The preference for host plant species, individuals within a species, or traits of host plants, can influence the performance, distribution and abundance of insect herbivores and many trends have been reported worldwide. Not surprisingly, several hypotheses have been proposed to understand the described patterns of attack by herbivorous insects at several ecological scales. The "plant architecture hypothesis" states that the physical structure of the aerial parts of the host plant influences the community structure of herbivorous insects (Lawton 1983;Strong et al. 1984; Araújo et al. 2006). The plant architecture Relationships between host plant architecture and gall abundance and survival

Asphondylia gochnatiae Maia, a new species of Cecidomyiidae (Diptera) that induces leaf galls on Gochnatia polymorpha (Less.) Cabrera (Asteraceae) is described and illustrated (larva, pupa, male, female and gall) based on material from Minas Gerais, Brazil. Data on the gall biology is also provided.

A new species of Bruggmanniella (Diptera, Cecidomyiidae, Asphondyliini) associated with Doliocarpus dentatus (Dilleniaceae) in Brazil ABStRACt. A new species of Bruggmanniella (Diptera, Cecidomyiidae, Asphondyliini) associated with Doliocarpus dentatus (Dilleniaceae) in Brazil. Bruggmanniella doliocarpi, a new galling species associated with Doliocarpus dentatus (Dilleniaceae) is described and illustrated (male, female, pupa, larva and gall) based on material from Minas Gerais, Brazil. the new species is compared to the other known Neotropical species. This is the first report of Bruggmanniella for Minas Gerais and in association with Dilleniaceae.KEyWORDS. Brazilian savanna; gall midge; Neotropical; taxonomy.RESUMO. Uma nova espécie de Bruggmanniella (Diptera, Cecidomyiidae, Asphondyliini) associada a Doliocarpus dentatus (Dilleniaceae) no Brasil. Bruggmanniella doliocarpi, uma nova espécie galhadora associada com Doliocarpus dentatus (Dilleniaceae) é descrita e ilustrada (macho, fêmea, pupa, larva e galha) com base em material coletado em Minas Gerais, Brasil. A nova espécie é comparada com as outras espécies neotropicais conhecidas. Esse é o primeiro registro de Bruggmanniella para Minas Gerais e em Dilleniaceae.PALAVRAS-CHAVE. Cerrado; mosquito galhador; Neotropical; taxonomia.Bruggmanniella tavares, 1909 is known from ten galling species, seven Neotropical: B. braziliensis tavares, 1909, B.

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br (A.R. Rodrigues). A B S T R A C TThree new species, Bruggmanniella miconiae sp. nov., B. notatae sp. nov. and B. sideroxyli sp. nov., are described and illustrated. The new species are associated, respectively, with Miconia theaezans (Bonpl.) Cogn (Melastomataceae), Ocotea notata (Nees and Mart.) Mez (Lauraceae) and Sideroxylon obtusifolium (Roem. and Schult.) T. D. Penn. (Sapotaceae), respectively. The first one was collected in Dores do Indaiá city, Minas Gerais, Brazil; and the two others were collected in Mangaratiba city, Rio de Janeiro, Brazil. An illustrated key to the Bruggmanniella species is provided.