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The caterpillar larvae of the Psychidae construct cases out of silk and environmental materials such as sand, soil, lichen, or plant materials. These cases are attached to rocks, trees or fences while resting or during their pupa stage, but are otherwise mobile. The larvae of some species eat lichen, while others prefer green leaves. In many species, the adult females lack wings and are therefore difficult to identify accurately. Case-bearer cases are usually much smaller, flimsier, and consist mainly of silk, while bagworm "bags" resemble caddisfly cases in their outward appearance – a mass of (mainly) plant detritus spun together with silk on the inside. Bagworm cases range in size from less than 1 cm to 15 cm among some tropical species. Each species makes a case particular to its species, making the case more useful to identify the species than the creature itself. Cases among the more primitive species are flat. More specialized species exhibit a greater variety of case size, shape, and composition, usually narrowing on both ends. The attachment substance used to affix the bag to host plant, or structure, can be very strong, and in some case require a great deal of force to remove given the relative size and weight of the actual "bag" structure itself. Body markings are rare. Adult females of many bagworm species have only vestigial wings, legs, and mouthparts. In some species, parthenogenesis is known. The adult males of most species are strong fliers with well-developed wings and feathery antennae but survive only long enough to reproduce due to underdeveloped mouthparts that prevent them from feeding. Their wings have few of the scales characteristic of most moths, instead having a thin covering of hairs.
Our garden in Windwardside at the foot of MountScenery, a volcano on Saba in the Caribbean Sea.
I first thought this thing was a bit of dirt attached to our porch and I swiped it away. While swiping it I felt it was attached and somehow stringy. I also noticed the bits of silk still attached to the porch. It fell on the floor next to the rose plant and at that time I did not have time to do something about it. The next day (today) I remembered the thing so I went to investigate. I could not find it where it had dropped and suddenly my eye caught it hanging on the branch of my tiny rose bush! It had moved itself to the branch and attached! On close inspection I can see the small bits of plant matter clinging onto the cocoon with silk. How FASCINATING! I am so glad it wasn't hurt. New spotting of same Bagwom Moth and pictures of it's head here https://www.projectnoah.org/spottings/20...
Spotted on Dec 21, 2019
Submitted on Dec 21, 2019
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