A closer look at intraspecific variation of Cerataphis brasiliensis (Hempel) (Hemiptera: Hormaphididae)
The aim of our study was to characterize Cerataphis brasiliensis Hempel, an aphid of native palm tree of tropical savannas (cerrado), and to record intraspecific variation. We found two parthenogenetic forms of apterous viviparae females of C. brasiliensis. We differentiate the two forms through mea...
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Veröffentlicht in: | Neotropical entomology 2008-04, Vol.37 (2), p.137-142 |
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Zusammenfassung: | The aim of our study was to characterize Cerataphis brasiliensis Hempel, an aphid of native palm tree of tropical savannas (cerrado), and to record intraspecific variation. We found two parthenogenetic forms of apterous viviparae females of C. brasiliensis. We differentiate the two forms through measurable and qualitative characters: (i) length of cephalic horns, (ii) number of antennal segments, (iii) presence or absence of wax glands, (iv) location of siphunculi.
O objetivo desse estudo foi caracterizar Cerataphis brasiliensis Hempel, um afídeo de palmeiras nativas de savanas tropicais (cerrado), e registrar a variação intra-específica. Foram encontradas duas formas de fêmeas partenogenéticas viviparas ápteras de C. brasiliensis, diferenciadas por caracteres mensuráveis e qualitativos: (i) comprimento dos chifres cefálicos, (ii) número de segmentos da antena, (iii) presença ou ausência de glândulas de cera, (iv) localização do sifúnculo. |
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ISSN: | 1519-566X 1678-8052 1678-8052 |
DOI: | 10.1590/S1519-566X2008000200005 |