Diolcogaster
Ashmead, 1900
Diolcogaster is a of small in the Microgastrinae (Hymenoptera: Braconidae). The genus contains over 140 described worldwide, with additional undescribed species likely present. Members are koinobiont endoparasitoids of Lepidoptera larvae, playing significant roles as agents of caterpillar pests. Several species have been studied for their distribution patterns, with some showing ecological versatility across diverse and elevations.
Pronunciation
How to pronounce Diolcogaster: //daɪˌɒlkəˈɡæstər//
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Habitat
Diverse and elevations; temperate regions are currently predominant, with some showing ecological versatility across varied environmental conditions. Climate modeling predicts expansion into subtropical regions under future scenarios.
Distribution
Global distribution with patchy ranges; documented from Palaearctic (including Iran, Croatia, Tunisia, Ukraine, Algeria, Israel, Russia, Yemen, Bulgaria, Denmark, Germany, Spain), Australasia (including New Zealand and New Caledonia), Borneo, and the Nearctic (Alberta, Manitoba, Ontario, Canada). Western Palaearctic origin suggested for some .
Host Associations
- Lepidoptera larvae - koinobiont endoparasitoidexplicitly stated as for members
- Plutella xylostella (diamondback moth) - specific for D. claritibia in Nearctic region
- Hypercompe cunigunda - gregarious for D. choi in Brazil
Life Cycle
Koinobiont endoparasitoid development within living larvae; some are gregarious.
Ecological Role
Important biocontrol agents of caterpillar larvae; natural enemies of agricultural pest ; used in and programs.
Human Relevance
Strategic use in programs for lepidopteran agricultural pests; D. claritibia has been introduced to North America from Europe, likely for pest management purposes.
Sources and further reading
- BugGuide
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- Systematics and host relationships of Australasian Diolcogaster (Hymenoptera : Braconidae : Microgastrinae)
- Predicting Potential Range Shifts and Molecular Approaches in Four Diolcogaster Ashmead Species (Hymenoptera: Braconidae, Microgastrinae)
- A taxonomic review of the genus Diolcogaster Ashmead (Hymenoptera, Braconidae, Microgastrinae) in Iran, distribution and morphological variability
- Taxonomic study of the genus Diolcogaster Ashmead (Hymenoptera, Braconidae, Microgastrinae) from Borneo with the description of four new species
- First Nearctic record ofDiolcogaster claritibia(Hymenoptera: Braconidae: Microgastrinae), with notes on taxonomic status and natural history
- Erratum: Diolcogaster choi sp. nov. from Brazil, a new gregarious microgastrine parasitoid wasp (Hymenoptera: Braconidae) reared from Hypercompe cunigunda (Lepidoptera: Erebidae) in Brazil
- Life History of the Parasite Diolcogaster facetosa (Weed) (Hymenoptera: Braconidae) and Its Behavioral Adaptation to the Defensive Response of a Lepidopteran Host
- Diolcogaster choi sp. nov. from Brazil, a new gregarious microgastrine parasitoid wasp (Hymenoptera: Braconidae) reared from Hypercompe cunigunda (Lepidoptera: Erebidae) in Brazil