In a view of a spiracle of a first-instar Apis mellifera larva under scanning electron microscope, “spheroid” structures can be seen, which researchers suggest may be droplets of an enzyme that the larva secretes to aid in hatching. Leave a Reply Cancel reply Search Search for... Search Get New Posts in your Inbox! Enter your email address to subscribe to Entomology Today. You'll receive notifications of new posts by email. Email Address Get Certified!