Gall on oak leaf
Bud gall
Oak-apples caused by gall wasps
Knopper gall with adult wasp and pupal
Common spangle gall
Gall midge gall
Gall midge galls on beech leaf
Common spangle galls
Common oak marble galls
Rose gall wasp galls
Amazonian Leaf galls
Gall on the leaf of a beech tree
Witches' broom gall
Silk button galls
Robin's pincushion galls
Common spangle galls on an oak leaf
Sycamore mite galls
Oak apples
Spangle galls on an oak leaf, SEM
Redcurrant bush galled by blister aphids
Willow redgall sawfly galls
Oak apple gall
Tomato plant with crown gall disease
Leaf miner moth damage
Galls on a leaf
Mole flea
Tube trapdoor spider with mites
Parasitized insect eggs
Male Gulf Coast tick
Rose bedeguar gall
Cordyceps fungus infecting moth
Female blacklegged tick
Bird flea, SEM
Sand flea, SEM
Sand flea eggs, SEM
Cat flea, SEM
Hedgehog flea claws, SEM
Varroa mite
Varroa mites
Parasitised honeybee
Mites parasitising aphids
Beaver beetle leg, SEM
Cat flea
Mosquito feeding on a human
Bedbug, SEM
Head louse, SEM
Schistosome larva
Head louse nits, SEM
Feather louse nymph, SEM
Badger body louse, SEM
Bedbugs
Bedbug penis, SEM
Bed bug, SEM
Bat fly head, SEM
Bat fly, SEM
Bat fly foot, SEM
Parasitised garden tiger caterpillar
Dog Flea Head (Ctenocephalides canis).
Silk button spangle galls on a leaf
Common spangle galls on a leaf
SEM of oocysts of Cryptosporidium parvum
Parasitic fungus
Chicken body louse eggs, SEM
Bed bug feeding on a human
Male cayenne tick
Mushroom surface, SEM
Rust fungus
Beaver beetle head, SEM
Weevil larva in white campion fruit
Alder bead galls
Slime mould on rose
Fertilized Ascaris lumbricoides egg, light micrograph
Tapeworm in a specimen jar
Dog biting lice, SEM
Aedes aegypti mosquito feeding
Schistosoma mansoni egg showing lateral spine. Schistosomiasis (also known as bilharzia, snail fever, and Katayama fever) is a disease caused by parasitic worms of the Schistosoma type
Eriophyid gall mite (Aceria hibisci), SEM
Tapeworm, artwork
Tapeworm cysticercus, SEM
Tapeworm metacestode, SEM
Mite egg, SEM
Hookworm, SEM
Capillaria parasite egg, SEM
Tapeworm head, SEM
Relapsing fever tick
Relapsing fever ticks
Follicle mite SEM
Bee mite, SEM
Tick, SEM
Tick
Tick on a dog's skin
Human head louse Pediculus, LM
Lone star tick
Female lone star tick
Monitor lizard tick
Camel sucking louse, light micrograph
Kerona protozoan, light micrograph
Schistosome parasite, light micrograph
Giardia lamblia protozoa, SEM
Giardia lamblia protozoan, SEM
Schistosome parasite
Schistosome egg
Schistosomes
Schistosome eggs
Wuchereria bancrofti parasite
Parasitic roundworm
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
Unfertilised Ascaris lumbricoides egg, light micrograph
Underside of a lone star tick
Rust fungus spores SEM
Giardiasis parasite life cycle
Fasciola hepatica eggs
Jelly fungus
Bracket fungus
Birch polypore fungus
Fish louse
Amphipod crustacean
Galba truncatula egg with embryo
Galba truncatula egg mass
Flea circus
Tick leg
Caterpillar in white campion fruit
Cherry gall on pedunculate oak (Quercus robur) leaf
Chiastocheta fly pollinating globeflower
Peacock butterfly caterpillars
Tapeworm cysticercus, light micrograph
Black leaf beetle
Cochineal insects on prickly pear cactus
Larvae & oak acorns
Sheep tick mouthpart, LM
Gall-forming psyllid nymph, SEM
Roundworm
Trooping cordyceps fungus
Ant infected by parasitic fungus
Sheep tick, SEM
Mating body lice, SEM
Caterpillar
Nitrogen-fixing bacteria
Parasitic worms
Head louse in human hair
Scale insect, SEM
Nematode worm, illustration
Light micrograph of beef tapeworm cysts in tongue
Cat flea. SEM