84 U.S. NATIONAL MUSEUM BULLETIN 24 4 



1941). He reports in his diaries that he was on Mt. Shasta approxi- 

 mately from August 1 to September 1 and in Siskiyou County from 

 July 29 to September 15. 



Material EXAMINED.- — ^3 cfcT: 



UNITED STATES: California: Siskiyou County, 3 d^ cf , BM. 

 30. Hyaloscotes pithopoera (Dyar) 



Figures 28, 85, 161, 210, 272, 304, 352; Map 4 



Pachytelia [sic] pithopoera Dyar, Insec. Inscit. Menst., vol. 11, p. 3, 1923. 



Hyaloscotes pithopoera (Dyar) Jones, Ent. News, vol. 36, p. 164, 1925. — Dalla 

 Torre and Strand, Lep. Cat., pars 34, p. 197, 1929. — McDunnough, Check 

 List Lep. Canada and USA, pt. 2, no. 9533, 1939. 



Pachythelia pithopoera (Dyar) Dalla Torre and Strand, Lep. Cat., pars 34, p. 161, 

 1929. 



Hyaloscotus [sic] pithopoera (Dyar) Gaede in Seitz, Macrolep. World, vol. 6, p. 

 1185, 1936. 



Hyaloscotes sheppardi Freeman, Can. Ent., vol. 76, no. 9, p. 186, 1944 (new synon- 

 ymy). 



Male.' — (Fig, 28.) Considerably smaller than H.fumosa. Anten- 

 nae with 18-22 segments; pectinations relatively shorter than in 

 preceding species, appearing more stout. Foretibia without epiphysis. 



Primaries with R5 usually separate from base of R3+4, may be 

 connate as observed in one wing. Hind wing with M2 separate from 

 M3 in all specimens studied. Wing expanse 18-22 mm. 



Male genitalia. — (Fig. 272.) Apex of tegumen bluntly rounded. 

 Tip of sacculus with 2-6 spinules. Saccus rod-shaped, base not 

 expanded; relatively longer than in H. fumosa. Eighth sternite (fig. 

 210) with lateral margins strongly concave; furcations strongly 

 divergent. 



Female. — As described for genus. Genitalia (fig. 304) with inner 

 pair of sclerotized areas prominently forked at tapered, proximal ends. 

 Bursa elongate, slender. 



Case. — (Fig. 85.) 21-27 mm. length; 5-6 mm. greatest diameter 

 anteriorally, tapering gradually toward posterior end; covered longi- 

 tudinally with short pieces of leaves, grass blades. 



Types. — In the United States National Museum (H. pithopoera); 

 Canadian National Collection (H. sheppardi). 



Type locality. — Colhns, Idaho (H. pithopoera); Shawbridge, 

 Quebec (H. sheppardi). 



Eecorded hosts. — Probably feeds, at least in part, on grasses, as 

 evidenced by case construction. 



Distribution. — (Map 4.) Reported from the Appalachian High- 

 lands of the extreme Northeastern United States, west to the Rocky 

 Mountain System, from Colorado north to Alberta, Canada. 



