Hexacola
Förster, 1869
Species Guides
1Hexacola is a of small in the Figitidae, Eucoilinae. These wasps are known primarily as parasitoids of dipteran , particularly shore flies (Ephydridae) and eye gnats (Chloropidae). The genus includes with both sexual and parthenogenetic , and some have been studied for potential applications.
Pronunciation
How to pronounce Hexacola: //ˈhɛksəˌkoʊlə//
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Identification
Hexacola are small eucoiline . Diagnostic characters include features of the scutellum, wing venation, and antennal structure; specific identification requires examination of these morphological details. Some species are parthenogenetic, which may aid in distinguishing them from related sexual in field .
Habitat
Aquatic and semi-aquatic environments; associated with that develop in wet or moist substrates. Specific include duckweed beds (Lemna) and other wetland situations where shore flies occur, as well as habitats supporting eye gnats (Hippelates).
Distribution
Argentina (Berisso, Buenos Aires); Canada; Sweden; Norway. Distribution appears to be widespread but patchily recorded, reflecting both actual range and collection effort focused on economically important .
Host Associations
- Lemnaphila neotropica - Shore fly (Diptera: Ephydridae) that mines duckweed; Hexacola lemnaphilae reared from pupae
- Hippelates eye gnats - Diptera: Chloropidae; includes H. collusor and related
- Scatella stagnalis - Shore fly (Diptera: Ephydridae)
Life Cycle
Larval-pupal . Development includes (2 days at 26°C), three larval instars (2, 3, and 4 days respectively at 26°C), and pupa (6–7 days at 26°C). stages develop within the .
Behavior
Parthenogenetic documented in some (thelytoky, producing female offspring without mating). Parasitization success varies with instar, conditions, and host exposure.
Ecological Role
of dipteran flies in aquatic and semi-aquatic . Potential agent for duckweed-mining shore flies and eye gnats of agricultural or medical importance.
Human Relevance
Studied for potential against pest flies. Eye gnats (Hippelates) are nuisance pests and ; shore flies that mine duckweed can affect aquatic systems. The parthenogenetic of some Hexacola may facilitate mass rearing for biological control programs.
Similar Taxa
- Other Eucoilinae generaSimilar small size and ; distinguished by scutellar , wing venation, and antennal structure
- Other FigitidaeLarger or differently structured scutellum; Hexacola typically has reduced wing venation characteristic of eucoilines
Sources and further reading
- BugGuide
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- Parthenogenetic Reproduction in Hexacola sp. near websteri1 a Parasite of Hippelates Eye Gnats23
- Host Instar, Habitat, and Host Exposure Affecting Parasitization by Hexacola sp. Near websteri of Hippelates collusor1,2
- A new species of Hexacola Foerster (Hymenoptera: Figitidae), parasitoid of Lemnaphila neotropica Lizarralde de Grosso (Diptera: Ephydridae)
- DESCRIPTIONS OF IMMATURE STAGES OF THE CYNIPID HEXACOLA SP. NEAR WEBSTERI (EUCOILINAE: HYMENOPTERA), A LARVAL–PUPAL PARASITE OF HIPPELATES EYE GNATS (DIPTERA: CHLOROPIDAE)
- First Canadian Record of <i>Hexacola Neoscatellae</i> (Hymenoptera: Figitidae: Eucoilinae), A Parasitoid of the Shore Fly, <i>Scatella Stagnalis</i>