OF WASHINGTON, VOLUME XIV, 1912. 73 



Macromischa subditiva Wheeler. 



On January 7 a colony, composed of queen, workers and 

 eggs, was found under bark of willow (Mitchell). 



Cryptocerus angustus Mnyr. 



A colony was found in an oak twig gall, January 5, 1907. 

 On March 19, 1909, a colony, composed of 3 queens, soldiers, 

 workers, larval, and eggs, was found in a dead twig of Xan- 

 tho.\ylnm clavaherculis. On April 6 another colony with 

 larva was found in a dead pecan twig on the tree, and on May 

 18 a colony with larvae and pupae was taken in a dead twig- 

 on a live oak tree. On October 25 a colony in live-oak twig 

 was found with adults and pupae only. March 16, 1911, two 

 colonies were taken from live oak twig galls of Amphibolips 

 (Mitchell). 



Strumigenys louisianae Roger. 



On March 6, 1909, a populous colony with larva 1 w;is 

 found in a lepidopterous burrow in mit&leioe^Phoradendron 

 Jlaresceiit). On March 19 workers were found in the roots 

 of Chcnopoditini (Mitchell). 



Atta texana Buckley. 



On July 23, 1904, a colony of this leaf-cutter ant was visited, 

 which was doing considerable damage to beans. They were 

 not injuring the leaves, but were cutting portions of the bean- 

 pod hulls. A very large caste were guarding the entrance 

 to the holes, a slightly smaller caste were doing the cutting, 

 the next caste were picking up the cut bits and carrying them 

 in, and two smaller castes were carrying out dirt (Pierce). 

 In May, 1892, a large number of winged forms passed from 

 north to south on Main street, Victoria. The swarm was 

 about 30 feet long and over 8 feet wide. They traveled south 

 in a zigzag path for two blocks and then began flying away 

 singly. On one occasion a large mass of these ants was 

 observed floating in the Guadelupe River. The mass was 

 about 2 feet across, and the ants were clinging to each 

 other; They had drifted into quiet water and were held by 

 debris (Mitchell). 



DOLICHODERID^. 



Dorymyrmex pyramicus Roger. 



This species nests in hard ground on the prairie. The 

 workers are very quick and secretive in their actions. 



