1981] Howard, Mallette, Haverty, & Smythe—Reticulitermes 79 
Table 1. Mean number of days until the appearance of the first egg and first 
individual of an instar in incipient colonies of different parentage 
Instar 
Parentage 1 
Egg 
1 
2 
3 
4 
Rf^ + Rf$ (spring) 
8.1 
38.2 
46.1 
52.9 
74.7 
Rf$ + Rf$ (fall) 
24.8 
59.7 
65.5 
73.1 
83.3 
RvS + 
11.5 
40.2 
50.5 
58.6 
65.1 
Rf(5 + Rv9 
15.0 
48.5 
60. 4 2 
70. 6 2 
3 
R vS + Rf? 
11.7 
42.2 
50.5 
57.0 
3 
Rf? + Rf? 
7.0 
4 
4 
4 
4 
Rv? + Rv? 
14.6 
45.2 
57.8 
64.6 
3 
1 Reticulitermes flavipes; Reticulitermes virginicus. 
2 Values from one experimental unit only. 
3 Not measured. 
4 No larvae ever produced. 
various combinations varied from 8 to 58.8 percent (Table 2). The 
R. flavipes male + R. flavipes female (spring) combination produced 
only about one-third as many colonies with soldiers as did the R. 
flavipes male + R. flavipes female (fall) combination. The R. 
virginicus male T R. virginicus female combination, however, 
produced approximately the same proportion of colonies with 
soldiers as did the R. virginicus female + R. virginicus female 
combination. 
Temporal Colony Composition and Numbers 
The relative proportions of eggs and larvae in the R. flavipes male 
+ R. flavipes female (spring) combination (Fig. 1 A), R. virginicus 
Table 2. Soldier production in incipient colonies of different parentage 
Parentage 1 
Number of colonies 
producing soldiers 
Total number 
of colonies 
Percent of colonies 
producing soldiers 
Rf<3 + Rf? (spring) 
14 
69 
20.3 
Rf S + Rf? (fall) 
20 
34 
58.8 
Rv<3 + Rv$ 
6 
75 
8.0 
RiS + Rv 2 $ 
1 
85 
1.2 
R v$+ Rf$ 
22 
85 
25.9 
Rf S + Rf 3 $ 
0 
13 
0 
Rv$ + Rv$ 
2 
18 
11.1 
1 Reticulitermes flavipes; Reticulitermes virginicus. 
2 Only one pair produced a larva. 
3 No eggs hatched in this crossing. 
