biology

Neanaperiallus

Neanaperiallus 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 Neanaperiallus rather than just read about it. In short: Neanaperiallus is an extinct monotypic genus of parasitic wasp in the Eupelmidae subfamily Neanastatinae containing only a single species, Neanaperiallus masneri. The genus is solely known from the Early Eocene Baltic amber deposits in the Baltic Sea region of Europe.

Key takeaways

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

Reference excerpt

Neanaperiallus is an extinct monotypic genus of parasitic wasp in the Eupelmidae subfamily Neanastatinae containing only a single species, Neanaperiallus masneri. The genus is solely known from the Early Eocene Baltic amber deposits in the Baltic Sea region of Europe.

History and classification Neanaperiallus masneri is known only from one fossil, the holotype, number "AMNH B-JWJ-265", which is a single female specimen preserved in a nearly round amber block shaped with five unequal sides. The block is currently residing in the American Museum of Natural History paleoentomology collections in New York City, USA. N. masneri was first studied by Gary A. P. Gibson, with his 2009 type description being published in the journal ZooKeys. The generic name was coined by Gary Gibson as a combination of the Ancient Greek word periallos, meaning "before all others", and from "neana" from the subfamily name Neanastatinae. This is in reference to the possible relationship of Neanaperiallus to the other genera in Neanastatinae. The specific epithet "masneri" was designated by Gary Gibson in honor of Lubomír Masner in recognition of his many contributions to the study of parasitic wasps.

Description Neanaperiallus masneri is 3.3 millimetres (0.13 in) in length when the ovipositor is included. The general coloration is a yellow tone, but it is possible the species may have in fact been a uniform brown based on clear views of the acropleuron and several of the abdomen tergites. Much of the female is obscured, with a coating of white mold covering the entire right side of the specimen. Much of the face is obscured by a large air bubble and numerous tiny bubbles reduce the clarity of the amber. Though the forewings are uniformly hyaline in coloration the right wing still obscures the top of much of the gaster and metanotum. Basally the forewings are setose whereas the costal cell is setose along the front edge only. Beyond the parastigma the setae grow sparse and the wing apex is apparently bare. The mesosoma is short and stocky in comparison to the other genera which are placed in the Neanastatinae subfamily and many member genera of Eupelmidae overall. Similarly N. masneri has notably short antennae and middle legs. In general dorsal appearance the genus is very similar to males of the subfamily Eupelminae and the family Pteromalidae. Gary Gibson notes that many features of the species are not describable from the single known specimen, and that more complete specimens are needed to fully describe the species. Because of the shape and short length of the ovipositor sheath Gibson postulates that Neanaperiallus masneri was parasitic on hosts which were exposed or near the surface of wood or other substrates.

References

Illustrations

Worked examples

Example 1 — a first encounter with Neanaperiallus

Start with the simplest possible case. Write down what Neanaperiallus 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 Neanaperiallus 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 Neanaperiallus 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 Neanaperiallus

In research: Neanaperiallus 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 Neanaperiallus 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: Neanaperiallus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Baltic amber, Eocene insects, Eupelmidae, so understanding it makes those chapters shorter.
In everyday life: Look for Neanaperiallus 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 Neanaperiallus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Neanaperiallus 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 Neanaperiallus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Neanaperiallus in simple terms?

Why does Neanaperiallus 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 Neanaperiallus?

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 Neanaperiallus.