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Catawba worm

What Do Catalpa Worms Eat?

We just received the question, "What do catalpa worms eat?" We are happy to answer this question and to provide some information to our reader about the worms and their food source! Continue reading [...]

Tan “Worm” on Sidewalk is Not a Parasite

A reader reached out to us about a worm she thought might be a parasite. We believe it is probably a slug or a caterpillar. Continue reading [...]

Larvae in Laundry Room Remain Unidentified

Recently, we received several amazing photographs of a couple of creatures. Our reader, who submitted them, says that he found them in his laundry room. He describes them as caterpillars or larvae that are about 1/2” (~1.25cm) long. He would like us to help him identify their species.Identifying larvae and caterpillars is notoriously difficult. This is because all larvae change appearance as they move from one instar to another. Also, many species’ larvae look alike. So, two larvae of different species may look more alike than two larvae of the same species in different instars.Many larvae are fussy eaters, so it is often easiest to identify a caterpillar or larva by its eating habits. However, we do not know of any larvae that eat laundry, so that method will not help Continue reading [...]

How a Caterpillar or Larvae becomes a Butterfly, Beetle, or Other Adult

Here at All About Worms we spend most of our time discussing creatures that are not worms. Most of the questions we get from readers are about larvae and caterpillars (a caterpillar is the larval form of a moth or butterfly). Continue reading [...]

What is an Instar?

We often use the term “instar” when discussing larvae and caterpillars. Today, we are going to discuss instars in depth, so that we all know exactly what we are talking about.According to the Amateur Entomologists’ Society, an instar is “the name given to the developmental stage of an arthropod between moults.” So, to understand instars, we must first know what “moult” (spelled “molt” in the US) means.Arthropods (animals such as butterflies, insects, spiders, and centipedes) go through several life stages as they grow from infants to adults, much like humans. However, humans and arthropods have different skeletal systems. Our bones are a living part of our bodies. They grow along with our muscles and skin.Butterflies and other arthropods have exoskeletons. They Continue reading [...]

The Best Way to Remove Caterpillars from Your Trees and Plants

We get many questions from worried readers who have seen caterpillars on trees or plants. For the most part, these creatures aren’t causing any real harm and can be left alone. However, some species can be quite destructive and should be removed for the health of the plant. Continue reading [...]
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