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| Morrone, J.J.; Coscarón, M. del C.. |
| The assassin bug genus Rasahus Amyot & Serville (Heteroptera: Reduviidae: Peiratinae) comprises 26 Neotropical species. A cladistic analysis of the genus was carried out using 63 characters from external morphology, body vestiture, and male and female genitalia, with the species considered as terminal taxa. The analysis yielded 149 equally parsimonious cladograms, each with 206 steps, CI = 0.35, and RI = 0.60; the successive weighting procedure resulted in eight cladograms (CI = 0.79 and RI = 0.91). In the strict consensus cladogram, two major clades are delimited: one comprising the species R. rufiventris, R. hamatus, R. arcitenens, R. arcuiger, R. amapaensis, R. thoracicus, R. biguttatus, R. argentinensis, R. limai, R. grandis, and R. angulatus; and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cladistics; Biogeography; Rasahus; Heteroptera; 42.75. |
| Ano: 1998 |
URL: http://www.repository.naturalis.nl/record/215077 |
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| Morrone, J.J.; Coscarón, M. del C. |
| Based on distributional data of 40 species of Peiratinae, historical relationships of five Amazonian areas (Paranaense, Atlantic, Pacific, Amazonian, and Cerrado) and two Chacoan areas (Chaco and Caatinga), were investigated through a parsimony analysis of endemicity (PAE). The resulting area cladogram indicates the following sequence of area fragmentation: (Cerrado (Caatinga (Chaco, ((Pacific, Amazonian), (Atlantic, Paranaense))))). It is proposed that these results reflect the gradual development of a diagonal of open formations (Chaco-Cerrado-Caatinga), which separated the former continuous tropical forest into two parts, namely, northwestern (Pacific plus Amazonian) and southeastern (Paranaense plus Atlantic). |
| Tipo: Article / Letter to the editor |
Palavras-chave: Heteroptera; Reduviidae; Peiratinae; Distribution; Patterns; Parsimony analysis; Endemicity; 42.75. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/318686 |
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