560 
Psyche 
[Vol. 92 
Frontal carinae extend to about midlength of head. Apart from a 
slight projection behind the scapal insertion, they are straight and 
slightly divergent (Fig. la). Anterior clypeal margin almost straight, 
but in the middle third weakly concave, with slightly indented edges. 
Eyes are situated behind the midlength of the sides of the head; their 
maximum diameter is 0.31 mm, or about 0.24 HW. 
Head and alitrunk dark brown; gaster and petiole dirty yellow. 
Antennae and legs, including tibiae, dark brown, while apical flagel- 
lar segments, tarsi and front of head are dirty yellow like the gaster. 
Surface of head, alitrunk and gaster weakly shining. Accordingly, 
cuticular punctures and reticulated sculpture (SEM) are weak (Fig. 
la, c). Gaster with an imbricate sculpture (Fig. 3b), which is much 
more pronounced in gaster of males (Fig. 3c). Yellowish white, 
decumbent pubescence on the whole body, including scapes and 
legs. Longer erect, yellowish white hair especially on clypeus, but 
also on rest of head, alitrunk and gaster. Propodeum, seen in pro- 
file, broadly rounded and slightly higher than promesonotum. Dor- 
sal part of the propodeum convex, descending part straight. In the 
lower fifth, the declivity is slightly concave. 
Paratype 2$ : TL 5. 1-5.8, HL 1.26-1.38, HW 1.29-1.48, Cl 98-106, 
SL 1.43-1.57, SI 85-100, PW 0.77-0.92, OD 0.31-0.39 or 0.24-0.31 
HW (20 measured). 
Holotype 2, Western Malaysia: Pahang, near Kuantan, 20.2.1984 
(Naturhistorisches Museum, Basel). 
Paratypes: 20 22 with the same data as holotype (2 in British 
Museum (Natural History), London; 2 in Museum of Comparative 
Zoology at Harvard University; 2 in National Museum of Malaysia, 
Kuala Lumpur; 2 in Museo Civico di Storia Naturale, Genova; 12 in 
collection of the author). 
B. Gynetype (2): TL 1 1 .3, HL 2.33, HW 2.24, Cl 96, SL 2. 16, SI 104, 
PW 1.76, OD 0.69. 
Frontal carinae extend about to midlength of the head. Apart 
from a lateral projection beyond the scapal insertion, they are 
almost straight and only slightly divergent. Clypeus wider than that 
of worker (0.67 mm as against 0.50 mm). Its anterior margin shows 
a median semicircular excision, with indented edges (Fig. lb). 
Mandibles strong, distinctly rounded on outside and with 5 sub- 
equal teeth on inside. Frontal area not clearly delimited and hardly 
more shining than surroundings. Head and alitrunk black, tergites 
