Ranger Robb:
Cactus Bug, Chelinidae vittiger. 51978. Det. R. Hannawacker. Dripping Spring, Grand Canyon National Park, AZ. 1 August 1952. D.C. Lowrie
Ranger Robb:
Conchuela Bug, Chlorochroa ligata. 51932. Bright Angel Trail, Grand Canyon National Park, AZ. 31 July 1952. D.C. Lowrie (2)
Ranger Robb:
Conchuela Bug, Chlorochroa ligata. 51932. Bright Angel Trail, Grand Canyon National Park, AZ. 31 July 1952. D.C. Lowrie
Ranger Robb:
Conchuela Bug, Chlorochroa ligata. 51933. det. R.I. Sailer. South Rim, Grand Canyon National Park, AZ. 22 July 1941. Arnold Stockton
Ranger Robb:
Alydus sp. GRCA 81965. Walhalla Plateau, Grand Canyon National Park, AZ. 16 July 2000. Karen C. Short
Ranger Robb:
Alydus sp. GRCA 81965. Walhalla Plateau, Grand Canyon National Park, AZ. 16 July 2000. Karen C. Short_1
Ranger Robb:
Corimelaena sp. 81968. Det. L. Roland. Walhalla Plateau, Grand Canyon National Park, AZ. 20 June 1999. Karen C. Short
Ranger Robb:
Corimelaena sp. 81968. Det. L. Roland. Walhalla Plateau, Grand Canyon National Park, AZ. 20 June 1999. Karen C. Short_1
Ranger Robb:
Eremocoris semicinctus. GRCA 81962. Walhalla Plateau, Grand Canyon National Park, AZ. 18 July 1999. Karen C. Short
Ranger Robb:
Eurygaster sp. 50485. Det. L. Roland. North Rim, Grand Canyon National Park, AZ. 15 August 1978. K. Butterfield
Ranger Robb:
Eurygaster sp. 50485. Det. L. Roland. North Rim, Grand Canyon National Park, AZ. 15 August 1978. K. Butterfield_1
Ranger Robb:
Euschistus inflatus 51937. Grand Canyon National Park, AZ. 20 June 1930. RL Usinger (2)
Ranger Robb:
Euschistus inflatus 51937. Grand Canyon National Park, AZ. 20 June 1930. RL Usinger
Ranger Robb:
Aradus sp. GRCA 81958. Walhalla Plateau, Grand Canyon National Park, AZ. 16 June 2001. Karen C. Short
Ranger Robb:
Aradus sp. GRCA 81958. Walhalla Plateau, Grand Canyon National Park, AZ. 16 June 2001. Karen C. Short_1
Ranger Robb:
Geocoris pallens. GRCA 81961. Walhalla Plateau, Grand Canyon National Park, AZ. 20 June 1999. Karen C. Short
Ranger Robb:
Geocoris sp. 81963. Walhalla Plateau, Grand Canyon National Park, AZ. 16 June 2001. Karen C. Short
Ranger Robb:
Giant Agave Bug, Acanthocephala thomasi. 51949. Det. R.I. Sailer. Kaibab Trail, North Rim, Grand Canyon National Park, AZ. 24 August 1942. H.C. Bryant
Ranger Robb:
Green Stink Bug, Chinavia hilaris. 51931. Roaring Springs, Grand Canyon National Park, AZ. 15 July 1930. C.C. Searl
Ranger Robb:
Green Stink Bug, Chinavia hilaris. 51931. Roaring Springs, Grand Canyon National Park, AZ. 15 July 1930. C.C. Searl_1
Ranger Robb:
Harlequin Bug, Murganita histrionica. 60059. Det. R. Hannawacker. Cottonwood, AZ. 6 October 1952Louis Schellbach III
Ranger Robb:
Tribe Niesthreini. GRCA 81964. Walhalla Plateau, Grand Canyon National Park, AZ. 16 July 2000. Karen C. Short
Ranger Robb:
Juniper Stink Bug, Banasa euchlora. 51929. Det. HG Barber. North Rim, Grand Canyon National Park, AZ. 22 August 1938. Louis Schellbach III
Ranger Robb:
Holcostethus abbreviatus. GRCA 51939. Bright Angel Trail, Grand Canyon National Park, AZ. 31 July 1952. D.C. Lowrie (2)
Ranger Robb:
Holcostethus abbreviatus. GRCA 51939. Bright Angel Trail, Grand Canyon National Park, AZ. 31 July 1952. D.C. Lowrie
Ranger Robb:
Chlorochroa sayi. GRCA 51940. Neil Spring, Grand Canyon National Park, AZ. 19 July 1952. D.C. Lowrie (2)
Ranger Robb:
Chlorochroa sayi. GRCA 51940. Neil Spring, Grand Canyon National Park, AZ. 19 July 1952. D.C. Lowrie (3)
Ranger Robb:
Thyanta custator ssp. accerra. GRCA 51941. Neil Spring, Grand Canyon National Park, AZ. 19 July 1952. D.C. Lowrie (2)
Ranger Robb:
Thyanta custator ssp. accerra. GRCA 51941. Neil Spring, Grand Canyon National Park, AZ. 19 July 1952. D.C. Lowrie (3)
Ranger Robb:
Thyanta custator ssp. accerra. GRCA 51941. Neil Spring, Grand Canyon National Park, AZ. 19 July 1952. D.C. Lowrie (4)
