Illustrated and annotated checklist of Brazilian gall morphotypes

Area of Science:

• Zoology
• Botany
• Ecology

Background:

• Galling herbivores induce plant galls, representing a significant component of biodiversity.
• Brazil harbors a rich diversity of galling insects and their host plants, yet standardized inventories are lacking.

Purpose of the Study:

• To compile and standardize the classification of gall morphotypes in Brazil.
• To propose criteria for consistent data collection in future gall inventories.

Main Methods:

• Analysis of nine existing inventories on galling herbivores in Brazil.
• Development of a standardized checklist of seven gall morphotypes and five additional shapes.
• Proposal of data collection guidelines for gall inventories.

Main Results:

• Cataloged 806 gall systems from 443 host-plant species across 74 plant families in Brazil.
• Defined seven standardized gall morphotypes and five additional shapes.
• Established criteria for recording host-plant species, herbivore identity, gall characteristics, and ecological associations.

Conclusions:

• Standardized morphotypes and data collection protocols are crucial for comparable biodiversity assessments of galling herbivores.
• This work provides a foundational framework for future research on gall systems in Brazil.