. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 218 217 Figures 215-218. Pristomyrmex levigatus Emery. 215: Worker head, full-face view; 216: Worker, lateral view; 217: Queen head, full-face view; 218: Queen, lateral view. Mandibles usually smooth and shining but with a few fine longitudinal rugae in some specimens. A broad-based triangular short tooth present about midway on the basal margin of the mandible. Frontal area concave, usually unsculptured, but some- times with a weak median carina. Clypeus flat, unsculptured, smooth, and shining; its anterior ixiargin
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 218 217 Figures 215-218. Pristomyrmex levigatus Emery. 215: Worker head, full-face view; 216: Worker, lateral view; 217: Queen head, full-face view; 218: Queen, lateral view. Mandibles usually smooth and shining but with a few fine longitudinal rugae in some specimens. A broad-based triangular short tooth present about midway on the basal margin of the mandible. Frontal area concave, usually unsculptured, but some- times with a weak median carina. Clypeus flat, unsculptured, smooth, and shining; its anterior ixiargin with a median denticle and two lateral teeth, but sometiines the median tooth is weak or absent. Ventral surface of clypeus lacking any rugae or toothlike prominences. Palp formula 1,3. Frontal carinae distinct, extending to the level of the posterior margins of eyes. Scrobal impressions shallow, present lat- eral to the frontal carinae. Frontal lobes w^eak so that the antennal articulations are ahnost entirely exposed. Antennal scapes. when lying on the head, close to the oc- cipital margin. Eyes moderately sized, with five to eight ommatidia in the longest row. Dorsum of alitrunk in dorsal view flat in the lectotype but convex in some speci- mens. Pronotum unarmed or at most with blunt tubercles, lacking teeth or spines. Propodeum with a pair of triangular teeth or short spines that are slender, slightly in- curved at their apices in the lectotype. Me- tapleural lobes subtriangular or rounded. Petiole node in profile nodiform with the anterodorsal angle higher than die poster- odorsal; its anterior peduncle about as long as the node. Subpetiole with a narrow long flange. In dorsal view, the dorsum of pet- iole node transoval and broader than long. Postpetiole in profile higher than long, with a rounded dorsum, in dorsal view. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance o
Size: 2444px × 1022px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorharvarduniversitymuseumofcomparat, booksubjectzoology
