Wasp Deformity

What is wrong in these pictures? Look closely (click on pictures to enlarge) and you'll see that this paper wasp has little or no wings. An emtomologist friend of mine said that paper wasps develop fully in their cell and when they emerge they do so with a full set of wings. So what happened?


He said it could've been some sort of genetic defect or possibly due to the effects of some sort of wasp parasite that may have invaded the wasp during its development. Whatever the cause it's an interesting find. If anyone out there has any ideas or a similar experience drop me a line.