biology

Peruphasma schultei

Peruphasma schultei is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Peruphasma schultei rather than just read about it. In short: Peruphasma schultei, known as the black beauty stick insect and the golden-eyed stick insect, is a species of phasmid found in the Cordillera del Condor region of northern Peru. In the wild the insect feeds on Schinus plants, but will feed on privet, Aucuba japonica and honeysuckle in captivity.

Key takeaways

Peruphasma schultei belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Peruphasma schultei to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Peruphasma schultei from memory before moving on to harder problems.

Reference excerpt

Peruphasma schultei, known as the black beauty stick insect and the golden-eyed stick insect, is a species of phasmid found in the Cordillera del Condor region of northern Peru. In the wild the insect feeds on Schinus plants, but will feed on privet, Aucuba japonica and honeysuckle in captivity. In Peru they are only known to exist in a region of less than 5 hectares, usually on volcanoes or mountains, but since their discovery they have become increasingly popular as pets worldwide due to their unusual colouration and they are now bred regularly in captivity.

Description A large and compact species, females can reach 5.5 cm (2.2 in) and are larger than males, which measure 3.8 to 4.3 cm (1.5 to 1.7 in). They have a black body, yellow eyes and red/brownish mouth parts, with adults having bright red vestigial wings. When disturbed, adults of this species are able to spray a defensive liquid from glands at the rear of the head which can be irritating to the skin and eyes.

Habitat P. schultei has been found in regions like the Cerro Casapita, which consists of grasslands and other vegetation the species is known to live in. The species best thrives in grassland and forest habitats, however they cannot handle pasturelands.

Conservation status The insect is listed on the IUCN Red List as critically endangered and was last updated in May 2018. Since then, their population has been actively decreasing. While no direct conservation efforts have been made for the species themselves, they are known to inhabit at least three known protected areas that were created for the preservation of the endangered Marañon poison frog.

Threats Multiple threats to Peruphasma schultei are the result of human activities. These include habitat loss due to converting land for agriculture and livestock farming. There are also natural threats from wildfires.

Etymology This species is named after Rainer Schulte, who collected the original specimens. One of its common names that is listed under the IUCN red list is the Golden-Eyed Stick Insect.

Gallery

References

External links Media related to Peruphasma schultei at Wikimedia Commons Phasmid Study Group: Peruphasma schultei Aquazoo Löbbecke Museum Düsseldorf Peruphasma schultei

Illustrations

Worked examples

Example 1 — a first encounter with Peruphasma schultei

Start with the simplest possible case. Write down what Peruphasma schultei claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Peruphasma schultei before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Peruphasma schultei ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Peruphasma schultei

In research: Peruphasma schultei appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Peruphasma schultei in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Peruphasma schultei is common in secondary-school and first-year university syllabi. It links to neighbouring topics Endemic insects of Peru, IUCN Red List critically endangered species, Insects described in 2005, so understanding it makes those chapters shorter.
In everyday life: Look for Peruphasma schultei outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Peruphasma schultei in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Peruphasma schultei means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Peruphasma schultei out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Peruphasma schultei in simple terms?

Why does Peruphasma schultei matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Peruphasma schultei?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Peruphasma schultei.