CHAPTER IX. 



This collection, though small, is of much interest, as indicating what 

 we may expect from Arizona when more is known of its fauna. Two of 

 the species here enumerated range into Costa Rica and three into Mexico ; 

 two of them as far north as Portland in Oregon, and only one seems to be 

 peculiar to Arizona. This linking of the United States to the tropical fauna 

 of Central America and Mexico may largely swell the list of United States 

 species. Nor should it be lost sight of that while the Mexican forms range 

 into Arizona, the Gulf of California appears to have proved a barrier to 

 their distribution in California. A number of specimens still remain to be 

 identified in this collection. 



BOMBYCIDAE. 



AROTIINAE. 



EUCHAETES, Harris. >, 



EUCUAETES ELEGAN8, xp. nov. 

 PLATE XL, FIGS. 5, 6. 



t? . White. Head and palpi white, the latter rosy at the base, and the 

 former very narrowly rosy behind, particularly near the eyes. Antennae 

 white ; pectinations black. Prothorax, patagia, and thorax white. Abdo- 

 men rosy above ; dusky white beneath, with a faint dorsal row of whitish 

 spots, centered with dusky, and a lateral row of black spots. Legs whitish, 

 with the coxae of the anterior pair pale rosy. Wings pure glossy white, 

 immaculate. 



7U7 



