1907.] 



Wheeler, Fungus-gromug Ants of North America. 

 Atta {MycctosorUcs) hartmanni sp. nov. 



763 



The galleries are proportionally longer than those of turrijex nests in 

 clay or black soil, and the chambers are absolutely smaller and more oblately 



Fig. 28. One of the pendent fungus gardens of the nest shown in the preceding figure, 

 slightly enlarged. (Photograpli by Mr. C. G. Hartmann.) 



spheroidal. On an average, however, the Mi/cctosoritis nests are fjuite as 

 <leep (55.1 cm). Their resemblance to iurrifex nests in pure sand, like nest 



