MANN: THE ANTS OF BRAZIL. 443 



on the mandibular blades. In living specimens the black color of the 

 gaster is in vivid contrast to the red of the other parts. 



100. Crematogaster (Cremaiogaster) brevispinosa Mayr. 



Several colonies of this well-marked species were taken at Itacoatiara 

 and Abuna, Bolivia. 



101. Crematogaster (Crematogaster) brevispinosa subsp. rochai Forel. 



This is common at Natal and Baixa Verde, where numerous colo- 

 nies were found. The workers agree closely with cotypes from Ceara. 



102. Crematogaster (Crematogaster) vidima F. Smith. 



Many colonies were found in hollow twigs at Natal, Baixa Verde, 

 Independencia, Para, and Madeira-Mamore Camp 39. 



103. Crematogaster (Crematogaster) sulcata Mayr. 

 Abuna, Rio Madeira. 



104. Crematogaster (Crematogaster) limata F. Smith. 



Common at Manaos and Porto Velho. A colony at the latter 

 locality was nesting in a leguminaceous pod. 



105. Crematogaster (Crematogaster) brasiliensis Mayr. 

 Manaos and Porto Velho. 



106. Crematogaster (CYematogaster) longispinosa Emery. 

 Many workers were taken at Abuna. 



107. Crematogaster (Crematogaster) acuta (Fabricius). 



Many workers are in the collection from Madeira-Mamore Camp. 

 39. 



