Glasp

The Glasp is an insect-based B.O.W. that appears in Resident Evil Revelations 2. The name is a portmanteau of the words "glass" (referring to the creature's ability to render itself transparent) and "grasp" (its main method of attack). These creatures were encountered on Sushestvovanie Island in 2011 by Barry Burton.

Biology
The Glasp B.O.W.'s were created by Alex Wesker by infecting an insect species indigenous to the island with the T-Phobos virus. What species Glasps used to be is unknown, but Alex's genetic tampering has resulted in a grotesque hulk of a creature, roughly the size of a man but with a swollen, misshapen body, six small wings and eight spindly limbs ending in hooks for grappling prey. Though the Glasp's wings do work, its body is too bulky and heavy for it to fly properly and it is only able to lift itself a few inches off the ground.

The most remarkable trait of the Glasp is its ability to become invisible. Their bodies secrete a gas that impairs the vision of nearby animals, shrouding themselves from view. This allows them to sneak up on prey and grab them with their vice-like legs. When a victim is within its grasp, the Glasp will give birth to tiny offspring that will envelop the victim and feed upon it.

Combat
To the human eye, Glasps are invisible. However, during his mission on Sushestvovanie Island, Barry Burton was able to fight off these creatures with help from Natalia Korda. As a result of Wesker's experiments on her, Natalia was able to see the Glasps and guided Barry's aim as he opened fire on them. Glasps relied solely on their invisibility to get the drop on their victims, but the buzzing of their wings and Natalia's ability to detect them robbed them of their advantage.