William M. Ciesla's Images
Title: OwnerOrganization: Forest Health Management International
Unit: Fort Collins, CO.
Country: United States
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Bill Ciesla is a forest health specialist and owner of Forest Health Management International, a consulting company based in Fort Collins, CO. Bill received his undergraduate and graduate degrees in forestry and forest entomology from the State University of New York, College of Environmental Science and Forestry at Syracuse University, Syracuse, NY. He has held assignments with USDA Forest Service as a forest entomologist and forest health program manager in Asheville, NC, Pineville, LA, Missoula, MT, Davis, CA, Fort Collins, CO and Portland, OR. From 1990 to 1995, he served as Forest Protection Officer for the Food and Agriculture Organization in Rome, Italy. His areas of interest include biology and management of forest insects and diseases and the use of remote sensing for forest damage assessment Bill is an avid photographer, specializing in close ups of insects and wildflowers and of forest damage. |
| 109 Images of 41 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5466823 | mountain pine beetle | Dendroctonus ponderosae | |
| 5466868 | western spruce budworm | Choristoneura freemani | |
| 5466869 | western spruce budworm | Choristoneura freemani | |
| 5466766 | american ermine moth | Yponomeuta multipunctella | |
| 5466767 | american ermine moth | Yponomeuta multipunctella | |
| 5466721 | eastern tent caterpillar | Malacosoma americanum | |
| 5466719 | eastern tent caterpillar | Malacosoma americanum | |
| 5466720 | eastern tent caterpillar | Malacosoma americanum | |
| 5466699 | loopers | Chrysodeixis spp. | |
| 5466700 | loopers | Chrysodeixis spp. | |
| 5466726 | speckled green fruitworm | Orthosia hibisci | |
| 1546169 | checkered beetle | Thanasimus dubius | Larva of the predator clerid (probably Thanasimus dubius) working through the galleries bored by the southern pine beetle, Dendroctonus frontalis, searching for prey. |
| 1274016 | Tetrio sphinx | Pseudosphinx tetrio | This insect is a common defoliator of frangipani and also reportedly occurs in the extreme southern United States (southern LA, TX, AZ and FL.). Plymouth, Tobago (Trinidad and Tobago). 2nd place in the 2004 Southern Forest Insect Work Conference Photo Salon in the category of Forest Insects. |
| 0758018 | tomato hornworm | Manduca quinquemaculata | Mature larva feeding on foliage |
| 1254022 | white pine weevil | Pissodes strobi | |
| 5382377 | large aspen tortrix | Choristoneura conflictana | Mature larva |
| 5382381 | large aspen tortrix | Choristoneura conflictana | Mature larva |
| 5382382 | large aspen tortrix | Choristoneura conflictana | |
| 1254029 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva |
| 0017002 | spiny caterpillar | Ormiscodes cinnamomea | mature larva (Note clusters of ectoparasitoides on body) |
| 0017004 | nun moth | Lymantria monacha | newly hatched larvae on pine bark |
| 0017012 | pine processionary moth | Thaumetopoea pityocampa | third instar larval colony |
| 0017018 | Masson pine caterpillar | Dendrolimus punctatus | mature larva |
| 0758002 | pandora moth | Coloradia pandora | Mature larvae feeding on ponderosa pine foliage |
| 0758016 | tiger moth | Lophocampa ingens | Close up of larval colony |
| 0758017 | black swallowtail | Papilio polyxenes | Mature larva feeding on parsnip foliage |
| 0758023 | gypsy moth | Lymantria dispar | Mature larva on oak |
| 0758024 | gypsy moth | Lymantria dispar | Mature larva killed by a nuclearpolyhedrosis virus |
| 0758025 | gypsy moth | Lymantria dispar | Cluster of larvae killed by a nucleopolyhedrosis virus |
| 1254014 | sawyer beetles | Monochamus spp. | Mature larva |
| 1254017 | flatheaded or metallic wood borer | Mature larva | |
| 1254025 | western spruce budworm | Choristoneura freemani | Young larva in shoot |
| 5382506 | western tent caterpillar | Malacosoma californicum | Larval colony on mountain mahogany |
| 5382507 | western tent caterpillar | Malacosoma californicum | Larval colony on mountain mahogany |
| 5176054 | spiny caterpillar | Ormiscodes cinnamomea | Larvae migrating down stem to pupation site in soil |
| 5176055 | spiny caterpillar | Ormiscodes cinnamomea | Mature larvae migrating to pupation site |
| 0758227 | forest tent caterpillar | Malacosoma disstria | Mature larvae on stem of a water tupelo |
| 1248002 | Tetrio sphinx | Pseudosphinx tetrio | Killed by virus |
| 5346083 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva |
| 5346089 | western tent caterpillar | Malacosoma californicum | Larvae and tent on quaking aspen, San Isabel National Forest CO, July 2007 |
| 5346093 | western tent caterpillar | Malacosoma californicum | Mature larvae on aspen twig, San Isabel National Forest, CO, July 2007 |
| 5346094 | western tent caterpillar | Malacosoma californicum | Mature larva on old tent, San Isabel National Forest, CO, July 2007 |
| 5346095 | western tent caterpillar | Malacosoma californicum | Larvae on aspen twig, San Isabel NF, CO, July 2007 |
| 5346096 | western tent caterpillar | Malacosoma californicum | Larvae on aspen twig, San Isabel National Forest, CO, July 2007 |
| 5346097 | western tent caterpillar | Malacosoma californicum | Mature larva on aspen bark, San Isabel NF, CO, July 2007 |
| 5346099 | polyphemus moth | Antheraea polyphemus | Mature larva, Douglas Co, CO, August 2007 |
| 5346100 | polyphemus moth | Antheraea polyphemus | Mature larva, Douglas Co, CO, August 2007 |
| 5347001 | polyphemus moth | Antheraea polyphemus | Mature larva, Douglas Co, CO, August 2007 |
| 5347013 | monarch butterfly | Danaus plexippus | Mature larva on milkweed, Shenadoah NP, VA, October 2007 |
| 5347014 | monarch butterfly | Danaus plexippus | Mature larva on milkweed, Shenandoah NP, VA, October 2007 |
| 5175073 | sawfly | Cerospastus volupis | Larvae on foliage, X Region, Chile |
| 5175075 | sawfly | Cerospastus volupis | Larval colony on foliage, X Region, Chile |
| 5175076 | sawfly | Cerospastus volupis | Larval colony and defoliation, X Region, Chile |
| 2167080 | western tent caterpillar | Malacosoma californicum | Larvae and tent, Larimer Co, CO. |
| 5135084 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135085 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135086 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135087 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135088 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5136009 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136010 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136011 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136012 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 2167078 | western tent caterpillar | Malacosoma californicum | Larval colony on ninebark, Larimer CO, NC. |
| 2167079 | western tent caterpillar | Malacosoma californicum | Larval colony on mountain mahogany |
| 0758245 | pandora moth | Coloradia pandora | Mature larva feeding on ponderosa pine. |
| 2134046 | monarch butterfly | Danaus plexippus | Isla de Mujeres, Quintana Roo State, Mexico |
| 2134047 | monarch butterfly | Danaus plexippus | |
| 2122040 | Milbert's tortoiseshell | Aglais milberti | Larvae on nettle, Cherokee Park, CO |
| 1248028 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aspen Park, CO |
| 1248029 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aspen Park, CO |
| 1248003 | monarch butterfly | Danaus plexippus | Mature larva, Village of Plymouth, Tobago, Trinidad and Tobago |
| 1248006 | gypsy moth | Lymantria dispar | Virus infected |
| 1274013 | bagworm | Thyridopteryx ephemeraeformis | Avery Island, LA |
| 1274014 | gypsy moth | Lymantria dispar | Mature larva. Near Bucharest, Romania |
| 1248001 | Tetrio sphinx | Pseudosphinx tetrio | Mature larva, village of Plymouth, Tobago, Trinidad and Tobago |
| 1309002 | milkweed tussock moth | Euchaetes egle | Madison Co, Iowa. |
| 1309005 | swallowtail butterflies | Papilio spp. | Mature larva, Fort Collins, CO |
| 1254031 | tiger moth | Lophocampa ingens | Colony of mature larvae, Roosevelt NF, CO. |
| 1254032 | tiger moth | Lophocampa ingens | Larvae and tent in tip, Roosevelt NF, CO. |
| 1254033 | western tent caterpillar | Malacosoma californicum | Mature larva on tent, Roosevelt NF, CO. |
| 1254036 | conifer sawflies | Neodiprion spp. | Larval colony, near Jasper, AL. |
| 1254037 | conifer sawflies | Neodiprion spp. | Single larva on ponderosa pine, west of Fort Collins, CO |
| 1254038 | brownheaded ash sawfly | Tomostethus multicinctus | Larvae on bark migrating to pupation sites. |
| 1254042 | elm leaf beetle | Xanthogaleruca luteola | Larvae and defoliation, Fort Collins, CO. |
| 1254047 | lady beetle | Fort Collins, CO. | |
| 1307020 | flatheaded or metallic wood borer | Larvae in pith of Sonneratia in mangrove forest south of Mombasa, Kenya | |
| 1232003 | pine processionary moth | Thaumetopoea pityocampa | Colony of mature larvae |
| 1232004 | pine processionary moth | Thaumetopoea pityocampa | Colony of mature larvae preparing to migrate to a pupation site. |
| 1232005 | pine processionary moth | Thaumetopoea pityocampa | Colony of sixth instar larvae in a "procession" toward a pupation site. |
| 1232015 | pine processionary moth | Thaumetopoea pityocampa | Colony of sixth instar larvae. Note: Occurrence of this insect on Cupressus sempervirens is extremely unusual. |
| 1428136 | spiny caterpillar | Ormiscodes cinnamomea | Cuncuna espinuda (Spanish common name), colony of larvae feeding on foliage, central Chile |
| 1428137 | European spruce bark beetle | Ips typographus | Larvae and galleries in cambium of Picea abies, eastern Austria. |
| 1428146 | spiny caterpillar | Ormiscodes cinnamomea | Mature larva |
| 3943088 | butterflies, moths or skippers | Lepidoptera (Order) N/A | on bark. |
| 3943101 | seagrape sawfly | Sericoceros mexicanus | Colony of larvae, West Bay |
| 3943103 | seagrape sawfly | Sericoceros mexicanus | Single mature larva on seagrape leaf, West Bay |
| 3943104 | seagrape sawfly | Sericoceros mexicanus | First instar larvae on egg cluster |
| 3943105 | seagrape sawfly | Sericoceros mexicanus | Colony of larvae on seagrape leaf |
| 3943106 | seagrape sawfly | Sericoceros mexicanus | Colony of larvae on seagrape leaf. |
| 3943018 | Pine-tree lappet | Dendrolimus pini | on branch |
| 3943019 | Pine-tree lappet | Dendrolimus pini | Mature larva on branch. |
| 3943044 | butterflies, moths or skippers | Lepidoptera (Order) N/A | Unidentified lepidopterous larva, defoliator of Fragipani, Port of Spain. |
| 1428110 | southwestern tent caterpillar | Malacosoma incurvum | tent containing late instar larvae, southern Utah |
| 1428085 | mountain pine beetle | Dendroctonus ponderosae | Larvae and galleries. |
| 2912020 | flatheaded or metallic wood borer | found in Mangrove forest on the coast, south of Mombasa | |
| 3943005 | butterflies, moths or skippers | Lepidoptera (Order) N/A | |
| 1428109 | southwestern tent caterpillar | Malacosoma incurvum | tent containing late instar larvae |
| 3943097 | pine processionary moth | Thaumetopoea pityocampa | Procession of second instar larvae moving to a new feeding site, Turkish Cyprus |
