Acromyrmex pubescens (Emery

Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 51

publication ID	21367
DOI	https://doi.org/10.5281/zenodo.6239946
persistent identifier	https://treatment.plazi.org/id/07998905-BD72-1456-60C3-54E75181646B
treatment provided by	Thomas
scientific name	Acromyrmex pubescens (Emery
status	REVISED STATUS

Treatment

Acromyrmex pubescens (Emery HNS 1905). REVISED STATUS.

Atta (Acromyrmex) pubescens Emery HNS 1905: 51. [w syntypes examined, MCSN, MHNG; Paraguay ( Balzán)] .

Acromyrmex lundi var. pubescens (Emery) HNS . Bruch 1914: 216.

Acromyrmex lundi st. pubescens (Emery) HNS . Santschi 1916: 386.

Acromyrmex lundi pubescens (Emery) HNS . Kempf 1972: 13.

Fowler (1985a) described the differing habitat associations of Acromyrmex lundii HNS and Acromyrmex pubescens HNS , noting that the former is found in open habitats and the latter in the patchy forest “islands” that occur in the chaco savannah. The two forms are sympatric and structurally similar, both bearing elongate lateral pronotal spines that are longer than the mesonotal spines. However, these ants are distinguishable in pubescence. Much of the integument of A. pubescens HNS is covered in a dense decumbent pubescence while the integument of A. lundi HNS is relatively bare. This difference is easiest to diagnose on the mesopleura, as the mesopleural pubescence of A. pubescens HNS comprises overlapping hairs, while that of A. lundii HNS is sparse and the hairs non-overlapping. Given the ecological and morphological differences in sympatry between these two forms, I elevate A. pubescens HNS to species here.