After considering the accepted ideas concerning the wax glands of the Coccidae and Aphidae, the paper describes the structure of these glands in Pemphigus tessellata Fitch as an illustration of the unicellular form, (apparently the only form hitherto recognized ), and in Schizoneura cratagi Oestlund, as illustrating a complex gland.
Proceedings of the Iowa Academy of Sciences
©1889 Iowa Academy of Science, Inc.
"On the Wax Glands of the Pemphiginae,"
Proceedings of the Iowa Academy of Science, 1(Pt. 1), 64-65.
Available at: https://scholarworks.uni.edu/pias/vol1/iss1/33