''Blachia'' is the scientific name for two genera of organisms and may refer to:
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''Blachia'' (bug), a stink bug genus in the subfamily
Asopinae
Asopinae are a subfamily of Pentatomidae, stink bugs (family (biology), family Pentatomidae). They are predatory stink bugs that are useful as biological control agents against pests, even against other Pentatomid species, which are all herbivo ...
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''Blachia'' (plant), a genus of plant in the family Euphorbiaceae
{{genus disambiguation