Dioscorea laxiflora Mart. ex Griseb

Maia, Valéria Cid & Mascarenhas, Bernardo, 2023, Insect galls of Parque Nacional da Serra dos Órgãos (Rio de Janeiro State, Southeastern Brazil), Papéis Avulsos de Zoologia 63, pp. 1-56 : 19

Dioscorea laxiflora Mart. ex Griseb (n = 1)

Gall: on leaf petiole and stem, fusiform, green, glabrous, one-chambered ( Fig. 8I ). Gall-inducer: Cecidomyiidae . Parasitoids: Hymenoptera . Trail: Guapimirim: Circular (25.IV.2022), AraÇari Camping (25.IV.2022).

First record of gall on this plant species.

Maia et al. (2008), Maia & Mascarenhas (2017) and Goetz et al. (2018) reported galls on other species of Dioscorea L. in the Parque Nacional do Itatiaia and RS, respectively.

Figures

Figure 8. Insect galls of Parque Nacional da Serra dos Órgãos (RJ, Brazil): (A-B) On Bignoniaceae: (A) On Bignoniaceae sp. 1, leaf gall, (B) On Bignoniaceae sp. 2, stem and leaf petiole gall, (C) On Varronia sp. (Boraginaceae), bud gall, (D) On Rhipsalis olivifera N.P. Taylor & Zappi (Cactaceae), leaf gall, (E) On Celastraceae sp., leaf gall, (F-G) On Clusiaceae: (F) On Clusia lanceolata Camb., leaf gall, (G) On Tovomitopsis paniculata (Spreng.) Planch & Triana, leaf gall, (H) On Cayaponia sp. 2 (Curcubitaceae), leaf petiole, (I) On Dioscorea laxiflora Mart. ex Griseb. (Dioscoreaceae), leaf petiole, (J) On Polybotrya sp. (Dryopteridaceae), leaf petiole, (K-L) On Euphorbiaceae:(K) On Croton echinocarpus Müll. Arg.,stem gall,(L) On Croton floribundus Spreng.,leaf gall.