If you're looking for manga similar to Mushihime, you might like these titles.
Socially-awkward Uehara has wanted to be an entomologist since he was a kid, and he spent all his time chasing that dream. When he failed, he was forced to come back to his home island, where his mother was completely unsympathetic to his problems. He arrived to his home island along with many other tourists, who were there to observe an unusual astronomical event. Afterward, Uehara encountered a strange bug whose bite transformed his body (including his penis). What is happening to Uehara, and what will become of his life?
"The Planet of Squirming Insects" is another name for the arid planet Lilythea. In its wastelands dominated by the ecosystem called "insects" Primabella, a "bee," saves Lamritta, an "ant," who is attacked by worms. Lamritta calls her savior onee-sama, and the girls gradually become closer. But the history of an endless war between the bees and the ants drives a great wedge between them.
A certain summer day, as the cicadas sing loudly. A man with no money and no place to belong tries to end his life, however is unable to take the last step. While wavering between life and death, he sees a gourmet food program on television, and realising he's never once eaten crab in his life decides that "For my last day on this Earth, I'll eat crab". Settings his sights on the wife who lives in a high-class neighbourhood that he happened across in a library, he forces his way into her home. And thus, he demands money from her, however... things go in an unexpected direction.
Wakou Ichiro decides to return home early from work to celebrate his second anniversary with his wife. But, when he opens the door of his house.... He finds his wife cheating on him! Although the marriage was short-lived, his life changes again when suddenly, a certain woman appears in front of him?
Hired for an eviction of an apartment resident, lawyer Midorikawa visited a mysterious apartment. Since the visit, he has been haunted by these visions of "Angels," small naked girls who have faces that of a doll. These Angels freely teleport between TV, phone, and computer monitors and enter the human body. They feed off of the human spirit, what they call "nectar." Are these Angels real? Are they part of a horrific dream? Through Midorikawa's body, they escape the infected apartment. Now, they spread their horrors upon the city!
A tunnel in a mountain that a college student visited with the intention of trying to deliver a video. The giant bugs that appeared there attacked them!