The leaf-beetle genus Platypria Guérin-Méneville, 1840 comprises two subgenera and 34 species (Chrysomelidae: Cassidinae: Hispini). Host plants are documented for eight species and indicate mostly perennial species of Fabaceae and Rhamnaceae. Larvae and pupae have been documented for two Platypria species. This paper presents novel natural history data, based on a field study of populations of Platypria (Platypria) hystrix (Fabricius, 1798) on Erythrina stricta Roxb. and Pueraria phaseoloides (Roxb.) Benth. in Kerala, south India and on Erythrina variegata L., Pueraria montana var. lobata (Willd.) Maes. & S. Almeida and Mucuna pruriens (L) DC in Assam, northeast India. Three new Fabaceae hosts are reported for P. (P.) hystrix. Brief notes and new host records, based on field observations, are also provided for the other three species of Platypria in India – P. (P.) chiroptera Gestro, 1899, P. (P.) echidna Guérin-Méneville, 1840 and P. (P.) erinaceus (Fabricius, 1801). Platypria females slit the leaf to lay a single egg which is covered with secretions that harden as an ootheca, the egg covering in Cassidinaes. l. There are five larval stages, each with the typical ‘hispine’ mining form and behaviour – a flattened cream-coloured body, chitinised head capsule and claws, and feeding on mesophyll and leaving irregular blotch mines on the host leaves. Pupation occurs in an independent pupal mine and lasts about a week. These observations suggest new potential phylogenetic character hypotheses that can stimulate better data collection on leaf-mining Cassidinae and help resolve evolutionary patterns amongst these basal mining genera.

中文翻译：

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扁豆属 (Platypria) hystrix (Fabricius, 1798) 在豆科寄主植物上的自然历史，以及印度其他扁桃属植物的注释（Chrysomelidae、Cassidinae、Hispini）

叶甲虫属 Platypria Guérin-Méneville，1840 年包括两个亚属和 34 个种（叶甲科：Cassidinae：Hispini）。记录了八种寄主植物，主要​​是豆科和鼠李科的多年生植物。已记录了两种 Platypria 物种的幼虫和蛹。本文基于对 Erythrina stricta Roxb 上的 Platypria (Platypria) hystrix (Fabricius, 1798) 种群的实地研究，提出了新的自然历史数据。和野葛根 (Roxb.) Benth。在印度南部的喀拉拉邦和 Erythrina variegata L.，Pueraria montana var。lobata (Willd.) Maes。& S. Almeida 和 Mucuna pruriens (L) DC 位于印度东北部阿萨姆邦。三个新的豆科植物宿主被报道为 P. (P.) hystrix。简短的笔记和新的宿主记录，基于实地观察，还为印度的其他三种扁嘴鱼提供了资料——P. (P.) 翼手目 Gestro，1899 年，P. (P.) 针鼹 Guérin-Méneville，1840 年和 P. (P.) erinaceus (Fabricius, 1801)。Platypria 雌性切开叶子产下一个卵，卵上覆盖着硬化成卵囊的分泌物，卵覆盖在 Cassidinaes 中。湖。有五个幼虫阶段，每个阶段都有典型的“hispine”挖掘形式和行为——扁平的奶油色身体、几丁质化的头囊和爪子，以叶肉为食并在寄主叶子上留下不规则的斑点矿。化蛹发生在一个独立的蛹矿中，持续约一周。这些观察结果提出了新的潜在系统发育特征假设，可以促进更好地收集采叶叶蝉亚科的数据，并有助于解决这些基础采叶属之间的进化模式。