Tortoise beetle

The adult beetles are distinctive in that the margins of the prothorax and elytra are expanded, largely concealing the head and appendages. The expanded margins are not pigmented, appearing nearly transparent. The beetles are fairly small, measuring 5.0 to 7.0 mm in length. The beetles vary slightly in color but invariably are orange colored, often golden metallic, and are sometimes called "goldbugs."

Larvae are broad and flattened and adorned with branched spines. Their thoracic legs are short and thick, and unlike many chrysomelids they lack an anal proleg. The color of the larva is yellowish to reddish-brown. There are three larval instars. The larvae display the habit of carrying their cast skins and fecal material attached to spines arising from the posterior end of their body, a structure called an "anal fork." The anal fork is movable, and is usually used to hold the debris over the back of the body, forming a "shield" which deters predation. Larvae mature in 14 to 21 days.

(info taken from the Univ. of Florida Entomology Dept. webpage)