Publication
Gonzon A. T. & Bartlett C. R. 2007 - Systematics of Hadropygos n.g., Metadelphax Wagner and New World Toya Distant (Hemiptera: Delphacidae). Transactions of the American Entomological Society 133(3 & 4): 205-277.
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| Delphacodes axonopi Fennah, 1945 synonym of Toya nigra (Crawford, 1914) | |||
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| Toya idonea (Beamer, 1947) new combination of Delphacodes idonea Beamer, 1947 | |||
| Toya nigra (Crawford, 1914) new combination of Delphacodes nigra (Crawford, 1914) | |||
| Metadelphax wetmorei (Muir & Giffard, 1924) new combination of Delphacodes wetmorei Muir & Giffard, 1924 | |||
| Toya bridwelli (Muir, 1920) new combination of Metadelphax bridwelli (Muir, 1920) | |||
| Metadelphax pero (Fennah, 1971) new combination of Syndelphax pero Fennah, 1971 | |||
| Metadelphax argentinensis (Muir, 1929) new combination of Toya argentinensis (Muir, 1929) | |||
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| Meadelphax Wagner, 1963 wrong spelling of Metadelphax Wagner, 1963 | |||
| Toya porpinqua (Fieber, 1866) wrong spelling of Toya propinqua (Fieber, 1866) | |||
| Toya propincua (Fieber, 1866) wrong spelling of Toya propinqua (Fieber, 1866) | |||
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| Hadropygos rhombos Gonzon & Bartlett, 2007 | |||
| Metadelphax argentinensis (Muir, 1929) | |||
| Metadelphax dentata Gonzon & Bartlett, 2008 | |||
| Metadelphax propinquus (Fieber, 1866) | |||
| Metadelphax wetmorei (Muir & Giffard, 1924) | |||
| Toya attenuata Distant, 1906 | |||
| Toya boxi (Muir, 1926) | |||
| Toya dietrichi Gonzon & Bartlett, 2008 | |||
| Toya goliai Gonzon & Bartlett, 2008 | |||
| Toya idonea (Beamer, 1947) | |||
| Toya nigra (Crawford, 1914) | |||
| Toya recurva Gonzon & Bartlett, 2008 | |||
| Toya venilia (Fennah, 1959) | |||
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| Toya attenutata Distant, 1906 wrong spelling of Toya attenuata Distant, 1906 | |||