​Fleas (Order: Siphonaptera)

Ctenocephalides

Echidnophaga

Leptopsylla

Nosopsyllus

Orchopeas

Pulex

Xenopsylla

Flea Larva

---

​Flies (Order: Diptera)

Anopheles

Calliphora

Chrysops

Cochliomyia

Culex

Culicoides

Cuterebra

Dermatobia

Eristalis

Gasterophilus

Glossina

Haematobia

Hippelates

Hypoderma

Lipoptena

Lucilia

Lutzomyia

Melophagus

Musca

Oestrus

Phlebotomus

Phormia

Sarcophaga

Simulium

Stomoxys

Tabanus

Mosquito Larva and Pupa

---

Flukes (Subphylum: Trematoda)

Alaria

Brodenia

Clonorchis

Dicrocoelium

Echinoparyphium

Eurytrema

Fasciola

Fascioloides

Fasciolopsis

Fibricola

Gigantobilharzia

Heterobilharzia

Heterophyes

Nanophyetus

Notocotylus

Paragonimus

Paramphistomum

Platynosomum

Prosthogonimus

Rhopalius

Schistosoma

Stichorchis

Temnocephala

Immature Stages of Trematoda

---

Lice (Order: Phthiraptera)

Bovicola

Campanulotes

Chelopistes

Columbicola

Felicola

Goniocotes

Goniodes

Gyropus

Haematopinus

Heterodoxus

Linognathus

Lipeurus

Menacanthus

Menopon

Pediculus

Piagetiella

Polyplax

Pthirus

Solenopotes

Trichodectes

---

Mites (Subclass: Acari)

Caparinia

Cheyletiella

Chorioptes

Cytodites

Demodex

Dermanyssus

Echinolaelaps

Knemidokoptes

Lynxacarus

Megninia

Myocoptes

Notoedres

Ornithonyssus

Otodectes

Pneumonyssus

Psoroptes

Sarcoptes

Trombicula

Varroa

---

Protozoa (Kingdom: Protozoa), Bacteria, and Fungi

Anaplasma

Babesia

Balantidium

Besnoitia

Chilomastix

Cryptosporidium

Cyclospora

Cystoisospora

Cytauxzoon

Dientamoeba

Eimeria

Encephalitozoon

Endamoeba

Endolimax

Entamoeba

Eperythrozoon

Giardia

Gregarina

Haemobartonella

Haemoproteus

Hepatozoon

Histomonas

Iodamoeba

Klossiella

Leishmania

Leucocytozoon

Mycoplasma

Naegleria

Neospora

Plasmodium

Pneumocystis

Sarcocystis

Theileria

Toxoplasma

Trichomonas

Tritrichomonas

Trypanosoma

Other

---

Roundworms (Phylum: Nematoda)

Aelurostrongylus

Ancylostoma

Ascaridia

Ascaris

Ascarops

Baylisascaris

Brugia

Bunostomum

Capillaria

Chabertia

Cheilospirura

Cooperia

Cyathostominae

Dictyocaulus

Dioctophyma

Dipetalonema

Dirofilaria

Dispharynx

Dracunculus

Draschia

Enterobius

Filaroides

Globocephalus

Gongylonema

Habronema

Haemonchus

Heterakis

Libyostrongylus

Loa

Metastrongylus

Muellerius

Nematodirus

Oesophagostomum

Ollulanus

Onchocerca

Ostertagia

Oxyuris

Parascaris

Parelaphostrongylus

Physaloptera

Setaria

Spirocerca

Stephanofilaria

Stephanurus

Strongyloides

Strongylus

Tetrameres

Toxascaris

Toxocara

Trichinella

Trichostrongylus

Trichuris

Triodontophorus

Uncinaria

Wuchereria

---

Tapeworms​ (Class: Cestoda)

Amoebotaenia

Anoplocephala

Cittotaenia

Diphyllobothrium

Dipylidium

Echinococcus

Hymenolepis

Mesocestoides

Metroliasthes

Moniezia

Paranoplocephala

Raillietina

Spirometra

Taenia

Thysanosoma

---

​Thorny-Headed Worms (Phylum: Acanthocephala)

Macracanthorhynchus

Oncicola

---

Ticks (Subclass: Acari)

Amblyomma

Argas

Boophilus

Dermacentor

Haemaphysalis

Ixodes

Ornithodoros

Otobius

Rhipicephalus

---

True Bugs (Order: Hemiptera)

Cimex

Triatoma

---

Crustaceans

Pentastomes