Close-up view of mandibles, adult worker. The mandibles with seven teeth and denticles. Used in Antkey to separate Pachycondyla chinensis from Pachycondyla stigma and Hypoponera species.
Lateral view of waist, adult worker. Waist with only one segment. Photo by April Nobile, Antweb.org, modified.
Anterior view of antennal scape, adult worker. The antennal scapes are extremely long, their length measuring more than 1.5x the length of the head. Used in Antkey to separate Anoplolepis gracilipes and Paratrechina longicornis from other Formicinae genera.
Anterior view of head, adult worker. The head is uniform in color, not contrasting sharply with rest of body. Used in Antkey to separate Pheidole anastasii and Pheidole bilimeki from Pheidole punctatissima.
Anterior view of head, adult worker. The posterolateral lobes with a distinct punctate ground sculpture, giving the head a dull appearance, and also lacking rugae. Used in Antkey to separate the major workers of Pheidole anastasii, Pheidole bilimeki and Pheidole punctatissima from those of all other Pheidole species.
Lateral view of thorax / mesosoma, adult worker. The hairs on the mesosoma are stout and stiff, arranged in pairs. Used in Antkey to separate Pheidole anastasii, Pheidole bilimeki and Pheidole punctatissima from Pheidole flavens and Pheidole moerens.
Anterior view of head, adult worker. The posterolateral lobes with a distinct punctate ground sculpture, giving the head a dull appearance, and also lacking rugae. Used in Antkey to separate the major workers of Pheidole anastasii, Pheidole bilimeki and Pheidole punctatissima from those of all other Pheidole species. Photo by April Nobile, Antweb.org, modified.
Anterior view of head, adult worker. The head is uniform in color, not contrasting sharply with rest of body. Used in Antkey to separate Pheidole anastasii and Pheidole bilimeki from Pheidole punctatissima.
Anterior view of head, adult worker. Posterior margin of head relatively broad and flat. Photo by April Nobile, Antweb.org, modified.
Anterior view of head, adult worker. The posterior margin of the head generally flat and broad before arching towards eyes. Used in Antkey to separate Pheidole bilimeki from Pheidole anastasii and Pheidole.
Anterior view of head, adult worker. The posterolateral lobes with a distinct punctate ground sculpture, giving the head a dull appearance, and also lacking rugae. Used in Antkey to separate the major workers of Pheidole anastasii, Pheidole bilimeki and Pheidole punctatissima from those of all other Pheidole species.
Lateral view of thorax / mesosoma, adult worker. Hairs on mesosoma stout and stiff, arranged in pairs. Photo by April Nobile, Antweb.org, modified.
Lateral view of thorax / mesosoma, adult worker. The hairs on the mesosoma are stout and stiff, arranged in pairs. Used in Antkey to separate Pheidole anastasii, Pheidole bilimeki and Pheidole punctatissima from Pheidole flavens and Pheidole moerens.
Anterior view of antennal scrobe, adult worker. Antennal scrobe present. Used to distinguish the major worker of Pheidole fervens, Pheidole flavens, Pheidole moerens and Pheidole teneriffana from that of Pheidole obscurithorax. The last species lacks any depression capable of receiving any portion of the antennae.
Anterior view of head, adult worker. Posterolateral lobes with longitudinal carinae only occasionally being intersected by much shorter transverse carinae to form a patches of rugoreticulation. This character, combined with the presence of antennal scrobes, is used to separate the major worker of Pheidole fervens and Pheidole teneriffana from that of Pheidole obscurithorax (which has a much denser network of rugoreticulum).
Authors: Sarnat and Suarez
Migrated to idtools.org August 2025
Antkey archived on Scratchpad
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