Pupal Stage. The mosquito pupal stage is typically when sexual dimorphism first becomes visible. However, the 'yellow' strain (left) can be immediately distinguished from its naturally dark ...
John E. Woodmansee Photo: Tobacco hornworm on a tomato plant that has been attacked by a parasitic Braconid wasp. The white capsules on its back are the pupal stage of the tiny wasp. Braconid larvae ...
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