Monster from Green Hell

Monster from Green Hell is a 1957 sciencefiction B movie shown as a doublefeature to the 1957 film The Brain from Planet Arous. It is also seen as a clone of Them.

Several months later, Brady reads a newspaper account of turmoil in Central Africa caused by gigantic monsters and surmises that the wasps in the missing rocket were exposed to huge amounts of cosmic radiation because an earlier, minimal overexposure had resulted in the birth of a spider crab twice the size of its mother. Brady and Morgan request a leave of absence from Washington and head for Africa to investigate.In Libreville, equatorial Africa, the territorial agent makes plans for them to travel to meet Dr. Lorentz. Once the safari is ready, Mahri, an Arab, leads Brady and Morgan on the fourhundred mile trek to Lorentz hospital. The safari battles brush fires, fever, drought and storms, eventually reaching the Lorentz compound where Lorna informs them that her father has not returned from a journey to Green Hell. Later, Arobi arrives with the news that Lorentz has been killed by a monster living in the cauldron of a volcano and gives Brady a giant stinger he removed from the doctors shoulder. After Brady analyzes the stinger, he confirms that it belongs to a giant, deadly wasp. Although Brady advises Lorna to stay at the hospital, she insists on accompanying him, Morgan, Mahri and Arobi to Green Hell. ........

Source: Wikipedia