Miroceramia

Key takeaways

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

Reference excerpt

Miroceramia is a monotypic genus of stick insects, containing Miroceramia westwoodii as the only described species. It is the only fully winged one of the subfamily Obriminae.

Characteristics The species and thus also the genus differ from all other Obriminae by the presence of fully developed wings, the very short and medial extended mesothorax, which is hardly longer than the prothorax, as well as the very long tarsi, which are more than half as long as the corresponding tibia. In the females, the downward directed secondary ovipositor is unique. The eggs can be distinguished from those of related species by their strong longitudinal curvature, whereby the capsule dorsal convex and ventrally concave. With about 4.6 centimetres (1.8 in) in the male, and 7 to 7.3 centimetres (2.8 to 2.9 in) in length in the female, Miroceramia westwoodii is a medium-sized Obriminae species. Their most noticeable feature is the presence of wings in both sexes. The thorax is prickly on the surface of the pro- and mesonotum as well as the pleura. The pronotum is trapezoidal and much narrower at the front edge than at the back. The mesothorax is noticeably shortened and only about 1.2 times longer than the prothorax. The antennae are long and slender. They consist of 26 segments. Both fore and hind wings are present, with the hind wings protruding beyond the anterior ones. The forewings are designed as tegmina and reach about two thirds of the length of the hind wings (alae). The hind wings extend to the sixth or seventh segment of the abdomen. The tegmina are elongated and narrow towards the end. At the base they are strongly convex and equipped with two spines. The hind wings are ocher and translucent in the anal field. According to a note from M. J. D. Brendell on the label of a male he collected in the Manusela National Park on Seram Island, which is deposited in the Natural History Museum, London, these animals are capable of stridulation using their wings. In females, segments two to four of the abdomen are roughly the same width and about twice as wide as they are long. The segments behind it gradually taper towards the tip. The secondary ovipositor is long and strongly curved downwards. Its upper part, the epiproct, is blunt and shorter than the lower part. The longer, ventral part of the ovipositor, called subgenital plate, ends with a point. The abdomen of the males is approximately parallel. Their second to seventh segments are almost equally wide and slightly wider than they are long. The segments are pointed at the rear, outer corners and there is a slender spine on the second to fifth segment.

Distribution The few representatives of the species found so far come from the area of the Wallace line, more precisely from the Moluccas island Seram and from the north of Sulawesi.

Taxonomy The species was described in 1865 by Henry Walter Bates as Heteropteryx westwoodii. The specific epithet is dedicated to John Obadiah Westwood. An adult female is deposited as a holotype in the zoological collection of the Oxford University Museum of Natural History. William Forsell Kirby transferred the species to the genus Haaniella established by him in 1904. Klaus Günther described a species called Miroceramia pterobrimus using a male holotype. The species name pterobrimus means winged Obrimus and indicates both the proximity to the already known representatives of the Obriminae, as well as the peculiarity of this species, namely the presence of wings. The holotype is deposited at the State Museum of Zoology, Dresden. In 1998 Philip Edward Bragg introduced Miroceramia pterobrimus as synonym to Haaniella westwoodii. Since he synonymized the species, but the genus remained valid, the newly combined name Miroceramia westwoodii resulted. Type species for the genus Miroceramia is the synonymized Miroceramia pterobrimus. Due to the clear differences between Miroceramia westwoodii and almost all other Obriminae, Oliver Zompro established the tribe Miroceramiini for this species in 2004. He also included the monotypical genus Mearnsiana, which up to now was only known from the juvenile female holotype of Mearnsiana bullosa. After their adult wingless Imago became known and after a closer comparison of their morphology, Mearnsiana bullosa was included in the Tribus Obrimini convicted. As a result, the tribe Miroceramiini initially became monotypical, before it was made a synonym for the Obrimini in 2021 after the publication of genetic studies. The monotypical genus Pterobrimus was identified by this investigation as the sister genus of Miroceramia.

References

External links Data related to Miroceramia westwoodii at Wikispecies Media related to Miroceramia westwoodii at Wikimedia Commons

Illustrations

Worked examples

Example 1 — a first encounter with Miroceramia

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

In research: Miroceramia 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 Miroceramia 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: Miroceramia is common in secondary-school and first-year university syllabi. It links to neighbouring topics Monotypic insect genera, Phasmatodea, so understanding it makes those chapters shorter.
In everyday life: Look for Miroceramia 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.

How to study Miroceramia in 20 minutes

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

Frequently asked questions

What is Miroceramia in simple terms?

Miroceramia is a monotypic genus of stick insects, containing Miroceramia westwoodii as the only described species. It is the only fully winged one of the subfamily Obriminae.

Why does Miroceramia 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 Miroceramia?

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 Miroceramia.