June, 19:8.] NiCOLAY & WeiSS : RuTRESTIS IN NORTII AMERICA. 83 



prospera Casey, og-122. 



affinis Casey, 09-123. 



adulans Casey, 09-123. 



Elongate, sub-oval. Elytra pale green to ultramarine, suture and lateral 

 margins generally cupreous but absent in extreme forms, feebly inflated sub- 

 posteriorly, tips not bidentate, four elytral cost^e, suture and margin elevated, 

 elytral costae convex, their summits polished and not punctate. Antennae 

 metallic green or bronzed. Head and pronotum green with more or less 

 bronze at sides, head deeply and confluently punctate with a distinct median 

 costa, pronotum deeply, densely but distinctly punctate, more or less im- 

 pressed medially. Beneath metallic green or bronzed, presternum coarsely 

 and densely punctate, abdomen finely punctate. Male slightly narrower than 

 female and having abdomen more closely punctate, abdomen of female 

 sparingly punctate. Tip of abdomen sub-truncate in both sexes. Length 

 14-19 mm. 



Records. — Yellowstone Park. July 21 (Zabriskie) ; Wyoming, 

 Divide, Lane County; Ashland: Sulphur Springs, August 2 (Jones): 

 Dilley; Corvallis, May (Green); Ranier, July, August; Coast Mts., 

 April (Chamberlin) ; Oregon. Priests River. June 21 (Wickham) ; 

 Atalanta, June, 7800 ft.; Idaho. Utah (Barfoot). Santa Fe 

 (Snow); Gallinas Caiion (Snow); Las Vegas (Ward); Las Vegas 

 Hot Springs (Schwarz & Barber) ; New Mexico. Carrville, Trinity 

 County, July l (Van Dyke) ; San Bernardino Mts., July 3 (May) ; 

 Camp Nelson, Tulare County, 4700 ft., August i (Beardsley) ; Quincy, 

 July I (Radcliffe) ; Mendocino County; Mt. Lowe, August 8 (Coxey) ; 

 Tulare County; Sylvania, Huckleberry Meadow, Fresno County, 

 August; McCloud, July 2 (Van Dyke); Yreka (W. Duenkel) ; 

 California. Nevada. Montana. Arizona. Yuka, August; Colo- 

 rado. Port Townsend, August (Seaton) ; Seattle, July; Washing- 

 ton. Victoria, B. C, July 20 (Osborne) ; Vancouver Island, B. C, 

 July 7 to 12; Calapooia Mts., 1400-1600 ft., August 11; Kaniloops, 

 B. C. ; Beaver Mouth, B. C, July 14; Canada. Common from Br. 

 Col., to southern California. (Chamberlin.) Breeds in Douglas fir, 

 yellow, lodge pole, sugar and Monterey pine and western red cedar 

 (Thuja pUcata). (Chamberlin.) This species mines yellow pine 

 and Jeffrey pine in the Rocky Mountains and Pacific States. Injury 

 similar to that of Biiprcstis apricaiis. Entrance is made through 

 wounds in the bark. Lightning struck trees are especially subject to 

 attack. Adults emerge in spring and early summer. (Burke.) 



Mr. W. J. Chamberlin informs us that he has bred extensive 



