Oviposition on host plants by a tropical forest grasshopper (Microtylopteryx hebardi: Acrididae)
Article first published online: 14 MAR 2008
Volume 14, Issue 2, pages 141–148, May 1989
How to Cite
BRAKER, H. E. (1989), Oviposition on host plants by a tropical forest grasshopper (Microtylopteryx hebardi: Acrididae). Ecological Entomology, 14: 141–148. doi: 10.1111/j.1365-2311.1989.tb00764.x
- Issue published online: 14 MAR 2008
- Article first published online: 14 MAR 2008
- Life history;
- host plant;
- oviposition behaviour;
- Microtylopteryx hebardi;
Abstract. 1. The tropical forest grasshopper Microtylopteryx hebardi Rehn (Orthoptera, Acrididae, Ommatolampinae) oviposits inside leaves or stems of its host plants. This is the first known instance of oviposition inside living plant tissue (rather than in the ground, on top of leaves, or in detritus) for a tropical forest acridid.
2. In understorey secondary forest at La Selva, Costa Rica, M.hebardi females fed on fifteen species of host plants, but oviposited in only four of these.
3. In laboratory choice tests, females showed selectivity for oviposition host plants similar to that inferred from field observations.
4. Plant volume was a better predictor of the number of eggs laid per stem than variables that indicated leaf or stem characteristics of individual plants.
5. Unlike the ovipositor of acridids laying eggs in the ground, that of M.hebardi is equipped with toothed, sclerotized edges, probably used to bore into plant tissue.
6. Endophytic oviposition in M.hebardi may be related to finding host plants in a habitat that is complex, heterogeneous, and rich in plant species.