Bahadur, J. (1968). The structure and development of the Malpighian tubules of an aquatic bug: Sphaerodema rusticum Linnaeus (Hemiptera). Beiträge Zur Entomologie = Contributions to Entomology, 18(1-2), 239–247. https://doi.org/10.21248/contrib.entomol.18.1-2.239-247