Renai Chuudoku

From Psycho Pandas (back cover translation):

It’s not male bonding, it’s “animal ♂” bonding. Once the spider, Shiori, met the beautiful and gentle butterfly, Midori, he fell in love. However, Midori is “feed” to Shiori. A love that cannot possibly have a prayer… The other bugs in the story include a cicada that was born merely a week ago and his unrequited love, a camouflage bug that crosses their path… And what about the bugs who shoulder many difficulties and their earnest pure love!? There’s also random bug knowledge.? The popular work drawn especially for serialization.★