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Key to US Acanthostichus species
Key to workers of Acanthostichus species known from the United States. Acanthostichus davisi is not included as it is known only from males.
1
- Scapes and dorsal surfaces of the head and mesosoma densely punctate (head less so) => Acanthostichus punctiscapus
- Scapes and dorsal surfaces of the head and mesosoma smooth and with at most very few scattered punctures => 2
2
- Dorsum of petiolar node densely and finely punctate. Eyes relatively small and round => Acanthostichus arizonensis
- Dorsum of petiolar node smooth. Eyes relatively large and elongate => Acanthostichus texanus
