Lestodiplosini
Genus Guides
5Lestodiplosini is a tribe of predatory gall midges within the Cecidomyiidae. Members of this tribe are distinguished by their predatory lifestyle, feeding on other small arthropods rather than inducing plant galls. The tribe contains the Lestodiplosis and related . These are part of the Cecidomyiinae, which includes both gall-forming and predatory lineages. Lestodiplosini have been documented in multiple regions, with iNaturalist observations indicating a broad but patchy distribution.
Pronunciation
How to pronounce Lestodiplosini: /lɛstoʊˌdɪploʊˈsinaɪ/
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Identification
Lestodiplosini can be distinguished from gall-forming cecidomyiids by examining larval and . Predatory larvae possess well-developed, sclerotized capsules and prominent adapted for capturing prey, in contrast to the often reduced mouthparts of phytophagous gall midge larvae. identification to tribe level requires examination of genitalic structures and wing venation patterns characteristic of Cecidomyiinae, combined with association of larvae with predatory rather than gall-forming habits.
Distribution
Documented from multiple continents based on iNaturalist observations and taxonomic records. Specific range boundaries are poorly defined due to limited sampling and taxonomic study.
Diet
Predatory. Larvae feed on other small arthropods, including mites, aphids, and other cecidomyiid larvae. This distinguishes the tribe from the predominantly phytophagous or mycophagous habits of most Cecidomyiidae.
Behavior
Larvae are active , hunting prey within soil, leaf litter, or other microhabitats rather than remaining sedentary within plant galls. This mobile predatory represents a significant ecological shift from the ancestral gall-forming habit of the .
Ecological Role
Predatory cecidomyiids in this tribe function as agents, potentially regulating of pest mites and other small arthropods. Their role in natural remains understudied.
Human Relevance
Some have been investigated for potential use in of agricultural pests, particularly mites. However, practical applications are limited by difficulties in mass rearing and identification.
Similar Taxa
- CecidomyiiniA tribe of gall-forming cecidomyiids; distinguished by phytophagous larval habits and association with plant gall structures rather than predatory .
- AphidoletiniAnother tribe containing predatory cecidomyiids; separation requires detailed morphological examination of genitalia and larval mandibular structure.
More Details
Taxonomic History
The recognition of Lestodiplosini as a distinct tribe reflects the diversification of feeding habits within Cecidomyiidae. The predatory habit has evolved independently multiple times in the , complicating tribal classifications based solely on .