. MANN: THE ANTS OF BRAZIL. 447 



112. Solenopsis picea Emery var. subadpressa Forel. 



This variety, somewhat larger than the typical Costa Rican form, 

 was described by Forel from specimens collected by Sr. Diaz da Rocha 

 at Ceara. Specimens which agree well with cotypes in the Wheeler 

 collection were taken at Porto Velho, Abuna, and Madeira-Mamore 

 R. R. Co. Camp 39. 



113. Solenopsis glohularia (F. Smith). 



One colony with numerous workers and females was found at Natal. 

 The large size and globular shape of the postpetiole distinguish this 

 from related species. 



114. Solenopsis subtilis Emery. 

 One small colony was taken at Manaos. 



115. Sole7iopsis geminata (Fabricius). 



Colonies of the typical form of this widely distributed species were 

 found at Natal, Independencia, Baixa Verde, Itacoatiara, Manaos, 

 and Porto Velho. 



116. Solenopsis geminata (Fabricius) subsp. medusa, subsp. nov. 



Plate 4, fig. 31. 



In a number of colonies from Ceara-Mirim and the Maranguape 

 mountains the largest headed of the soldiers differ from those of 

 typical S. geminata in having the sides of head at the anterior corners 

 broadly expanded, as shown in Plate 4, fig. 31. 



I can detect no character in the smaller soldiers and workers that 

 will distinguish them from the same phases of S. geminata, but the 

 difference between the largest soldiers is striking and constant and 

 seems to be of subspecific value. It is probably a local race, limited 

 to the east coastal region of Brazil. 



117. Solenopsis saevissima (F. Smith). 



Very abundant at Para, Itacoatiara, and Manaos in Brazil and at 

 Abuna, Boh via There can be no doubt that this species is the one 



