A SECOND AFRICAN SPECIES OF THE DACETINE 
ANT GENUS CODIOMYRMEX 1 
By Robert W. Taylor 
Biological Laboratories, Harvard University. 
Codiomyrmex Wheeler, sensu Brown 1948, includes 4 previously 
described, worker-based species: C. thaxteri Wheeler, 1916 (Bull. 
Mus. Comp. Z00L, 60 (8) : 327, Port of Spain, Trinidad) ; C. 
loveridgei Brown, 1953 (Am. Midi. Nat., 50 (1): 21-23, Nyika 
Plateau, Nyasaland) ; C. semicomptus Brown, 1949 (Breviora, 108: 
9-1 1, Shipton’s Flat, Queensland, Australia); and C. flagellatus 
Taylor, 1962 (Breviora 152: 7-9, Clump Point, Queensland, 
Australia). Several others originally described in the genus have 
been placed elsewhere by Brown (1948). 
Codiomyrmex tetragnathus new species 
Holotype. A unique worker taken in a Berlese funnel by a native 
collector of the Museu do Dundo: ANGOLA: Dundo, Route Tur- 
ismo (zb 7 0 02' S., 20° 51' E), Foret-galerie, R. Luachimo, 28-III- 
1962 (ANG. 16888). 
Type Deposition. Museu do Dundo, Lunda, Angola. 
Description. The holotype has the following dimensions (for para- 
meters of measurement and abbreviations see Brown, 1953) : TL c. 
2.4 mm; HL 0.62 mm; HW 0.49 mm; Cl 79; Scape length (SL) 
0.25 mm; ML 0.15 mm; MI 24; WL 0.60 mm. 
Cephalic dorsum as shown in Figure 2 ; occipital lobes well devel- 
oped ; short intervening transverse occipital border moderately arched, 
narrowly carinate. Center of frons elevated, convex, its lateral 
parts and dorsa of occipital lobes flat to feebly concave, extreme edges 
forming a slightly raised flange, contours smoothly rounded through- 
out. Clypeal disc flat, anterior portion sloping fairly abruptly to the 
shallowly emarginate leading edge. Antennal scrobes strong, com- 
pletely obscured in facial view, divided anteriorly by a narrow longi- 
tudinal ridge; ventral border cariniform, ending anteroventrally in 
a small tooth. Maximum ocular diameter 0.06 mm ; antennae as 
usual for genus (Figure 1). Mandibles strongly convex; rising from 
clypeus. Masticatory border bearing two sets of teeth: an apical 
3 Research supported U.S. National Science Foundation Grant No. GB 1634. 
Manuscript received by the editor September 7 , 1965 
225 
