REVISION OF NEARCTIC TERMITES, 183 



the Santa Catalina Mountains, Brush Corral Station (Chrisman), and 

 Sabino Canyon (Snyder and Hofer) ; desert near Tucson (Snyder) ; 

 and Nogales, Santa Cruz County (Snyder), in Calabasis and Aqua 

 Fria Canyons, (Snyder). 



In California the writer found workers of what is probably this 

 species at Arrowhead Springs, in San Bernardino County, on June 3, 

 1917. This colony was under a dead flower stalk of Agave lying on 

 the ground and under this in the ground. No soldiers could be 

 found. The workers were too large to be ^. californicus Banks, and 

 earthen tubes had been constructed through the dry, hollow interior 

 of the stalk. 



Later specimens of workers and soldiers of A. arizonensis were 

 found in the United States National Museum which had been col- 

 lected at Palm Springs (Riverside County), California, by H. G. Hub- 

 bard as early as March, 1897. Hubbard found them in colonies 

 under stones in canyons, and states in his field notes that they are 

 the commonest termite at Palm Springs. The flora and fauna at Palm 

 Springs (desert) are similar to Arizona. 



H. S. Barber found a colony of this termite at Ray Junction, 

 Arizona, on January 10, 1914. The workers were making earth-like 

 tubes on the stems of vegetation and on the roots under stones. 



M. Chrisman collected workers and soldiers of Amitermes ari- 

 zonensis, on September 23, 1914, at Brush Corral Station (elevation 

 4,000 feet), Santa Catalina Mountains, Arizona, on a dead mesquite 

 stump. The termites were under a dry mud coating at the base of a 

 stump, fallen limbs, twigs, etc., always on the dry wood. This 

 species does not excavate cells in the wood, but seems to eat ofl^ only 

 the exterior. These termites were first noticed in early August. 

 At that time the coating appeared fresh.- The termites were very 

 common under the coating, but no winged forms were present. 



On October 3, at this same locality, termites were collected in dry 

 cow manure. These termites were first observed in "cow chips" 

 on August 6. On October 3 they were excavating in the ground 

 beneath the chips. No young were present. 



The writer collected colonies of this termite in the desert near 

 Tucson, Arizona, on May 12, 1917. Workers, soldiers, and nymphs 

 of the first form with wing pads not fully grown were under dry cow 

 chips and in galleries in the ground under them. 



Similar colonies were found in Sabino Canyon, in the Santa Cat- 

 alina Mountains, on May 14, under dry cow chips. Near Nogales, 

 on May 20, 1917, in Calabasis Canyon, 15 miles west of Nogales, 

 workers and soldiers and nymphs of the first form were found in 

 colonies under dry cow chips. Colonies were also foimd in pasture 

 land at the mouth of Aqua Fria Canyon under dry mesquite brush. 



George Hofer also found colonies of this termite in Sabino Canyon 

 on January 9, and July 23, 1918, under cow chips. 



