WThis is a list of butterflies of Bangladesh. About 430 species are known from Bangladesh, but it is estimated that a total number of 500 to 550 species occurs.
WEuthalia aconthea, the common baron, often called simply baron, is a medium-sized nymphalid butterfly native to Sri Lanka, India and southeast Asia. It flies with stiff wing beats and often glides. The wing is not flapped very far below the horizontal.
WEuthalia lubentina, the gaudy baron, is a species of nymphalid butterfly found in South, Cambodia, and Southeast Asia. It was first described by Pieter Cramer in 1777.
WEuthalia telchinia, the blue baron, is a species of nymphalid butterfly found in South and Southeast Asia. It was first described by Édouard Ménétries in 1857.
WHoraga onyx, the common onyx, is a species of lycaenid or blue butterfly found in Asia.
WTosena dives is a cicada species from Southeast Asia. The type was collected in Sylhet, Bangladesh. This species has also been recorded from Sikkim and Darjeeling in India.
WXylocopa aestuans, or Xylocopa (Koptortosoma) aestuans, is a species of carpenter bee. It is widely distributed in Southeast Asia.
WXylocopa caerulea, the blue carpenter bee, is a species of carpenter bee.
WThe Siamese rhinoceros beetle, fighting beetle, Xylotrupes socrates is a brilliant species of large scarab beetle belonging to the subfamily Dynastinae. It is particularly known for its role in insect fighting in Thailand.