:vri 



6. Adaina ambrosiae Alurtfeldt. PI. XLII, fig. 5, 6. PI. L, fig. 4. 



Ocdematophonis ambrosiae Murtfeldt, Am. Ent. Ill, 236, 1880 (biol.). 



Dimmock, Psyclie III, 403, 1882. 



Hy. Edwards, Bull. 35, U. S. N. M. 137, 1889. 

 Alucita ambrosiae Femald, Smith's List Lep. N. A. 87, 1891. 

 §Oedematiis ambrosia Murtfeldt, Proc. Nat. Sci. Club 13, 1896. 

 \Pterophorus inquiiwtus Femald, Pter. N. A. 56, 1898 (in part). 



Id., Bull. 52 U. S. N. M. 447, 1902 (in part). 



Meyrick, Gen. Ins. C, 17, 1910 (in part). 



Id., Wagner's Lep. Cat. pars 17, 25, 1917 (in part). 



Walsingham, Biol. Cent. Am., Lep. Het. IV, 446, 1915 (in part). 



Barnes & McDunnough, Check List 151, 1917 (in part). 

 Pterophorus ambrosiae Femald, Pter. N. A. pi. VI, ff. 14-17, 1898. 

 Pterophorus perplexus Grossbeck, Bull. Am. Mus. Nat. Hist. XXXVU, 136, 

 1917. 

 Head brownish, pale grayish white between antennae. Antennae with a 

 dark line, sometimes broken, above. Palpi, small, slender, oblique, brown on 

 sides. Thorax whitish to gray-brown. Abdomen similar, somewhat tawny in 

 our series but this may be due to stain. There are single black dorsal dots on 

 the posterior margins of most segments and a few blackish streaks, all some- 

 times obscured by a variable mixture of brown scales. Sides roughened, with 

 many brown scales. Under surface with a central stripe fonning dots on hind 

 margins of segments. Front legs white, tarsi brown inside, femora and tibiae 

 striped. Middle pair similar, tibia with a slight trace of median tuft. Hind 

 legs with scattered brown scales and annuli. 



Primaries gray, frequently tawny in first lobe and a little before. Entire 

 wing irrorate with brownish black scales which tend to collect along the veins 

 and in blotches near inner margin, often reduced on first lobe and increased 

 on second. A few pale scales before cleft are preceded by a black dash, some- 

 what triangular, outwardly concave, and often produced toward the nearest costal 

 spot. This is heavy and usually conspicuous, and is followed aliout half way 

 to the apex by a smaller black spot. These are continued through the otherwise 

 pale costal fringes. In addition the costa of the first lobe is sometimes marked 

 with two dots, one before and one beyond the outer spot, which do not enter 

 and fringes. Apex of first lobe and inner margin before apex with black dots. 

 Fringes of inner margin of first lobe pale with two dark patches at outer end 

 which contain a basal row of black scales. Fringes of second lobe gray brown, 

 cut with four pale areas at apex and before it on inner margin. The two outer 

 dark areas thus formed have black basal scales. Secondaries and their fringes 

 brownish gray. All characters except the larger spots of the primaries are 

 more or less variable. Expanse 14-20 mm. 



Distribution : Fla. to Pa., west to S. Cal. and Ariz. In the 

 northern parts of its range it appears chiefly in Aug. and Sept., in the 

 south and on the Pacific Coast March to July, Sept., Nov. according 



