A cladistic analysis of Inaequalium (Coscarón & Wygodzinsky, 1984), with information on geographical distribution (Diptera: Simuliidae).
The black flies of the genus Inaequalium present a Neotropical distribution, with Panama at the northern limit, and the Argentinian pampas at the southern, but do not occur in the Central Amazon. This study offers a cladistic analysis establishing a hypothesis of relationships between the species of Inaequalium. A total of 37 characters have been considered in order to establish the hypothetic phylogenetic relationships. Cerqueirellum (Py-Daniel, 1983) was considered as outgroup. Data were analyzed using Henning 86 version 1.5. Wich the i.e.* command and implicit enumeration a unique possible cladogram was obtained in Inaequalium with 52 steps, and a CI of 0.76 and RI of 0.81. Two well-defined clades was obtained in the resulting cladogram, the "botulibranchium" species-group, includes I. travassosi, I. souzalopesi, I. botulibranchium and I. petropoliense, and the "inaequale" species-group, includes I. rappae, I. nahimi, I. inaequale, I. leopoldense, I. subnigrum, I. diversibranchium, I. mariavulcanoae, I. nogueirai, I. beaupertuyi, I. clavibranchium and I. subclavibranchium.
Strieder
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MN
Laboratório de Entomologia, Centro de Ciências da Saúde, Universidade do Vale do Rio dos Sinos, Av. Unisinos 950, 93001-970 São Leopoldo, RS, Brasil. strieder@cirrus.unisinos.br
Py-Daniel
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V
D000818:Animals; D002489:Central America; D005260:Female; D008297:Male; D010802:Phylogeny; D011156:Population Density; D012843:Simuliidae / Q000033:anatomy & histology / Q000145:classification*; D013020:South America