\'ol. Xxiii] ENTOMOLOGICAL NEWS. 12J 



and insects. Type locality, La Puerta, eastern edge of San 

 Diego County, California, October nth, 191 1. Five spec- 

 imens were sent to me by Mr. L. E. Ricksecker. who says 

 "they do not vary much. None of them have the spots in 

 actual bands, but always in distinct spots and all of these 

 are dirty white, not yellow. It so happens that !Mr. 

 Stephens has a single specimen of neumoegeni from the Hua- 

 chuca Mountains, Arizona. It has the broad orange, ful- 

 vous band and agrees with the description. Hence we think 

 the La Puerta specimens are a variety, and when you con- 

 sider the circumstances it looks to me very probable that it 

 will be found constant. ]\Iy reason is because the La Puerta 

 Agave district is entirely isolated from any other Agave 

 field and is a very long distance from the Agaves of south- 

 ern Arizona. There is little, if any, probability of individuals 

 going back and forth between the two districts and thus if 

 the La Puerta tribe or colony is left by itself it will gradually 

 produce a new form, variety or species." 



I have given Mr. Ricksecker's theory to account for this 

 strikingly different colored race. He says it feeds on Agave 

 deserti. 



Type in the collection of the Academy of Natural Sciences 

 of Philadelphia. 



Description of a New Variety of Smerinthus jamai- 

 censis (Lepid.). 

 By S. D. Nixox, Baltimore. Md. 



Smerinthus jamaicensis, n. var. flavitincta. 



Color of forewing same as type, only much hghter. Color of head 

 Hght brown. Body light slate color. 



Hindwing, cream color with tint of lemon near eyespots ; eyespots 

 same as in variety geminatus with two blue spots, the red missing en- 

 tirely. 



Type. — Male in my collection. 

 Habitat. — Baltimore, Maryland. 



