82 
Psyche 
[March 
Figs. 1-3. Prosopidris papuana new species. Figs. 1 and 2, worker 
(Holotype). Fig. 1. Head, frontal view. Fig. 2. Mesosoma and petiole, 
lateral view. Fig. 3, female (Paratype) ; mesosoma and petiole, lateral view. 
Scale line: 0.40 mm. 
Type locality: Bisianumu, near Sogeri, Papua, 15-20 March, 1955 
(E. O. Wilson acc. 655). 
FEMALE 
Measurements : Based on 5 specimens collected with the workers: 
HL 0.60-0.62 mm; HW 0.46-0.47 mm; Cl 76-78; SL 0.49-0.52 
mm; SI 103-114; PW 0.46-0.47 mm; WL 0.83-0.85 mm; Meso- 
somal Index 54-57 ; Propodeal Spine L. 0.20-0.21 mm; Spl 23-25; 
Petiole L. 0.31-0.33 mm; Petiole Height 0.20-0.21 mm; Petiolar 
Index 146-167; Postpetiole W. 0.28-0.29 mm; Postpetiole L. 0.16 
mm; Postpetiolar Index 56-59. 
Description : General form of mesosoma as in Figure 3. Head, 
antennae, clypeus and mandibles similar to worker. Ocelli slightly 
elevated. Eyes strongly convex, maximum diameter (in all specimens) 
0.16 mm; their anterior edges at a distance of 0.5 X their diameter 
from the lateral genal border. Propodeal spines longer and thinner 
than worker. Petiolar node and postpetiolar dorsum as in worker. 
Dorsal width of first gastric segment 2.2-24 X postpetiole width. 
Head and mesosoma strongly and coarsely reticulate-punctate and 
moderately shining; petiole, postpetiole and gaster moderately reti- 
culate and shining. 
Yellow pilosity as in worker. Yellowish adpressed pubescence dense 
