Alan Cressler: Akanthomyces aculeatus, on an unidentified sphinx moth species, Chassahowitzka Swamp, Chassahowitzka Wildlife Management Area, Hernando County, Florida 1
Alan Cressler: Akanthomyces aculeatus, on unidentifed sphinx moth, Sharp Mountain Creek, Cherokee County, Georgia 2
Alan Cressler: Alan Cressler's, Tick Bite, on March 27, 2011
Alan Cressler: Amblyomma americanum (adult female), feeding on Alan Cressler's leg, Elbert County, Georgia 1
Alan Cressler: Cassytha filiformis, Navy Wells Nature Preserve, Miami-Dade County, Florida 4
Alan Cressler: Cocytius antaeus, with Braconid Wasp Pupae Cases, on Annona Glabra, Fakahatchee Strand Preserve State Park, Collier County, Florida 2
Alan Cressler: Cuscuta harperi, on Liatris microcephala, Sandstone Flat Rock, Little River Canyon National Preserve, DeKalb County, Alabama 3
Alan Cressler: Cuscuta harperi, on Liatris species, Sandstone Flatrock, Little River Canyon National Preserve, DeKalb County, Alabama 1
Alan Cressler: Cuscuta pentagona var. pentagona (Cuscuta campestris), Pine Log, Bartow County, Georgia 1
Alan Cressler: Cuscuta pentagona var. pentagona (Cuscuta campestris), Pine Log, Bartow County, Georgia 2
Alan Cressler: Dermacentor variabilis (male), Alan Cressler's leg, Burks Mountain, Columbia County, Georgia 3
Alan Cressler: Dermatobia hominis (human bot fly), Coming Out of Alan Cressler's leg 1
Alan Cressler: gordius species, mcfarland hollow, jackson county, alabama 2
Alan Cressler: Haemadipsa cavatuses (possible identification), Deer Water Cave, Gunung Mulu National Park, Sarawak, Malaysia 1
Alan Cressler: Haemadipsa cavatuses (Possible Identification), Deer Water Cave, Gunung Mulu National Park, Sarawak, Malaysia 1
Alan Cressler: Haemadipsa picta, and Haemadipsa zeylanica, on Alan Cressler's Leg, Gunung Mulu National Park, Sarawak, Malaysia 1
Alan Cressler: Haemadipsa picta, and Haemadipsa zeylanica, on Alan Cressler's Leg, Gunung Mulu National Park, Sarawak, Malaysia 2
Alan Cressler: Ixodes scapularis, Alan Cressler's Upper Side, Anne Arundel County, Maryland 2
Alan Cressler: korthalsella latissima, waiakamaii gulch, koaia tree sanctuary, kohala mountains, south kohala district, hawaii county, hawaii 3
Alan Cressler: korthalsella latissima, waiakamaii gulch, koaia tree sanctuary, kohala mountains, south kohala district, hawaii county, hawaii 4
Alan Cressler: korthalsella latissima, waiakamaii gulch, koaia tree sanctuary, kohala mountains, south kohala district, hawaii county, hawaii 5
Alan Cressler: Leech, Manuel Beers Foot, Chauga River, Chauga River Gorge, Sumter National Forest, Oconee County, South Carolina 2
Alan Cressler: Leech Bite, Day Two, on Alan Cressler's, Upper Thigh, Camp 5, Gunung Mulu National Park, Sarawak, Malaysia 2
Alan Cressler: Leech Bite, On Alan Cressler's, Upper Thigh, Camp 5, Gunung Mulu National Park, Sarawak, Malaysia 1
Alan Cressler: Macrobdella mimicus, on Alan Cressler's leg, Lake Wattacoo, Ashmore Heritage Preserve, Greenville County, South Carolina 4
Alan Cressler: Macrobdella mimicus, on Alan Cressler's leg, Lake Wattacoo, Ashmore Heritage Preserve, Greenville County, South Carolina 5
Alan Cressler: Macrobdella mimicus, on Alan Cressler's leg, Lake Wattacoo, Ashmore Heritage Preserve, Greenville County, South Carolina 6
Alan Cressler: manduca sexta, caterpillar, with eggs of cotesia congregata, decatur, dekalb county, georgia 2
Alan Cressler: Nematomorpha, emerging from a millipede host, Hillabahatchee Creek, Heard County, Georgia 1
Alan Cressler: Phoradendron juniperinum, on Juniperus osteosperma, Grand Gulch Wilderness Study Area, BLM Lands, San Juan County, Utah 1