Cooley, R.A. 1898 New species of Chionaspis and notes on previously known species.. Canadian Entomologist 30: 85-90.
Notes: C. lintneri betulae n. var., C. caryae, C. lounsburyi, C. howardi, n. spp.; notes on 2 described species.
Download PDFCooley, R.A. 1898 New species of Chionaspis and notes on previously known species.. Canadian Entomologist 30: 85-90.
Notes: C. lintneri betulae n. var., C. caryae, C. lounsburyi, C. howardi, n. spp.; notes on 2 described species.
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