1958 
Wilson — Ant Species in New Guinea 
31 
Three localities within this forested area were chosen as 
sites of intensive collecting (see figure 1). The Busu-Bupu 
forest was the least disturbed of the three ; lumbering oper- 
ations had commenced in the collecting area only the year 
before, and most of the forest seemed in primary condition. 
The Didiman Creek site contained a tract of forest, at least 
partly second-growth in nature, that had been preserved 
within the Government Agricultural Experimental Station 
on the northern edge of Lae. At Bubia, extensive forest 
tracts, primary at least in part, extended to the east of the 
Jacobson Plantation. The forest tracts at these three locali- 
ties represent relict segments of what can reasonably be 
assumed to have been continuous, predominantly primary 
lowland forest as recently as thirty years ago. Bubia and 
Table I. 
Bubia 
Didiman Cr. Busu R. 
Cardiocondyla paradoxa Emery 
X 
XX 
XX 
Crematog aster ( Acrocoelia ) 
X 
XXX 
— 
irritabilis (Fr. Smith) 
Crematogaster ( Rhachiocrema ) 
■ — 
XX 
— 
sp. nov. 
Tetramorium validiusculum XXX 
X 
XX 
Emery 
Tetramorium ornatum Emery 
- — 
XX 
XX 
Triglyphothrix fulviceps 
— 
XX 
XX 
Emery 
Aphaenogaster dromedarius 
— 
— 
XX 
Emery 
Meranoplus hirsutus (Fr. Smith) X 
— 
XX 
Leptomyrmex fragilis 
XX 
— 
XX 
(Fr. Smith) 
Pseudolasius breviceps Emery XXX 
XX 
X 
Subjective estimates of relative abundance 
of some dominant 
ant 
species at three neighboring localities 
in New 
Guinea. A dashed 
line 
means absent, or at least never observed; a single X, present but 
collected only once or twice ; double-X moderately abundant ; triple-X 
among the two or three most abundant species at the locality. Since 
collecting trips were wide-ranging, these estimates reflect most closely 
the relative abundance of colonies, rather than number of workers or 
biomass. Further explanation in text. 
