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U.S. NATIONAL ISIUSEUM BULLETIN 25 5 



Map 10. — Distribution of Prodoxus coloradensis. 



Distribution (map 10). — A rather common species, found over a 

 great part of the southwestern United States, from western Texas to 

 southern California, thence north to southern Nevada and Colorado. 



Discussion. — ^As discussed in the introduction (p. 1), ''Prodoxus^* 

 reticulatus has been transferred to the genus Lampronia of the Incur- 

 variinae. The evidence necessitating this new placement also indi- 

 cates that reticulatus is in no way associated with plants of the genus 

 YvA^ca. Riley, however, has introduced some confusion into the host 

 relationships of this moth. In one of his last papers on the Pro- 

 doxinae, Riley (1893b) reported a female specimen of P. reticulatus 

 collected by Trelease at Arrow Springs, Calif., from the flowers of 

 Yucca whipplei variety graminijolia. Riley further mentioned that 

 the specimen was interesting "in that it shows some variation in the 

 direction of coloradensis, especially by the separation of the basal half 

 of the M -shaped band" (1893b, p. 306). 



Unfortunately, the present location of Trelease's specimen is not 

 known; otherwise, the confusion introduced by Riley probably could 

 be quickly settled. Because I strongly beheve that reticulatus is not 

 a yucca moth and because of the superficial similarity which exists 

 between it and coloradensis, I regard Riley's note as a reference to 

 the latter species; in other words, a misidentification was made. 

 Furthermore, a consideration of the extreme variation in wing pattern 



