. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figures 59-60. Gasters of Pristomyrmex workers, lateral view. 59: Gaster of P. simplex sp. n.; 60: Gaster of P. obesus Mann. Dorsum of petiole node laterally com- pressed and in dorsal view distinctly longer than broad (Fig. 41 A) (Asia: New Guinea) longus (p. 502) Dorsum of petiole node not laterally compressed and in dorsal view about as broad as or broader than long, not longer than broad (Fig. 40A) 7 Dorsum of alitrunk unsculptured, smooth and shining. Dorsum of head between frontal carinae usu- ally smooth and sh
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figures 59-60. Gasters of Pristomyrmex workers, lateral view. 59: Gaster of P. simplex sp. n.; 60: Gaster of P. obesus Mann. Dorsum of petiole node laterally com- pressed and in dorsal view distinctly longer than broad (Fig. 41 A) (Asia: New Guinea) longus (p. 502) Dorsum of petiole node not laterally compressed and in dorsal view about as broad as or broader than long, not longer than broad (Fig. 40A) 7 Dorsum of alitrunk unsculptured, smooth and shining. Dorsum of head between frontal carinae usu- ally smooth and shining (Fig. 61), except for a few punctures border- ing frontal carinae 8 Dorsum of alitrunk with some scattered foveolate punctures. Dorsum of head between frontal carinae with scattered foveolate punctures or fo- veolate-reticulate sculpture (Figs. 62-64) 12 10. 11. 12(7). Eyes smaller, with two to three omma- tidia in the longest row (Asia: New Guinea) boltoni (p. 492) Eyes larger, usually with five to seven ommatidia in the longest row 9 Larger species, with HW and HL (Pacific Is.: Pohnpei I.) largus (p. 497) Smaller species; HW < , HL < 10 I Ventral surface of petiole with a long I pinlike process (Fig. 42) (Pacific Is.: New Hebrides) acerosus (p. 491) Ventral surface of petiole without a long pinlike process (Figs. 40, 41, 44) ... 11 Each side of petiole with a longitudinal carina that separates the tergite from the sternite (Fig. 40). Basal margin of mandible with a short, broad toodi (Fig. 28) (Asia and Pa- cific Is.: Papua New Guinea, Solo- mon Is., Nama Is., New Britain Is.) levigatus (p. 499) Sides of petiole unsculptured and smooth, lacking a longitudinal carina (Fig. 44). Basal margin of mandible with a prominent tooth (Fig. 29) (Pacific Is.: Fiji) mandibularis (p. 505) Entire first gastral tergite evenly clothed with numerous erect or suberect hairs (Fig. 60) (Pacific Is.: Solomon Is.) obesus (p. 509) Only a few hairs present usu
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