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[Vol. 91 
cies in the two colonies of the closely related species B. myersi. Their 
results for metasomal reddening for one nest were similar to ours 
(association of this and caste were not reported for the other col- 
ony), with reddening occurring only in workers among their dis- 
sected wasps. The basis of this association is unknown, but it 
certainly does not arise from any “effect of dissection” as the 
Richardses speculated, for we recorded color before dissection. 
Metapolybia cingulata: 
One colony of this species (82-02-08-a) was collected on Febru- 
ary 8 at Voltzberg Camp. It was oriented obliquely on a large gran- 
ite boulder in “mountain savannah” forest, and was about 0.5 m 
above the ground and well shaded. The envelope was of the same 
color as the lichen- and moss-grown rock face, and so the nest was 
very well camouflaged. It measured 6.35 by 4.45 cm in surface area, 
and the entrance was on the upper surface towards the lower end. 
The paper was green-gray, very flexible and composed of crumbly 
fragments in a matrix of secretion. It was uniformly thin. The secre- 
tion formed the “windows” (Richards and Richards, 1951) scattered 
throughout the envelope. The paper forming the comb was brown 
and composed entirely of granular material overlain by secretion. 
The cells were separated from the envelope, and there were a min- 
imum of 222 (some were destroyed during removal). No brood was 
found. 
Adults collected numbered 38, and approximately ten escaped. 
There were two queens, 33 workers and three males. Among the 
workers, four had an ovariole index ranging from 1 to 4 but none of 
these had any “developed” eggs (length greater than 0.6 mm). They 
were therefore treated as workers in the analyses. Measurements 
included maximum width of tergum II and length of discal cell. 
These were significantly correlated with each other (all n = 35, 
r =.586, p <.001), but not with hamulus number (r =.208 for tergal 
width, . 1 88 for discal cell length). None of these measures was corre- 
lated with ovariole index (r =. 1 79 for tergal width, .115 for discal 
cell length and .182 for hamulus number). Queens were not different 
from workers in tergal width (t =.699) or hamulus number 
(t= 1.2216). In length of the discal cell, the castes differed signifi- 
cantly by a t-test (mean = 2.74 mm for queens versus 2.82 for 
workers, t = — 4.776, p<.001), but not by a Mann-Whitney test 
(T= 14). The former test has more power, but in view of the small 
