dcsimg

Diagnostic characters

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Frontoclypeus strongly convex, produced anteroventrally. Distance from eye to base of forewing less than half eye width. Pronotum weakly to strongly produced anterodorsally, not extending posteriorly over scutellum. Scutellum fully visible, convex basally, keeled posteriorly, not elongate. Forewings with veins R, M and Cu diverging from one point or M briefly united with R or Cu. Prothoracic trochanter and femur not fused. Male abdominal segment IX without lateral lobes and lateral plates. Female pygofer not strongly produced posteroventrally. Nymph with abdominal segment IX with ventromedial lobes free (Melizoderes) or fused (Llanquihea), anal opening ventral.
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Discussion

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This monotypic family includes only the nominotypical subfamily Melizoderinae and tribe Melizoderini.
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Distribution

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Neotropical region: Chile and Argentina.
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Taxon images

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Melizoderidae
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Melizoderidae

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Melizoderidae is a family of tree-hoppers restricted to South America with only two genera, Melizoderes and Llanquihuea. The nymphs of melizoderids have the tergum of the 9th segment concealing the anal opening from above. The frontoclypeus (forehead) is convex and extended forward and below. The pronotum extends forward and above but not backward over the scutellum which is keeled posteriorly.[1]

References

  1. ^ Deitz, Lewis L.; Dietrich, Christopher H. (1993). "Superfamily Membracoidea (Homoptera: Auchenorrhyncha). I. Introduction and revised classification with new family-group taxa". Systematic Entomology. 18 (4): 287–296. doi:10.1111/j.1365-3113.1993.tb00667.x.

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Melizoderidae: Brief Summary

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Melizoderidae is a family of tree-hoppers restricted to South America with only two genera, Melizoderes and Llanquihuea. The nymphs of melizoderids have the tergum of the 9th segment concealing the anal opening from above. The frontoclypeus (forehead) is convex and extended forward and below. The pronotum extends forward and above but not backward over the scutellum which is keeled posteriorly.

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Melizoderidae ( Italian )

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Melizoderidae è una piccola famiglia di insetti appartenente all'ordine dei Rincoti Omotteri, superfamiglia dei Membracoidea.

Descrizione

Gli adulti sono morfologicamente affini alla più nota e diffusa famiglia dei Membracidae, dalla maggior parte dei quali si distinguono per il mancato sviluppo ipertelico del pronoto.

Il capo è metagnato, largo, provvisto di due ocelli e due occhi composti e con regione fronto-clipeale marcatamente convessa. Nel torace manca l'espansione posteriore del pronoto sopra lo scutello, che risulta perciò visibile alla vista dorsale. Al pari dei Membracidae e degli Aetalionidae, le pleure del mesotorace presentano l'episterno indiviso e provvisto di un processo dorsale simile ad un dente.

Le ali anteriori sono differenziate in tegmine, ripiegate a tetto sull'addome in fase di riposo. La vena media è fusa alla base con la radio e ben distinta dalla cubito, oppure ha un decorso indipendente, separato sia dalla radio sia dalla cubito. Le zampe posteriori sono di tipo saltatorio, presentano le coxe allungate e trasverse e le tibie prive della fila di setole spiniformi tipica dei Cicadellidae. Nelle zampe anteriori il trocantere e il femore non sono fusi, carattere che li contraddistingue dagli Aetalionidae.

Sistematica

La famiglia dei Melizoderidae è presente esclusivamente nel Cile. È composta da 2 generi e comprende solo 8 specie[1].

Note

Bibliografia

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Melizoderidae: Brief Summary ( Italian )

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Melizoderidae è una piccola famiglia di insetti appartenente all'ordine dei Rincoti Omotteri, superfamiglia dei Membracoidea.

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Melizoderidae ( Norwegian )

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Melizoderidae er en familie av sikadene (Auchenorrhyncha). De lever av plantesaft som de suger ut av bladnerver eller stenglen på planter. Plantesugere har ufullstendig forvandling. Melizoderidae er bare kjent fra Chile, der det er funnet åtte arter.

Utseende

De ligner på hornsikader (Membracidae) mne skiller seg fra disse ved at de har noen furer (parapsidalsuturer) på sidene av ryggen (mesonotum).

Levevis

Systematisk inndeling

Treliste

Kilder

Eksterne lenker

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Melizoderidae: Brief Summary ( Norwegian )

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Melizoderidae er en familie av sikadene (Auchenorrhyncha). De lever av plantesaft som de suger ut av bladnerver eller stenglen på planter. Plantesugere har ufullstendig forvandling. Melizoderidae er bare kjent fra Chile, der det er funnet åtte arter.

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Melizoderidae ( Russian )

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Латинское название Melizoderidae

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NCBI 1225616

Melizoderidae (лат.) — семейство равнокрылых насекомых. Эндемики Южной Америки[1].

Распространение

Южная Америка: Аргентина и Чили[1].

Описание

Равнокрылые насекомые, сосущие соки растений. Длина тела 4—6 мм. Фронтоклипеус сильно выпуклый. 9-й тергит нимф полностью покрывает анальное отверстие, которое поэтому сверху незаметно. Взрослые особи морфологически похожи на семейство Membracidae, отличаются от них тем, что имеют складки (парапсидальные бороздки) по бокам сзади среднеспинки.[1].

Систематика

2 рода, 8 видов. [2]

Примечания

  1. 1 2 3 Deitz Lewis L., Christopher H. Dietrich. 1993: Superfamily Membracoidea (Homoptera: Auchenorrhyncha). I. Introduction and revised classification with new family-group taxa. Systematic Entomology. Volume 18, Issue 4, pages 287—296, October 1993.
  2. Mario Elgueta (2006).
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Melizoderidae: Brief Summary ( Russian )

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Melizoderidae (лат.) — семейство равнокрылых насекомых. Эндемики Южной Америки.

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