This is a vintage illustration of a fly, likely a scientific or anatomical drawing. The fly is depicted in profile, showing its elongated body, six legs, and a pair of delicate, veined wings. The body is segmented, with a distinct head, thorax, and abdomen. The abdomen appears to have a pattern of light and dark bands. The legs are long and slender, and the wings are transparent with visible veins. The drawing is done in a detailed, precise style, typical of scientific illustrations. The background is a pale, off-white color. Below the illustration, there is text that reads 'FIG. 27. RHYNGIA. x 18.' and 'to face page 96.'