1987] 
Goodloe, Sanwald, & Topoff— Polyergus lucidus 
41 
nest ceased. The artificial nest was then replugged and returned 
inside until the next raiding opportunity. The two colonies were 
allowed to raid on alternate days at the fixed location within the 
constraints of differences in time of onset of raiding activity. 
Samples of slave species workers were taken from each raided 
colony, when possible, for identification (see Appendix). Data were 
analyzed using the binomial test for large samples to determine if 
the choice of species raided was non-random. Expected P for ran- 
dom choice was set at .5 because both slave species were equally 
available to the raiders. 
Results and Discussion 
The results of this study are summarized in Table 1. Between June 
1 and August 3, 1985, Colony P/S#l, containing F. schaufussi 
slaves, made 45 raids. Samples of raided workers were obtained for 
44 of these raids. In the blind identification of samples, 43 were 
determined to be F. schaufussi and one was F. nitidiventris. Choice 
of host species to raid was non-random (p < .00003, n = 44). 
Colony P/N#10, containing F. nitidiventris slaves, conducted a 
total of 32 raids. Worker specimens were obtained for 28 of the 
raided colonies. Of these, 25 were identified as F. nitidiventris, one 
as F. schaufussi, and two as indeterminate, possible F. incerta. 
Again choice of host species was non-random (p < .00003, n = 28). 
The raid of P/S#l on the F. nitidiventris netted approximately 50 
pupae, while the raid of P/N#10 on the F. schaufussi nest netted 5 
pupae. These numbers are low, but there is no evidence to determine 
whether the raiders were less interested in the pupae of these species 
or if the raided nests were already depleted of pupae. 
Table 1. Slave species raided by P. lucidus colonies. 
Same 
Different 
Inter- 
mediate*** 
Total 
P/S#l* 
43 
1 
0 
44 
P/N#10** 
25 
1 
2 
28 
*P. lucidus colony with F. schaufussi slaves 
**P. lucidus colony with F. nitidiventris slaves 
♦♦♦intermediate in characters between the two slave species 
