K0.1376. LEPIDOPTERA OF THE KOOTENAI DISTRICT— DIAR. 923 

 PLATYPTILIA TESSERADACTYLA Linnaeus. 



Two !:>pccimens, July 20 (Bear Lake Mountain), August 1 1 (Kokunoc 

 Mountain). 



PLATYPTILIA CARDUIDACTYLA Riley. 



Five specimens, June 5, 23, July 21 (Bear Lake), Aut^u.st 5, and one 

 from Mr. Cockle's collection, June 24. 



OXYPTILUS NINGORIS Walsingham. 



Seven specimens, June 25, 27, 2!), Aug-ust 3. The young larva- were 

 found webbing- the heads and deforming the leaves of a wooly herba- 

 ceous plant with milky juice, Hieracluin, alhijionun. The larvtv were 

 very small but made a great showing as the whole head of the plant 

 is webbed and distorted, the leaves crumpled and the flower shoot does 

 not grow up as it normally would. 



Larva. — Head small, bilobed, pale hone}^ yellow, mouth pointed. 

 Body robust, tapering a little at the ends, feet normal, slender, dilated 

 at the ends as usual in the Pterophorida*. Primar}' hairs simple, 

 coarse, white, i and ii closelj" approximated, the tubercles black; iii 

 single, iv and v closely approximated, vi single, the tubercles l)rownish 

 ringed. Numerous small secondaiy hairs all over, white, short, 

 broadly clavate tipped. Olivaceous green, the food dark; skin densely 

 covered with minute black, fiat gramdes; spii-acles lilack ringed. 

 Later there is a deep brown spot on tul)ercle i+ii. 



Pupa. — Attached by the anal extremity, free; pale yellow, the tuber- 

 cles like those of the larva, the dorsal ones colored red. The young- 

 larva is without the capitate secondary hairs. 



OXYPTILUS TENUIDACTYLUS Fitch. 



Two specimens, June 28 (bred). The larvie occured on the thiml)le- 

 berry {Rulua wdhmus) with the normal structure and coloration. 

 I have described them from New York specimens on blai-kherry." 



PTEROPHORUS ANGUSTUS Walsingham. 



Thirty-three specimens, June 1», 10, 11, 18, 20, 21, 28, 24, 25, 

 30, July 11 (Aiusworth), 24, 25, and one from Mr. Cockle's collection 

 June 10, 1902. The moths were easily started up from low grass and 

 weeds, but especially from the plant Anaphalis //tan/tira/accd, which I 

 suppose is their food plant. Larva? were found connnonly in the 

 flower heads of this plant, but unfortunately were not bred. The 

 following is a description of them: 



Larva. — Head shining br()wn-l)!ack. hilolicd, the cIn ih'u-- n-adiing 

 vertex, rounded at top: mouth poiiitt'(l. Body rottii>t. tl;ill»Mn«l. 



« Psyche, VIII, 1898, p. 249. 



