Key to US Acanthostichus species

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Key to workers of Acanthostichus species known from the United States. Acanthostichus davisi is not included as it is known only from males.

1

Acanthostichus punctiscapus casent0103132 profile 1.jpg
  • Scapes and dorsal surfaces of the head and mesosoma smooth and with at most very few scattered punctures => 2

2

Acanthostichus arizonensis casent0103128 profile 1.jpg
Acanthostichus texanus casent0105578 profile 1.jpg