Possible Clues:

• Chigger, e.g.
• Insect just out of egg
• Worker potentially right to interrupt very heated outpouring
• Grub sounds like hot stuff
• Grub of e.g. beetle
• Young fly
• Butterfly in youth
• Grub which is red hot, about right
• Caterpillar perhaps showing some cellular variation
• Stage before the pupa