288 
Psyche 
[December 
1. Smaller size, with narrower head and proportionately large 
eyes, which are less widely separated relative to their maximum 
diameter; postpetiole slightly longer than broad in dorsal view 
(length 1.05 X width). (The relevant dimensions of gressitti are: 
TL ca. 6.4 mm; Cl 81; OI 38; eyes separated by 1.53 X their 
maximum diameter; postpetiole length 0.70 mm, width 0.75 mm — 
length 0.93 X width.) 
2. Transverse occipital carina lacking distinct ribs along its an- 
terior edge. 
3. Lateral suturation of mesosoma complete, but less distinct. 
Transverse ribbing vestigial on dorsal promesonotal suture and lack- 
ing on dorsal mesometanotal suture. 
4. Transverse anterior petiolar carina without ribs. 
5. Sides of postpetiole, in dorsal view, almost parallel, very 
feebly divergent posteriorly. 
6. Body entirely smooth and shining, except for some vestigial 
fine longitudinal striae on frontal carinae, and scaly microsculpture on 
sides of pronotum and propodeum, and on metepisternal areas. 
7. Post-cephalic ground pilosity more abundant. Very line short 
reclinate to suberect hairs scattered on dorsum of mesosoma, 
most abundant on sides of propodeal dorsum. Similar pilosity mod- 
erately abundant on dorsa of petiole and postpetiole. Single, more 
erect, but barely longer hairs at midlength of each frontal carina and 
above each eye, but not elsewhere. No subpetiolar “brush” developed; 
only 2 hairs break the subpetiolar profile. 
The mandibular dentition is worn but was probably originally 
like that of bakeri , as described by Menozzi. The legs are damaged; 
so details of the tibial and tarsal armament are not known. 
Relationships. See below under S. bakeri. 
Sunopone bakeri Menozzi 
Simopone bakeri Menozzi, 1926, Atti Soc. Nat. Mat. Modena, (6) 
4: 92 (1925), worker. Type locality: Singapore. 
The notes below are based on the unique holotype, which has the 
following dimensions (in mm, see preceding description for explana- 
tion of symbols) : TL ca. 5.6; HL 1.00; HW 0.65; Cl 65; maxi- 
mum eye diameter 0.32; OI 49; minimum interocular distance 0.32 
(equal to eye diameter) ; PW 0.58; WL 1.36; petiolar node length 
at midline 0.72 ; maximum petiolar node width 0.62 ; postpetiolar 
length at midline 0.73; maximum width of postpetiole 0.65. Close 
to chapmani and gressitti, and agreeing with the original description 
of the latter, except in the following characters: 
