[3] A number of his schemes revolve around transforming others into weaker, subordinate versions of himself, leading to clashes with Batman and the Creeper in The Brave and the Bold #80, and with Green Arrow and the Black Canary in World's Finest Comics #248-249.

In the post-Crisis DC Universe, the Hellgrammite returns as a recurring foe for Superman, first encountering the Man of Steel after being hired (by then-LexCorp board member George Markham) to kill Lex Luthor.

[4] In the Underworld Unleashed crossover, he makes a deal with Neron, trading his soul to gain increased power.

Hellgrammite is ultimately defeated after Donna Troy ties up a villainess named Harpi with her lasso, and then swings her into the villain, knocking both of them out.

[5] Hellgrammite is super-strong and durable, able to jump long distances, secrete adhesives, and produce cocoons that can transform those imprisoned in them into drone versions of himself.