Citations: H. S. 1921: [Johnson, J. S.] Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia, Philadelphia 32, S. 63-64, B15 10004
Osborn, H. 1937: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 1 Columbus, Ohio, Published by the Author, 1-394 S., B15: 6024, pp. 222
Skinner, H. 1920: [Johnson, J. S.] Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia, Philadelphia 32, B15 10004, pp. 63-64