Lestodiplosis
Kieffer, 1894
Lestodiplosis is a of gall midges in the Cecidomyiidae. in this genus are predatory rather than plant-feeding, with at least one documented species, Lestodiplosis xylodiplosuga, preying on other gall midge larvae that inhabit freshly cut wood. These tiny flies are part of a complex associated with xylophilous (wood-dwelling) cecidomyiids in Europe and potentially North America.
Pronunciation
How to pronounce Lestodiplosis: //ˌlɛstoʊdɪˈploʊsɪs//
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Identification
Lestodiplosis are minute flies, typically around 1 mm in length, consistent with other cecidomyiid . Distinguishing Lestodiplosis from other cecidomyiid genera requires examination of morphological characters such as , wing venation, and genitalia under high magnification. The genus is not readily identifiable from field photographs alone.
Habitat
Associated with freshly cut wood and xylem vessels of recently damaged or felled trees, particularly oak. The is defined by the presence of wood-boring or wood-inhabiting gall midges that serve as prey.
Distribution
Documented from Europe (Denmark, Norway, Sweden) based on GBIF records. Ecologically similar involving Lestodiplosis have been observed in North America (Kansas, USA), though specific identifications remain uncertain.
Seasonality
Activity coincides with periods of tree damage and fresh wood exposure. In the documented Kansas observation, were present in late June following branch breakage and subsequent sawing of oak limbs.
Diet
Predatory. Lestodiplosis xylodiplosuga has been documented feeding on larvae of Xylodiplosis gall midges that inhabit xylem vessels of fresh-cut wood.
Host Associations
- Xylodiplosis - preyLestodiplosis xylodiplosuga preys on Xylodiplosis larvae in wood; specific not confirmed in North America
Behavior
Females oviposit in or near galleries of prey gall midges in fresh-cut wood. Larvae are predatory on other cecidomyiid larvae. The complete has been described for L. xylodiplosuga in European studies, including detailed of developmental stages.
Ecological Role
within the of organisms inhabiting freshly cut wood. Acts as a control agent for xylophilous gall midges. Part of a trophic web that includes (Platygastridae), , and mites also associated with wood-dwelling cecidomyiids.
Similar Taxa
- XylodiplosisBoth inhabit freshly cut wood and are found in the same ecological context; Xylodiplosis are phytophagous or gall midges, whereas Lestodiplosis species are predatory on them
- LedomyiaAnother cecidomyiid associated with freshly cut wood; Ledomyia are not predatory and occupy a different trophic position
More Details
Research Origin
Most research on Lestodiplosis, including the detailed of L. xylodiplosuga, originates from European studies. The applicability of these findings to North American is uncertain.