Tip Top Bio-Control Aphidius Colemani Beneficial Parasitic Wasps, Bottle of 1,000A Harmless, Tiny, Parasitic Wasp That Attacks Several Species Of Aphids Live insects from Tip Top Bio Are Expedited To Ensure Your Insects Arrive Quickly & Safely. Used mostly in greenhouses. Adult are tiny, black, flying wasp, 2 3 mm long with long antennae. Adult females lay eggs by puncturing aphids and depositing their eggs inside. The eggs then hatch into larvae which consume the aphid. The larvae then spins a cocoon inside the dead aphid. The