1965] 
Haskins and Whelden — Rhytidoponera 
93 
from Millaa Millaa was divided into two portions, one with and one 
without the brood queen. An interval was then allowed to permit 
the maturation of larvae and pupae in the nests at the time of capture. 
In the fragments of both colonies lacking parent queens, as well as ia 
those where the normal females were present, oviposition soon oc- 
curred, and fairly copious broods were shortly reared. By late March 
abundant pupae were present in several groups. In that month, and 
over a following period until mid- January, 1965, samples of cocoons 
were regularly withdrawn from these colony-fragments and opened, 
and their contained pupae scored for sex and caste. The results, in 
which the numbers of pupae in all the queenless fragments of Colony 
No. 1 are summed for each date, appear below: 
No. of Colony 
Dates of Assay of Pupal 
1 and Young Adult Samples 
Fragment 
Examination Workers 
Males 
1 A (Kuranda — 
4/29/64 
23 pupae ; 3 callows 0 
with parent 
6/ 4/64 
14 pupae ; 
0 
female) 
7/12/64 
15 pupae; 1 callow 0 
9/20/64 
15 pupae 
0 
12/ 5/64 
34 pupae 
0 
1/19/65 
30 pupae 
0 
Total: 131 
worker pupae; 
4 callow workers; 0 males. 
1 B-E (Kuranda — 
4/29/64 
0 
47 pupae; 26 adults 
fragments of 
5/10/64 
0 
3 pupae 
colony without 
6/ 4/64 
0 
12 pupae 
brood queen) 
7/12/64 
0 
10 pupae 
9/20/64 
0 
27 pupae 
12/ 5/64 
0 
34 pupae 
1/19/65 
0 
47 pupae 
Total: 180 male pupae; 
26 male adults; 0 workers. 
2 A (Millaa-Millaa 
— 4/29/64 
23 pupae; 2 callows 0 
with parent 
6/ 4/64 
39 pupae 
0 
female) 
6/22/64 
1 pupa 
0 
12/ 5/64 
32 pupae 
0 
1/19/65 
29 pupae 
0 
Total: 124 
worker pupae ; 
2 callow workers; 0 males. 
2 B (Millaa-Millaa - 
- 4/29/64 
3 callows* 
15 pupae 
fragment without 
6/ 4/64 
0 
5 pupae 
parent female) 
6/22/64 
0 
4 pupae 
9/20/64 
0 
8 pupae 
12/ 5/64 
0 
14 pupae 
1/19/65 
0 
14 pupae 
Total: 60 male 
pupae; 3 callow workers.* 
*These callow workers, found fresh-hatched on April 29, 1964, almost 
certainly represent the final fragment of maturing brood collected with the 
original colony, and seem with little doubt to have been progeny of the 
fertilized brood female. 
