Ranger Robb:
Feather Louse, Degeeriella sp. 51886. On Dusky Grouse. North Rim Grand Canyon, AZ. 24 July 1938. Louis Schellbach III
Ranger Robb:
Reticulitermes claripennis. Det. T.E. Snyder. 25494. Grand Canyon Village, AZ. 9 July 1943. Louis Schellbach III
Ranger Robb:
Reticulitermes claripennis. Det. T.E. Snyder. 25494. Grand Canyon Village, AZ. 9 July 1943. Louis Schellbach III_1
Ranger Robb:
Oriental Cockroach, Blatta orientalis, female. Det. R.B. Willey. 51820. Grand Canyon Village, AZ. 22 June 1949. H.C. Bryant
Ranger Robb:
Oriental Cockroach, Blatta orientalis, female. Det. R.B. Willey. 51820. Grand Canyon Village, AZ. 22 June 1949. H.C. Bryant_1
Ranger Robb:
Oriental Cockroach, Blatta orientalis, egg sack. Det. R. Hannawacker. 51815. Grand Canyon Village, AZ. 1 July 1950. Louis Schellbach III
Ranger Robb:
Oriental Cockroach, Blatta orientalis, male. 51822. Grand Canyon Village, AZ. 1 July 1950. Louis Schellbach III
Ranger Robb:
Oriental Cockroach, Blatta orientalis, male. 51822. Grand Canyon Village, AZ. 1 July 1950. Louis Schellbach III_1
Ranger Robb:
American Cockroach, Periplaneta americana. Det. H.K. Townes. 60051. Grand Canyon, AZ. 26 September 1941. Louis Schellbach III
Ranger Robb:
American Cockroach, Periplaneta americana. Det. H.K. Townes. 60051. Grand Canyon, AZ. 26 September 1941. Louis Schellbach III_1
Ranger Robb:
Stagmomantis Californica. Det. A.B. Gurney. 51808. Roaring Springs, Grand Canyon National Park, AZ. 30 August 1938. Louis Schellbach III
Ranger Robb:
Stagmomantis Californica. Det. A.B. Gurney. 51808. Roaring Springs, Grand Canyon National Park, AZ. 30 August 1938. Louis Schellbach III_1
Ranger Robb:
Stagmomantis sp., male. 51809.Indian Gardens, Grand Canyon National Park, AZ. 2 July 1931.L. Davis
Ranger Robb:
Stagmomantis sp., male. 51809.Indian Gardens, Grand Canyon National Park, AZ. 2 July 1931.L. Davis_1
Ranger Robb:
Stagmomantis sp., male. 51809. Indian Gardens, Grand Canyon National Park, AZ. 2 July 1931. Lloyd Davis
Ranger Robb:
Stagmomantis sp., male. 51809.Indian Gardens, Grand Canyon National Park, AZ. 2 July 1931.Lloyd Davis_1
Ranger Robb:
Stagmomantis sp., male. 60050.Cottonwood, AZ. 6 October 1952. Louis Schellbach III
Ranger Robb:
Stagmomantis sp., male. 60050.Cottonwood, AZ. 6 October 1952. Louis Schellbach III_1
Ranger Robb:
Obscure Ground Mantis, Litaneutria minor. 51810. South Rim Grand Canyon, CCC Camp. 9 August 1935. W. McKean
Ranger Robb:
Obscure Ground Mantis, Litaneutria minor. Det. R. Hannawacker. 51813.Bright Angel Trail, Grand Canyon National Park, AZ. 31 July 1952. D.C. Lowrie
Ranger Robb:
Obscure Ground Mantis, Litaneutria minor. Det. R. Hannawacker. 51813.Bright Angel Trail, Grand Canyon National Park, AZ. 31 July 1952. D.C. Lowrie_1
Ranger Robb:
51850. Dripping Springs, Grand Canyon, AZ. 1 August 1952. D.C. Lowrie
Ranger Robb:
Acrididae 51734. South Rim Grand Canyon, AZ. 24 May 1952. E.B. Hayden Jr.
Ranger Robb:
Acrididae 51734. South Rim Grand Canyon, AZ. 24 May 1952. E.B. Hayden Jr._1
Ranger Robb:
Acrididae 51846. Bright Angel Trail, Grand Canyon, AZ. 31 July 1952. D.C. Lowrie
Ranger Robb:
Acrididae 51856. Dripping Springs, Grand Canyon, AZ. 1 August 1952. D.C. Lowrie
Ranger Robb:
Acrididae 51858. Bright Angel Trail, above Phantom Ranch, Grand Canyon, AZ. 14 August 1952. D. Lowrie
Ranger Robb:
Acrididae 51858. Bright Angel Trail, above Phantom Ranch, Grand Canyon, AZ. 14 August 1952. D. Lowrie_1
Ranger Robb:
Acrididae 51859. Dripping Springs, Grand Canyon, AZ. 1 August 1952. D.C. Lowrie
Ranger Robb:
Acrididae 51859. Dripping Springs, Grand Canyon, AZ. 1 August 1952. D.C. Lowrie_1
