316 



destructive to the flowers of white sage. This may or may not apply 

 to this species, since the label was not attached to a specimen. 



3. Platyptilia cri:ni:lata Barnes & McDunnough. PI. XLI, fig. 15. 



PL L, f^g. 5. 

 Platyptilia crenulata Barnes & McDunnough, Cont. Nat. Hist. Lep. N. A. II, 185, 

 pi. Ill, f. 8, 1913. 

 Id., Check List 150, 1917. 

 Grossbeck, Bull. Am. Mus. Nat. Hist. XXXVII, 135, 1917. 



Brownish gray in general appearance, thorax behind and base of abdomen 

 whitish. Abdomen more tawny, with whitish scales and black dorsal dots in 

 posterior margins of some segments. Palpi and antennae concolorous with 

 liead, second joint of the former with a slight scale tuft projecting beneath 

 the rather prominent third joint. Fore and mid tibiae brown and white striped, 

 not banded as in marmarodactyla: tarsi dark on one side. Hind legs evenly 

 drab. 



Primaries tawny gray at base, becoming darker outward, more or less 

 marked with brown and whitish scales. A vague dark triangle on costa before 

 cleft, apically produced. First lobe crossed by a white line at its outer third, 

 whence a heavy dark dash and a dark costal shade run toward base, the latter 

 containing a smaller dash. Tlie region into which these dashes run is pale, as 

 in marmarodactyla, but less conspicuous. Terminal area with some whitish 

 scales. Second lobe with whitish scales and a vague indication of a white line. 

 Fringes whitish to grayish tawny, with black scales along inner margin and a 

 basal row on tlie conspicuously wavy outer margin. Secondaries gray-brown 

 with concolorous fringes. Inner margin of third lobe with scattered black 

 .scales and a variable tuft just before apex. Expanse 9-16 mm. 



The form of tiie male genitalia shows that this species is more 

 closely related to pitnctidactyla than to marmarodactyla, and this is 

 born out by a close examination of the superficial characters. In gen- 

 eral habitus, however, it agrees rather better with the latter species. 



Distribution : Described from a series of six specimens, a type 

 i and five "cotypes", from Ft. Myers, Chokololcskee and Everglade, 

 Fla.. taken in April and May. We are able to add Arizona and south- 

 ern California to its range, and it probably occurs in the intervening 

 Gulf States. We have but one Californian specimen from San Diego, 

 and one from Yuma Co., Ariz., May. The cotype of marmarodactyla 

 which belongs here was taken in the Santa Rita Mts., Ariz., in May. 

 A superficial examination of the genitalia of this specimen, which is 

 now before us, proves beyond a doubt that we are right in separating 

 it from the remaining cotypes. 



Nothing is known of the early stages. 



