Acromyrmex (Moellerius) balzani Emery myersi

Neal A. Weber, University of North Dakota, 1936, The biology of the fungus-growing ants. Part. I. New forms. 1, Revista de Entomologia 7, pp. 378-409: 408-409

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Acromyrmex (Moellerius) balzani Emery myersi


Acromyrmex (Moellerius) balzani Emery myersi   HNS   ,

subsp. nov.

Worker maxima: Length 6 mm. - Head deeply incised, occipital angles rounded, with moderately developed spine and several low and barely distinguishable tubercles of which only one is very distinct. Antennal scapes failing to reach occipital angles by a distance equal to between 2 and 3 times their maximum width. Dorsum of first gastric segment with large tubercles irregularly arranged but absent from medial region. Head, except occipital region, sparsely rugulose. Mesonotum sparsely rugulose, sides of thorax smooth except for slightly rugulose sutures. Surfaces of body pruinose. Hairs short, sparse, curved. Dull ferruginous.

Described from 1 worker maxima taken on the Southern Rupununi Savannahs, British Guiana, November 11, 1935, by Dr. J. G. Myers (No. 5606).

Differing from the typical form in reduction of occipital tubercles and in pruinose body, from the variety senex Santschi   HNS   in less rugulose body, and from the variety multituber Santschi   HNS   in nearly smooth occipital region.