Stem borer (Diptera: Dolichopodidae) in Agrostis
| Record no.: | 0650 |
|---|---|
| Feeding guild: | Stem borer |
| Taxonomy: | Diptera: Dolichopodidae: Thrypticus sp. |
| Stages observed: | trace, larva |
| Distribution observed: | IA |
| Hosts in Agrostis: | undetermined A. sp. (bentgrass) |
I found a deceased larva in a senesced culm of the host in winter. Its labrum (a part of the head skeleton) was somewhat curved or hooked in shape.
For information and photos on this insect, see Host associations, feeding traces, larval morphology, and other observations on the life histories of culm borer flies in the genus Thrypticus (Diptera: Dolichopodidae) from the Upper Midwest, USA.
Page created: February 9, 2026. Last update: none