The Feeding Habits of Black Witch Moths: What They Eat

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Black Witch moths, scientifically known as Ascalapha odorata, are fascinating creatures often found in the tropical regions of the Americas.

With their impressively large size and wingspan of up to 7 inches, these moths might remind you of bats due to their long forewings and nocturnal habits.

Now, you might be curious about what these intriguing insects eat. Well, as caterpillars, Black Witch moth larvae primarily feed on the leaves of various plants, allowing them to grow and eventually transform into fully-fledged moths.

Understanding their diet can help you better appreciate their role in the ecosystem and their overall life cycle.

What Do Black Witch Moths Eat

Male Black Witch

Physical Features

You might be curious about the physical features of the black witch moth. These moths are known for their distinct appearance and large size.

Wingspan: The wingspan of black witch moths is quite impressive, usually ranging from 4 to 7 inches, with females being slightly larger than males.

Wing Color: The color of the wings in male and female black witch moths varies. Males possess mottled brown wings that help them blend in with their surroundings. On the other hand, females have a darker shade, which can be mistaken for black.

Forewings: An interesting aspect of the black witch moth’s appearance is the patterning on its forewings. These patterns can sometimes appear like the silhouette of a witch or wizard, which is likely why they are called “black witch.”

Black Witch

Here is a quick comparison of the physical features of male and female black witch moths:

Feature Males Females
Wingspan Around 4-6 inches Around 5-7 inches
Wing Color Mottled Brown Darker Shade

Some additional features of the black witch moth include:

  • They have a diurnal resting posture with wings folded to expose the forewings, making them look like a dead leaf.
  • Their hindwings are decorated with a series of small, white spots along the margin.

As you can see, the physical features of the black witch moth play a significant role in making it a unique species of insect.

Understanding these traits can help you identify them in the wild and appreciate their fascinating appearance.

Dietary Habits

Black Witch Moths (Ascalapha odorata), have an interesting diet.

Nectar: They are known for feeding on nectar from flowers. Black Witch Moths visit your garden and enjoy the sweetness provided by various blossoms.

Tree Sap: These moths also consume tree sap, which is rich in nutrients. They can often be found feasting on the sap that oozes from trees, as it provides them with essential sugars and minerals.

Here’s a comparison table of their dietary preferences:

Food Source Nutrients Provided Availability
Nectar Sugars, amino acids Common
Tree Sap Sugars, minerals Less common

Interesting to note, Black Witch Moths are attracted to certain fruits, such as bananas.

While they don’t directly consume fruit, they are drawn to the sweet smell and may feed on fruit juices or nectar available on surfaces.

To sum it up, Black Witch Moths primarily feed on nectar and tree sap. They are attracted to the sweet smell of certain fruits but do not consume them directly.

By feeding on these substances, these moths maintain their energy and fulfill their nutritional needs.

Black Witch

Habitat and Geographic Distribution

The Black Witch Moth (Ascalapha odorata) is primarily found in warm tropical regions.

You’ll typically see these moths in areas such as Mexico, the Caribbean, Central America, and parts of South America like Brazil, Argentina, and Paraguay.

They are also prevalent in the southern United States, including South Texas and the Rio Grande Valley.

During migration, they can temporarily extend their range to North America, reaching up to Canada. However, it’s important to note that they are not native to the continental United States or Canada.

In their natural habitat, the Black Witch Moth thrives in forested areas and deciduous woodlands. They are typically nocturnal creatures, which means they are active during the night and prefer resting in shaded or dark areas during the day.

Here are some key habitats and regions of the Black Witch Moth:

  • Mexico: Primary native habitat
  • Caribbean: Commonly found in these tropical islands
  • Central America: Another suitable area for their habitation
  • Southern United States: Regions like South Texas and Rio Grande Valley
  • South America: Countries such as Brazil, Argentina, and Paraguay
  • North America: Migratory presence reaching up to Canada, but not native

These large moths can adapt to various environments and are known for their impressive migratory patterns.

So, if you happen to encounter one of these striking moths, remember that they are likely just passing through on their journey to warmer regions.

Black Witch Moth

Breeding and Lifecycle

The breeding and lifecycle of the black witch moth consist of four major stages: eggs, larva, pupa, and adult moth. Let’s discuss each stage briefly.

Eggs: The female moth lays clusters of eggs on the leaves of the host plant. After a few days, the eggs hatch into caterpillars.

  • Color: Pale yellow
  • Shape: Ovoid

Caterpillar (Larva): Once hatched, the caterpillars begin feeding on the leaves of the host plant, growing through a series of molts.

  • Green and yellow with white, yellow, and black stripes
  • Black spots on body
  • Length: Up to 3-1/2 inches

As the caterpillar grows, it eventually forms a cocoon and enters the pupa stage.

Pupa: Inside the cocoon, the larva transforms into an adult moth. This metamorphosis process takes about two weeks.

  • Pupation occurs within the cocoon
  • Duration: Approximately 2 weeks

Adult Moth: Once the pupal stage is complete, the adult black witch moth emerges.

  • Wingspan: Up to 4 inches
  • Color: Mottled grayish-black
  • Shape: Triangular when at rest

Their lifespan as an adult moth is relatively short, often just a few weeks, during which they focus on mating and laying eggs to start the next generation of their lifecycle.

Male Black Witch

What Do Black Witch Moths Eat? Their Host Plants

Black witch moth caterpillars (Ascalapha odorata) are known to feed on a variety of host plants during their larval stage.

These plants provide essential nutrients for the growth and development of the moth larvae. Some common host plants include:

  • Legumes
  • Mesquite
  • Acacia
  • Kentucky coffee tree
  • Candle bush

For example, legumes are a popular choice for black witch moth larvae because they are rich in proteins, which are essential for the larvae’s growth.

Similarly, mesquite and acacia trees provide both shelter and nourishment to the larvae, allowing them to feed on tender leaves and buds.

The Kentucky coffeetree and the candle bush are also host plants for black witch moth larvae, offering a variety of foliage for them to consume. These plants provide ample nutrients for the moth larvae to develop into healthy adult moths.

Adult moths, on the other hand, have a different diet. Since their proboscis, or feeding tube, is relatively small in comparison to some other moth species, they don’t rely heavily on nectar as a primary food source.

Instead, they consume water and surficial nutrients found on wet substrates, like tree bark or soil.

Cultural Significance

The Black Witch moth, also known as Ascalapha odorata, is often associated with various superstitions and beliefs. In Latin American folklore, it is sometimes referred to as the “mariposa de la muerte” or “butterfly of death” source.

People believed that the appearance of this moth was an omen of impending death.

However, not all cultures view the Black Witch moth as a symbol of doom. In some regions, it’s considered a “money moth,” thought to bring wealth and good fortune.

Its striking appearance and nocturnal habits make the Black Witch moth superficially resemble a bat, thus adding to its mystique source.

This intriguing creature has also inspired artists and novelists. For example, in the popular novel Silence of the Lambs, a Black Witch moth plays a significant role in the storyline.

The moth’s association with darkness, death, and transformation serves as a symbolic element in the narrative.

Male Black Witch

Behavioral Traits

Black Witch moths are fascinating creatures with some distinctive behavioral traits. They have nocturnal habits, meaning they are active during the night while resting during the day.

Since they prefer darkness, you’ll mostly find them under the cover of night, exhibiting their unique behaviors. Black Witch moths are also known for their migration patterns.

Migration in these moths usually takes place between June and October. During this time, you might observe an increase in their abundance, especially in areas where their preferred food sources are found.

  • Nocturnal habits
  • Migration between June and October

 

Interactions with Humans

Black Witch Moths are fascinating creatures known for their large size and nocturnal habits. These moths have various associations with human culture, ranging from superstitions to their impact on agriculture.

In some places, such as Mexico and the Bahamas, the Black Witch Moth is known as the “money moth” due to the belief that spotting one brings financial fortune.

They are also linked to the idea of winning the lottery, further emphasizing their perceived connection to wealth. Additionally, they have a presence in Texas, Hawaii, and other parts of the United States, where people might encounter them during their nocturnal flights.

However, not all human interactions with Black Witch Moths are positive. They can sometimes become agricultural pests, particularly when their caterpillars feed on leaves of various crops.

This can lead to detrimental effects on plants and a potential decrease in crop yield.

Predators and Threats

Birds and bats are among the main predators of the black witch moth. These flying creatures often feed on moths, keeping their populations in check. Since you might be wondering about specific predators, here are a few examples:

  • Birds: Swallows, robins, and mockingbirds are just a few of the many birds that will prey on black witch moths.

  • Bats: Brown and big brown bats are known to consume various moth species, including the black witch moth.

In addition to birds and bats, some arthropod species may also pose a threat to black witch moths, particularly during their vulnerable larval stage.

This includes various parasitic wasps and spiders who hunt various insects.

Conclusion

The Black Witch Moth, known scientifically as Ascalapha odorata, is a notable species primarily found in the tropical regions of the Americas.

These moths, recognized for their large wingspan and nocturnal habits, have a distinct diet that plays a crucial role in their lifecycle.

As caterpillars, they feed on the leaves of a variety of plants, which is essential for their growth and transformation into adult moths.

In their adult stage, Black Witch Moths primarily consume nectar and tree sap, and are also attracted to the sweet scents of certain fruits.

Understanding the dietary habits of the Black Witch Moth provides insight into their ecological role and the importance of their presence in various habitats across the Americas.

Authors

  • Bugman

    Bugman aka Daniel Marlos has been identifying bugs since 1999. whatsthatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

    View all posts
  • Piyushi Dhir

    Piyushi is a nature lover, blogger and traveler at heart. She lives in beautiful Canada with her family. Piyushi is an animal lover and loves to write about all creatures.

    View all posts
Tags: Black Witch Moth

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13 Comments. Leave new

  • the DNR in their infinite wisdom released a GENERALIST parasitic invasive bug to control gypsy moths that are decimating our native silk moths. are we witnessing the extinction of our native silk moths? it seems that all the insects I enjoyed watching when I was young are gone or disappearing. I haven’t seen any silk moths in the fox valley [wis.] in a decade. is there anything that can be done? please reply, mark H.

    Reply
    • The problem with releasing generalist parasites is that they are opportunistic. Are you able to provide any information on the parasite that was released by the DNR?

      Reply
    • I’m in milwaukee and I’ve noticed the same thing. They’ve been spraying the nuclear virus, as well as other bio-engineered bacteria etc, poison, and parasites, and yet, the only caterpillars I’ve seen are sure enough, gypsy moths. When I was a kid I found luna, cecropia, promethea and even spicebush swallowtail larvae on a regular basis, haven’t seen a single cocoon or caterpillar in ten years, and this year I’ve been hunting for them significantly.there is still tons of “fall” moths, the various species that are .5 to 1.5 inches that come out in August and september, but it scary for me because I breed moths, and I haven’t been affected yet but I know it could happen at any moment. I’ve been told they won’t be using the worst viruses anymore, so I’ll be breeding and releasing as many outcrossed moths as I can next spring (bred/raised this summer). Mark, if you are interested in collecting eggs or raising releasing or swapping eggs/cocoons either for gaining a species you don’t have or having unrelated bloodlines or want eggs and are willing to raise and release them (releasing caterpillars is pointless at this stage)please post your email and I’ll get in contact with you. The upside to collecting eggs is that we’d be simultaniously conducting a survey and will have record to show numbers and species to share and compare with others in a given area and provide proof that what the response by and what the dnr has done to our state is akin to the old lady who swallowed a fly. I’m in milwaukee. As for this post, Ive seen black versions of this witch moth 3 times in milwaukee, I suspect 2 sightings may have been the same as they were 1 week apart, but they were always at the hight point of my house hugged up against the siding as if they were at my lights and then kept crawling higher untill the sun came up,.

      Reply
  • Some years ago had one on my screen of my door in Phoenix AZ.

    Reply
  • this is a tardy reply, from mark h. Appleton wis. I have undertaken to raise some silk moth catepillars this year with mixed success. the promethias are doing well on sweet cherry leaves. the cecropia on apple leaves. 10 larva and 12 larva respectively a small test run for release and wild pairings a plus and a way to see if any are still here naturally. and in what numbers. one sighting won’t be accurate but anything will help…..a follow up report later as to any success……….mark h.

    Reply
  • I think I found this same kind of moth today. Had to have a 5 inch wing span. I posted it on Facebook!!!!

    Reply
    • You did not provide a location. In our opinion, it is more likely a Black Witch, a species that is known to migrate from Mexico to a far north as Canada.

      Reply
  • Some of the websites about Black Witch moths said that the moths may be blown in with tropical moisture. I don’t know if there is a correlation here, but we have had very little rain this year. Our monsoon rains usually start in July. Not this year. It has been one of the driest July’s in years. Two days after finding this guy in my garage, the weather man says that the rains coming up from Mexico have finally arrived. If this guy was a harbinger of rains, he is welcome here.

    Reply
  • Gary Goodman
    July 1, 2020 11:07 pm

    Black Witch moth flying around our home about 10 miles north of Cheyenne, Wyoming. Spotted on July 1, 2020 at around 4pm fluttering by our back door. It appeared to be black while flying, but vividly marked when it landed on our screen door under a covered deck. It stayed there for several hours until just after dark, and finally left.

    Reply
  • Earl McKinney
    July 10, 2020 10:08 am

    Stacy, we just found one in Wapiti, Wyoming. I wish I could share a picture.

    Reply
  • I had one of these in my backyard today. I thought it was a bat. I live in Thornton Colorado

    Reply

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