Michel (1935) stated that the development of air transportation brought the same insect dispersal problems that exist in land and water transportation; in addition, the problem of cockroach infestation had become a very serious one, quite aside from the hygienic point of view, because it had been discovered that these insects seek out the wings of airplanes, where they subsisted on the glue and dope used in airplane construction. However, Dethier (1945) found no cockroaches in dismantled or wrecked wing and tail structures of metal aircraft in central Africa. In fact, all-metal aircraft would seem to provide little in the way of food or water for stowaway cockroaches. Laird (1951, 1952, 1956a) found living specimens of _Blattella germanica_, _Periplaneta americana_, and _Periplaneta australasiae_ in baggage compartments and/or kitchens in aircraft. Other species which have been recovered from undisclosed spaces in aircraft are listed below. Some of the cockroaches that were reported as dead may not have died from exposure during flight but may have been killed by insecticide applied by inspecting personnel at the airports. COCKROACHES ASSOCIATED WITH AIRCRAFT In the following list we include some previously unpublished data on cockroaches that were recovered from aircraft in Miami, Fla., International Airport from 1 July 1956 through 30 June 1957 (Porter, personal communication, 1958). These data were lumped under the entry Orthoptera without breakdown to species in Porter (1958). Species reported by Hughes (1949), and cited below as from southern United States, were recovered from aircraft that arrived at Brownsville, Fort Worth, Miami, New Orleans, and San Juan. There was no way of linking a specific record with any particular city. The comments we made above about species that are infrequently encountered on ships apply with equal validity to similar species found on aircraft. =Anaplecta= sp. _U.S.A._--One live and 15 dead specimens recovered from 16 aircraft at Miami (Denning et al., 1947). =Blatta orientalis= _U.S.A._--Six live and four dead specimens recovered from six aircraft at Miami (Denning et al., 1947). Southern U.S. (Hughes, 1949). =Blattella germanica= _Hawaii._--Williams (1946a). _Khartoum._--Whitfield (1940). _New Zealand._--Laird (1951, 1952, 1956a). _U.S.A._--At Miami 193 live and 184 dead specimens were recovered from 141 aircraft (Denning et al., 1947). Recovered at airports in southern U.S. (Hughes, 1949). Recovered at Miami, 51 live and 24 dead specimens (Porter, personal communication, 1958). Exposed experimentally in jet aircraft (Sullivan et al., 1958). =Blattella= sp. _Khartoum._--Whitfield (1940). _Southern U.S._--Hughes (1949). =Cariblatta= ssp. _U.S.A._--One live and three dead specimens recovered from three aircraft at Miami (Denning et al., 1947). Southern U.S. (Hughes, 1949). =Epilampra= sp. _U.S.A._--One dead specimen, Miami (Denning et al., 1947). Southern U.S. (Hughes, 1949).