scholarly journals Life cycle and morphometric analysis of nymphs of Cynodonmiris corpoicanus Ferreira & Barreto, 2013 (Hemiptera: Miridae)

2021 ◽  
Vol 47 (4) ◽  
pp. 677-688
Author(s):  
Paulo Sergio F. Ferreira ◽  
Nancy Barreto-Triana ◽  
Pablo Andrés Osorio-Mejía ◽  
Fagner de Souza ◽  
Luciano Santana Fiuza Ferreira
Keyword(s):  
Principal Component Analysis ◽  
Life Cycle ◽  
Morphometric Analysis ◽  
Avena Sativa ◽  
Principal Component ◽  
Component Analysis ◽  
Morphometric Study ◽  
Diagnostic Characters ◽  
High Plateau

The bug Cynodonmiris corpoicanus inhabit the Cundiboyacense High Plateau in Colombia feeding on grasses (Poaceae). The authors carry out their life cycle in greenhouse and characterize the damage on oat (Avena sativa) leaves. The duration egg – adult last 49.3 days and undergo five nymphal stages. The morphometric study was conducted by principal component analysis (PCA) and 2.03 PAST software. This method let to determine measures for nymphal stages separation, furthermore we consider coloration, morphology and morphometric description. A key for nymphal stages determination was developed by morphometric and morphology diagnostic characters. Also, we include illustrations of the C. corpoicanus nymphal stages.

A taxonomic study of Melanelixia fuliginosa in Europe

2011 ◽  
Vol 43 (2) ◽  
pp. 89-97 ◽  
Author(s):  
Ulf ARUP ◽  
Emma SANDLER BERLIN
Keyword(s):  
Principal Component Analysis ◽  
Molecular Analysis ◽  
Morphometric Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Bootstrap Support ◽  
Taxonomic Study ◽  
Separate Species ◽  
Long Time

AbstractFor a long time it has been discussed as to whether Melanelixia fuliginosa comprises one or two species: one darker, mainly saxicolous, and one lighter, mainly corticolous. To settle the question, a morphometric and a molecular analysis were carried out and analyzed using a principal component analysis (PCA). The morphometric analysis indicates a differentiation in several characters between material previously recognized as subspecies fuliginosa and glabratula, but also a considerable overlap in some of them. The molecular analysis of the nrITS DNA gene reveals a clear division of the taxa. Specimens belonging to Melanelia fuliginosa fall out in two different clades, which have good bootstrap support, corresponding to the subspecies fuliginosa and glabratula. Accordingly, we propose that the subspecies should be acknowledged as separate species, Melanelixia fuliginosa (Fr. ex Duby) O. Blanco et al. and Melanelixia glabratula (Lamy) Sandler & Arup.

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