A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 177 



DISTRIBUTION 



From material examined : 



Maine: Mount Desert Island, June-July (William Procter), Bar Harbor, June 7, 



1921 (C. W. Johnson). Wissataquoik River, June 25, 1901 (H. F. Wickham). 

 Massachusetts: Framinghain, June 14, 1909 (C. A. Frost). North Saugus, 1906 



(F. H Mosher). Hatfield (H F. Wickham). 

 Michigan: Marquette, June; White Fish Point (Hubbard and Schwarz). 

 Minnesota: Lake Itasca, May (H. F. Wickham). 

 New Brunswick: Penobsquis, July 27, 1926 (C. A. Frost). Bathurst, July 10 



(J. N. Knull). 

 New Hampshire: White Mountains (Hubbard and Schwarz). Pike, June 27, 



1908 (W. F. Fiske). 

 New York : Cranberry Lake ; Syracuse. 

 Pennsylvania: Charter Oak, June 29, 1917 (A. B. Champlain) ; reared (F. C. 



Craighead). Hummelstown, June 18, 1918 (J. N. Knull). 

 West Virginia: No definite locality (F. E. Brooks). 

 Wisconsin: Cranmoor, May (Hardenberg). Bayfield (H. F. Wickham). Iron 



River, June 19, 1933. 



Also recorded in the literature from the above States and the follow- 

 ing localities : 



California: No definite locality (Woodworth 1913) (identification?). 

 Colorado: Rico and Leavenworth Valley (Wickham 1902) (identification?). 

 Ontario: Sudbury District (Evans 1895). 



Quebec: Terrebonne County, St. Johns County, and Montreal Island (Chagnon 

 1917). 



Chamberlin (1929) records this species as extending across Canada 

 into British Columbia, Yukon, and Alaska, and south into Washing- 

 ton and Oregon. 



Hosts. — Adults have been reared from pupae collected in dead 

 northern white pine (Pinus strobus Linnaeus) in Pennsylvania by 

 F. C. Craighead. Knull (1922) records the species as breeding in 

 eastern hemlock (Tsuga canadensis (Linnaeus) Carriere), and Felt 

 (1906) lists it under spruce (Picea sp.) borers. 



The color in the depressions on the dorsal surface of the body 

 varies from reddish cupreous to bright bronzy green, and on the front 

 of the head in the males from bright green to bronzy green. In some 

 examples the sides of the pronotum are slightly sinuate and nearly 

 parallel at the middle, with two or three depressions on each side 

 between the median sulcus and the lateral margin. The clypeus is 

 more shallowly emarginate in some specimens. In some specimens 

 examined the underside of the body has a rather distinct bronzy-green 

 reflection. The length is from 9 to 13 mm. 



LeConte (1857) erroneously records scabripennis as a synonym of 

 trinervia Kirby, and Gemminger and Harold (1867) place consimilis 

 Dejean as a synonym of scabripennis. Saunders (1871) places 

 proxima Kirby and scabra Gory as synonyms of scabripennis, but 

 scabra was described from a specimen in the Reiche collection from 

 South America, and either this specimen is wrongly labeled as to 

 locality or the synonymy is not correct. Chamberlin (1929) states 

 that proxima Kirby (1837) has priority over scabripennis Castelnau 

 and Gory, but there is some doubt about this statement. He gives 

 1838 as the date of publication for scabripennis, but plate 9 figuring 

 this species is dated 1837. 



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