Key to Temnothorax longispinosus species group workers

This worker key is based on: MacKay, W. P. 2000. A review of the New World ants of the subgenus Myrafant, (genus Leptothorax) (Hymenoptera: Formicidae). Sociobiology. 36:265-444.

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 * Temnothorax
 * New World Temnothorax species groups
 * Temnothorax longispinosus species group synopsis

1

 * Head mostly smooth and shining . . . . . 2


 * Head covered with coarse rugae or striae . . . . . 3

2
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 * Mesosoma coarsely sculptured, with mixture of rugae and punctures . . . . . Temnothorax longispinosus


 * Mesosoma finely sculptured, nearly smooth . . . . . Temnothorax tuscaloosae

3
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 * Larger species, total length over 3mm; bicolored (head and gaster dark, mesosoma lighter); New Mexico . . . . . Temnothorax josephi


 * Smaller species, total length less than 3mm; rarely bicolored; widely distributed . . . . . Temnothorax rugatulus