Ranger Robb:
Aphodiinae. 60210. Check Station, North Rim Grand Canyon, AZ. 19 July 1952. D.C. Lowrie
Ranger Robb:
Ataenius texanus 55076. Supai Village, Grand Canyon, AZ. 4 August 1938. P.E. Geier
Ranger Robb:
Ataenius texanus 55076. Supai Village, Grand Canyon, AZ. 4 August 1938. P.E. Geier_1
Ranger Robb:
Bumble Flower Beetle, Euphoria inda. 25503. Grand Canyon National Park, AZ. 2 April 1931. C.C. Searl
Ranger Robb:
Bumble Flower Beetle, Euphoria inda. 55074. Pupa case. Grand Canyon Village, AZ. 21 September 1956. Clayton May
Ranger Robb:
Calamosternus granarius. Det. Robb Hannawacker 2022. Grand Canyon National Park, AZ. 14 May 1931. C.C. Searl
Ranger Robb:
Calamosternus granarius. Det. Robb Hannawacker 2022. Grand Canyon National Park, AZ. 14 May 1931. C.C. Searl_1
Ranger Robb:
LeConte's Chrysina, Chrysina lecontei. 60058. Marble Flats, North Rim Grand Canyon, AZ. 11 August 1935. W.T. McKean
Ranger Robb:
LeConte's Chrysina, Chrysina lecontei. 60058. Marble Flats, North Rim Grand Canyon, AZ. 11 August 1935. W.T. McKean_1
Ranger Robb:
Cotalpa sp. 69007. Supai Village, AZ. 10 May 1945. E.W. Claver
Ranger Robb:
Cotalpa sp. 69007. Supai Village, AZ. 10 May 1945. E.W. Claver_1
Ranger Robb:
Diplotaxis brevicollis 25611. Det. Edward Albert Chapin. North Rim, Grand Canyon National Park, AZ. 3 July 1940Louis Schellbach III
Ranger Robb:
Diplotaxis brevicollis 25611. Det. Edward Albert Chapin. North Rim, Grand Canyon National Park, AZ. 3 July 1940Louis Schellbach III_1
Ranger Robb:
Diplotaxis sp. 60085. Marble Flats, North Rim Grand Canyon, AZ. 11 August 1935. W.T. McKean (2)
Ranger Robb:
Diplotaxis sp. 60085. Marble Flats, North Rim Grand Canyon, AZ. 11 August 1935. W.T. McKean
Ranger Robb:
Diplotaxis sp. 60098. Indian Garden, Grand Canyon, AZ. 23 July 1931. L. Davis (2)
Ranger Robb:
Diplotaxis sp. 60098. Indian Garden, Grand Canyon, AZ. 23 July 1931. L. Davis
Ranger Robb:
Diplotaxis sp. 60100. Det. E.A. Chopin. South Rim Grand Canyon, AZ. 30 July 1952. D.C. Lowrie (2)
Ranger Robb:
Diplotaxis sp. 60100. Det. E.A. Chopin. South Rim Grand Canyon, AZ. 30 July 1952. D.C. Lowrie
Ranger Robb:
Diplotaxis sp. 60176. Det. E.A. Chapin. Roaring Springs, Grand Canyon, AZ. July 1930. C.C. Searl (2)
Ranger Robb:
Diplotaxis sp. 60176. Det. E.A. Chapin. Roaring Springs, Grand Canyon, AZ. July 1930. C.C. Searl
Ranger Robb:
Grant's Hercules Beetle, Dynastes grantii, female. 25646. Post Office, Grand Canyon Village, AZ. August 1961.
Ranger Robb:
Grant's Hercules Beetle, Dynastes grantii, female. 25646. Post Office, Grand Canyon Village, AZ. August 1961. _1
Ranger Robb:
Grant's Hercules Beetle, Dynastes grantii, male. 25552. Fairgrounds, Prescott, AZ. 13 July 1955. Dwight Warren
Ranger Robb:
Grant's Hercules Beetle, Dynastes grantii, male. 25552. Fairgrounds, Prescott, AZ. 13 July 1955. Dwight Warren_1
Ranger Robb:
Green June Beetle, Cotinis sp. 69010. Junction Creek and Verde River, AZ. 15 September 1952. E. Christensen
Ranger Robb:
Green June Beetle, Cotinis sp. 69010. Junction Creek and Verde River, AZ. 15 September 1952. E. Christensen_1
Ranger Robb:
Miniature Dung Chafer, Aphodius sp. 55086. Det. E.A. Chapin. Grand Canyon National Park, AZ. 14 May 1931. C.C. Searl
Ranger Robb:
Miniature Dung Chafer, Aphodius sp. 55086. Det. E.A. Chapin. Grand Canyon National Park, AZ. 14 May 1931. C.C. Searl_1
Ranger Robb:
Miniature Dung Chafer, Aphodius sp. 55089. Det. E.A. Chapin. Yavapai Point, Grand Canyon National Park, AZ. 12 October 1945. Louis Schellbach III
