Downer, J.A., P. Svihra, R.H. Molinar, J.B. Fraser, C.S. Koehler. 1988. New psyllid pest of California pepper tree. California Agriculture March-April 30-32

Distribution Data from source:

Calophya schiniSouthwestern USACaliforniaLos AngelesLong Beach1984. North American record.

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