Ferris, G.F. 1938a . Atlas of the scale insects of North America. Series 2. Stanford University Press Palo Alto, California

Notes: Descriptions and plates of 103 scale insects, 20 as new, including 14 diaspidine, 15 odonaspidine, 1 xanthophthalmine, and 73 aspidiotine in 34 genera, 6 presented as new.