The female of _Cryptocercus punctulatus_ was observed to make a groove in a piece of wood, then carry her oötheca 6 inches from where she had dropped it and place it in the groove; she covered the oötheca so that only a portion was visible (Cleveland _in_ Cleveland et al., 1934). Dr. W. L. Nutting (personal communication, 1954) collected a number of oöthecae of _C. punctulatus_ in the field and found each one almost completely sealed off with bits of wood in a deep groove in the roof of a chamber in a log. The keel of the oötheca was visible but the rest was well camouflaged. He stated that "The adult pair usually frequents the chamber at this time, while their broods of previous years occupy neighboring galleries." Berland (1924) observed a female of _Loboptera decipiens_ filling a hole (the abandoned nest of a hymenopteron) with earth that she carried in her mouth; he later found her oötheca behind the earthen barricade which she had erected. In summary, the following species of oviparous cockroaches have been observed concealing their oöthecae (only those references not previously cited are given): _Blatta orientalis_; _Cryptocercus punctulatus_; _Ectobius sylvester_ (Harz, 1956, 1957); _Epilampra_ sp.; _Eurycotis floridana_ (Roth and Willis, 1954a); _Loboptera decipiens_; _Balta scripta_, _Methana curvigera_, _Methana marginalis_, and _Methana caneae_ (Pope, 1953a); _Pelmatosilpha marginalis_, _Pelmatosilpha purpurascens_, and _Nauclidas nigra_ (Bunting, 1956); _Periplaneta americana_ (Haber, 1919; Adair, 1923; Seín, 1923; Nigam, 1933; Gould and Deay, 1938; Rau, 1940a); _Periplaneta australasiae_ (Girault, 1915b; Spencer, 1943; Pope, 1953); _Periplaneta brunnea_ (Roth and Willis, unpublished data, 1958); _Periplaneta fuliginosa_ (Gould and Deay, 1940); _Periplaneta ignota_ (Pope, 1953); _Supella supellectilium_ (Flock, 1941). Undoubtedly other oviparous species that drop their oöthecae long before the eggs hatch also make some attempt to conceal the oöthecae by placing them in crevices or covering them with debris.