Morphological determination of the larval instars of Eupeodes americanus (Diptera: Syrphidae)

Fauteux, Arlette; Gonzalez, Noémie; Soares, António O.; Lucas, Éric

http://hdl.handle.net/10400.3/6540

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Abstract(s)

In North America, the potential of the American hoverfly Eupeodes americanus (Wiedemann, 1830) (Diptera: Syrphidae) as a biocontrol agent has been demonstrated, particularly against the foxglove aphid Aulacorthum solani Kaltenbach, 1843 (Hemiptera: Aphididae). Since no information is available to distinguish the larval instars of this species, the present study used the semi-continuous observation (time-lapse photography and stereo microscope) of the three larval stages to build a table of morphological traits and a dichotomic key for discriminating the larval instars by observation under stereo microscope. Discriminating traits are black hairs at first instar and fused posterior breathing tubes at third instar.

Keywords

Black Hairs Moult Posterior Breathing Tubes Time-lapse Photography Biocontrol

URI

http://hdl.handle.net/10400.3/6540

Citation

Fauteux, A., Gonzalez, N., Soares, A.O. & Lucas, E. (2022). Morphological determination of the larval instars of Eupeodes americanus (Diptera: Syrphidae). "Phytoprotection", 102(1): 30-34. DOI:10.7202/1093947ar.