Figure 3–5 in An overview of cocoon morphology of Sphecidae (Hymenoptera: Apoidea)

Figure 3–5. Cocoon morphology of species of Sphecinae. 3, Sphex opacus: 3(a) internal capsule, with a last instar larva inside; 3(b) internal felt-like covering of the internal capsule; 3(c) external felt-like covering of the internal capsule; 3(d) external capsule. 4, Isodontia costipennis: 4(a) external capsule; 4(b) internal capsule, with an adult wasp inside. 5, Prionyx thomae: 5(a) external capsule; 5(b) internal capsule.