Broomrape parasitising thyme plant
Thyme (Thymus glabrescens) on anthill
Mites parasitising aphids
Purple toothwort (Lathraea clandestina) in flower
Mole flea
Fungus parasitising a fly
Wasp parasitising ladybird
Black leaf beetle
Cochineal insects on prickly pear cactus
Tapeworm cysticercus, SEM
Tapeworm metacestode, SEM
Parasitized insect eggs
Tube trapdoor spider with mites
Male cayenne tick
Male Gulf Coast tick
Lone star tick
Female lone star tick
Toothwort
Weevil larva in white campion fruit
Chiastocheta fly pollinating globeflower
Parasitic fly feeding on flowers
SEM of oocysts of Cryptosporidium parvum
Amphipod crustacean
Bed bug feeding on a human
Cordyceps fungus infecting moth
Mite egg, SEM
Hookworm, SEM
Capillaria parasite egg, SEM
Bird flea, SEM
Sand flea, SEM
Sand flea eggs, SEM
Cat flea, SEM
Hedgehog flea claws, SEM
Relapsing fever tick
Relapsing fever ticks
Follicle mite SEM
Bee mite, SEM
Tick, SEM
Tick
Female blacklegged tick
Varroa mite
Varroa mites
Parasitised honeybee
Tick on a dog's skin
Monitor lizard tick
Cat flea
Mosquito feeding on a human
Kerona protozoan, light micrograph
Bedbug, SEM
Head louse, SEM
Bedbugs
Parasitised garden tiger caterpillar
Honey bee with Varroa mites
Beef tapeworm, SEM
Pair of bont-legged ticks
Marked tick feeding on blood in a laboratory
Tick feeding in a laboratory
Tick feeding on blood in a laboratory
Robin's pincushion galls
Tapeworm in a specimen jar
Female flea, LM
Rose chafer on meadow-rue flowers
Gall on oak leaf
Underside of a lone star tick
Cordyceps fungus on a large fly
Cordyceps fungus on a moth
Silk button spangle galls on a leaf
Common spangle galls on a leaf
Female red-banded sand wasp with caterpillar prey
Gall midge galls on beech leaf
Gall midge gall
Caterpillar in white campion fruit
Alder bead galls
Fish louse
Chicken body louse eggs, SEM
Lesser purple emperor butterfly
Male sand lizard
Broomrape (Orobanche caryophyllacea)
Parasitic Cylindromyia fly
Parasitic tachinid fly
Parasitic red mites on a frog hopper
Frog hopper
Baboons grooming
Lesser hornet hoverfly
Eupelmid wasp
Grey-haired mining-bee with the tringulins of an oil beetle
Torymus sp. wasp
Tapeworm cysticercus, light micrograph
Fire cuckoo wasp
Bracket fungus
Birch polypore fungus
Bean broomrape on broad bean crop
Follicle mites SEM
Follicle mite tail SEM
Follicle mite tails SEM
Follicle mite tails, SEM
Dog mange mite, SEM
Roundworm
Male flea, LM
Human fleas, LM
Trooping cordyceps fungus
Ant infected by parasitic fungus
Beneficial nematodes, fluorescent micrograph
Tick feeding on a human
Scale insect, SEM
Scale insects, SEM
Cottony cushion scale bugs
Tapeworm, artwork
Tapeworm head, SEM
Parasites in large intestine, SEM
Human head louse Pediculus, LM
Beaver beetle leg, SEM
Camel sucking louse, light micrograph
Schistosome parasite, light micrograph
Giardia lamblia protozoa, SEM
Giardia lamblia protozoan, SEM
Schistosome larva
Schistosome parasite
Schistosome egg
Schistosomes
Schistosome eggs
Wuchereria bancrofti parasite
Parasitic roundworm
Head louse nits, SEM
Feather louse nymph, SEM
Badger body louse, SEM
Bedbug penis, SEM
Bed bug, SEM
Bat fly head, SEM
Bat fly, SEM
Bat fly foot, SEM
Dog Flea Head (Ctenocephalides canis).
Unfertilised Ascaris lumbricoides egg, light micrograph
Leaf miner moth damage
Bud gall
Homologaster flatworm, SEM
Onchocotyle flatwom, SEM
Octobothrium flatworm, SEM
Nematode egg, SEM
Scale insects
Varroa jacobsoni mites
Beelouse
Biting midge
Chalcid wasp
Nematode worm, illustration
Light micrograph of beef tapeworm cysts in tongue
Giardiasis parasite life cycle
Seabird tick marked for population monitoring
Ichneumon wasp