petiolar node
petiolar node relatively thick
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The petiolar node is relatively thick in profile. Used in Antkey to separate Tetramorium simillimum from Tetramorium caldarium. The character, as it is presently defined, is ambiguous and requires a more detailed examination before its usefulness is confirmed.
petiolar node relatively thin
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The petiolar node is relatively thin in profile. Used in Antkey to separate Tetramorium caldarium from Tetramorium simillimum. The character, as it is presently defined, is ambiguous and requires a more detailed examination before its usefulness is confirmed.
petiolar node with apical spine
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The petiolar node is armed with a apical single, weakly posteriorly protecting spine. Used in Antkey to separate Odontomachus simillimus and Odontomachus ruginodis from Anochetus mayri.
distinct peduncle and node
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The petiole has a clearly separate and distinct peduncle and node. Used in Antkey to separate from many myrmicine genera from Crematogaster.
petiolar node with convex dorsum
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The petiolar node has a convex dorsal face and the dorsal profile slopes anteriorly. In Antkey used to separate Crematogaster obscurata from Crematogaster scutellaris.
petiolar node with flat to concave dorsum
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The petiolar node has a flat to concave dorsal face. In Antkey used to separate Crematogaster scutellaris from Crematogaster obscurata.
petiole node excised medially
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The petiolar node is excised medially to form a pair of dorsolateral spines.
petiole flattened
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The petiole appears flattened and lacks a distinction between the peduncle and the node. Used in Antkey to separate Crematogaster from many other myrmicine genera.
propodeum and petiole armed
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The propodeum and petiolar node both armed with a pair of short teeth. Used in Antkey to separate Dolichoderus thoracicus from other species of Dolichoderinae and Formicinae.
propodeum and petiole unarmed
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The propodeum and petiolar node both lacking a pair of short teeth. Used in Antkey to separate various species of Dolichoderinae and Formicinae from Dolichoderus thoracicus.