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Table 2 Sister groups differing in species richness. Sister groups were selected on the basis of differences in species richness. Richness 1 is the group with the highest richness and HD 1 is the corresponding host diversity index for that group. HD 2 shows the host diversity index for the group with the lower species richness (Richness 2).

From: Diversity begets diversity: host expansions and the diversification of plant-feeding insects

Sister pairing Richness 1 Richness 2 HD 1 HD 2
Libythea-Libytheana 7 4 2 1
Anetia-Lycorea 5 3 1 9
Parantica-Ideopsis 39 8 2 1
Charaxes-Polyura 189 21 247 9
Actinote/Acraea-Pardopsis 255 1 143 1
Dione-Agraulis 3 2 1 1
Cupha-Vagrans 8 1 4 4
Cymothoe-Harma 69 1 6 2
Cyrestis-Chersonesia 18 6 2 1
Eunica-Sevenia 40 15 6 1
Colobura-Tigrida 2 1 2 1
Polygonia-Kaniska 13 1 35 1
Vanessa-Hypanartia 19 14 243 1
Symbrenthia-Mynes 11 10 1 1
Hypolimnas-Precis 23 15 40 1
Protogoniomorpha-Yoma 5 2 1 4
Oleria-Hyposcada 50 8 1 1
Heliconius/Laparus/Neruda-Eueides 44 12 1 2
Argynnis s.l.-Brenthis 41 4 4 1
Hamadryas-Panacea/Batesia 20 4 2 1
Anthanassa/Telenassa/Eresia/Castilia-Tegosa 57 14 9 1
Chlosyne-Microtia 33 5 8 4
Kallima-Catacroptera/Mallika 9 2 1 1
Rest of Brassolini-Bia 92 2 55 1
Positive contrasts 24 (100%)   16 (67%)