List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• black widow spider (Latrodectus mactans)

usually written using kana alone  noun  noun (generic) 

• carrion crow (Corvus corone)

usually written using kana alone  noun  noun (generic) 

• jungle crow (Corvus macrorhynchos)

usually written using kana alone  noun  noun (generic) 

• common raven (Corvus corax)

usually written using kana alone  noun  noun (generic) 

• Okinawa rail (Gallirallus okinawae)

usually written using kana alone  noun  noun (generic) 

• blister beetle, oil beetle (insects family Meloidae)

rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• bean blister beetle (Epicauta gorhami)

usually written using kana alone  colloquial  noun  noun (generic) 

• tiger beetle (esp. the Japanese tiger beetle, Cicindela japonica)

usually written using kana alone  noun  noun (generic) 

• American badger (Taxidea taxus)

usually written using kana alone  noun  noun (generic) 

• Kodiak bear (Ursus arctos middendorffi)