虫

convulsions (in a child); nervousness; short-temperedness

bug thought to cause children's diseases

Dorcus rectus (species of stag beetle)

Colloquial

hellgrammite (larva of dobsonfly species Protohermes grandis)

rice pest

springtail (wingless insect of the order Collembola)

trematode (i.e. a fluke)

moss animal (any animal of phylum Bryozoa)

Dalmatian chrysanthemum (Tanacetum cinerariifolium); Dalmatian pyrethrum; Dalmatian pellitory

ranchu; variety of goldfish

hydatid

plant hopper (any insect of family Delphacidae); leafhopper

Wuchereria bancrofti (species of filaria)

smaller longheaded locust (Atractomorpha lata)

sawtooth stag beetle (Prosopocoilus inclinatus); saw stag beetle

pinworm (Enterobius vermicularis); threadworm

sun spider (any arachnid of order Solifugae); wind scorpion; camel spider; solpugid

parasitology; helminthology

larva

shipworm (esp. naval shipworm, Teredo navalis); teredo

harvestman; daddy longlegs (arachnid of order Opiliones)

hookworm

foraminifer; foraminiferan

tapeworm; cestode

exterminating insects; pest control; deinsectization