Step 1: First, draw a circle for the fly's head.
Step 2: Next, draw two arcs in the fly's head for the eyes.
Step 3: Draw a small circle at the top of the head for the oceli. Fill it with smaller circles for detail.
Step 4: Draw interconnected squiggly lines for the maxillary palps.
Step 5: Now, draw the proboscis. Add a square beaneath the head. Connect three vertical rectangles to the square. Connect an oval to the rectangles.
Step 6: Draw short lines all over the fly's head and proboscis for its hair.
Step 7: Your fly is now done! Add some black and red to color your fly.
How to Draw a Fly Head – Step-by-Step Tutorial