Stem borer (Coleoptera: Curculionidae) in Sanicula [0488]
Order | Coleoptera |
---|---|
Family | Curculionidae[M,L,A] |
Lower taxon | undetermined |
No. spp. involved | One confirmed [1-C] but unsure if the two larvae figured here are conspecific |
Feeding mode | Stem borer |
Host plant | Sanicula sp. (Apiaceae) |
Two examples of beetle borer larvae in Sanicula were located in the current study, one in June 2022 and the second in July 2023. Both larvae began their tunneling in the uppermost portion of the stem and proceeded downward from there. The 2022 larva had already been killed by a parasitoid when the author located it, and thus had not succeeded in tunneling very far down the stem, although its activity did result in the stem tip dying back. The 2023 larva was located due to the conspicuous wilting of the host plant, and when found it had already completed its tunneling in the inflorescence stem branch and from there had entered the main stem. This larva was successfully reared to adulthood.
Specimen data for images
Coll. 06/09/22, field photo same day (01), additional photos on 06/10/22 (02-07); coll. 07/07/23, field photo same day (08), larva and damage photos same day (09-18, 23), larva still alive in stem on 07/26/23 (no photos), teneral adult em. 08/04/23 (no photos), hardened and darkened adult photographed on 08/06/23 (19-22).
References
[none]
Page created 10/01/23. Last update: 11/18/24