742 



Bulletin Americon Musciwi of Natural History. [Yol. XXIII, 



this singular insect, I have had an opportunity of observing it in artificial 

 nests. It does not feed on the fimgus hvphpe as I at first supposed, but 

 mounts the backs of the large soldiers while they are stalking about the 

 garden and licks their surfaces after the manner of some of the myrme- 

 cophiles of other ants, notably the little cricket Mynnecophila nebra.tcensis, 

 the Staphylinid beetle O.vi/soma oherihiieri, and the guest ant Lepfothorax 

 emersoni. 



In 1901 Bolivar described a second species of Attaphila (A. hcrgi), which 



Fig. 16. Nest craters of Attn (Mwllcrius) versicolur Pergande in a sandy "draw" at Yucca, 

 Arizona. (Photograph by the author.) 



was discovered many years ago by Berg in the nests of Acromyrmex lundi 

 in Argentina and Uruguay. This species (PI. LIII, Figs. 50—54) is very sim- 

 ilar to the Texan form and it too, seems always to have multilated antennse. 

 According to Berg "it is found in the nest of the ants, sitting on the back, 

 neck or even on the head of the sexual individuals (never on the neuters), and 

 when these swarm forth during the spring or summer, it is also carried out 

 of the nests, still attached to its host." 



