

2328

630

738

Eggs laid by 2nd generation nymphs�

29

69

69

2742

756

894

become adults and start laying own eggs

30

93

93

3300

882

1068

First generation adults die after about 28 days

31

126

126

4056

1008

1260

32

168

168

5064

1134

1470

33

219

219

6378

1260

1698

34

279

279

8052

1422

1980

35

348

348

10140

1602

2298