172 BULLETIN 108, UNITED STATES NATIONAL MUSEUM. 



December 31. Large batch of eggs and recently hatched young. 



January 3, 1918. Large cluster of eggs. 



January 21. Large cluster of eggs and recently hatched young. 



February 19. Eggs and recently hatched young. 



December 2. Eggs and young. 



Since then, while numerous eggs and young have been found every 

 month of the year in this artificial colony maintained indoors, no 

 forms with wing pads or wings have developed up to May 1919, 

 after nearly four years of breeding. The colony is increasing in 

 numbers and is healthy. 



The egg is white, reniform, and approximately 0.68 mm. in length. 



References to biological or economic literature. 



1877. OsTEN Sacken, C. R. Proc. Bost. Soc. Nat. Hist., vol. 19, pp. 72-73 (for Jan. 



3, 1877), June (Tcrmes, species.). 

 1898. OsBORN, H. Proc. Iowa Acad. Sci., vol. 5 (for 1897), p. 231 (Termes flavipes 



Kollar). 

 1916a. Snyder, T. E. Farmers' Bull. No. 759, U. S. Dept. Agric, Oct. 9, p. 6, fig. r, 



{Leucotermes lucifugus Rossi). 



RETICULITERMES HESPERUS Banks. 



For taxonomy see pp. 50-51. 



This species is apparently restricted to Washington, Oregon, Cali- 

 fornia, and Nevada. It is distributed over a wide area in the Pacific 

 Coast region, occurring from Spokane and Wenass Valley, Washing- 

 ton (Henshaw), south to Campo and San Diego, California (Snyder), 

 on the border of Lower California and the United States, and east to 

 Elko, Nevada. It does not occur east of the general region of the 

 Sierra Nevada Mountains and the Great Basin. 



The long-headed soldier of this termite is distinctive. However, 

 there is a difference in the length of the heads of soldiers of R. liesperus 

 from different colonies, some being long-headed and others short- 

 headed. These differences correspond to the round-headed and flat- 

 headed soldiers of K. schwarzi Banks, and K. jouteli Banks, from the 

 same colony. Indeed, it might be said that these species have two 

 types of soldiers. 



This species has been found at other localities as follows: 



Oregon: The Dalles, Wasco Comity (Henshaw); Keno, EUamath 

 County (in the roots of sage brush, Snyder); and Ashland, Jackson 

 County (Snyder). 



California: McCloud, Siskiyou County; Samoa, Humboldt County 

 (H. S. Barber); The Geysers, Sonoma County (Osten Sacken); Placer- 

 ville, Eldorado County (J. J. Sullivan) ; San Francisco, Golden Gate 

 Park (Snyder); Alameda County (winged adults), November; Los 

 Gatos; Mountain View (winged adults, Ehrhorn); Palo Alto; San 

 Jose (Feb., 1872, I. Bush, winged adults), also San Jose (Dec. 7, 

 1881, Bush, swarming) — all in Santa Clara County; Del Monte, in 

 Monterey County (Snyder); Little Bear Lake, San Bernardino 



