Trichogramma pretiosa
Authors/Creators
- 1. INRAE, UR ASTRO, Petit-Bourg, Guadeloupe, France
- 2. UMR ISA, INRAE, Université Côte d'Azur, Sophia-Antipolis, France
- 3. CBGP, INRAE, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France
- 4. Canadian National Collection of Insects, Ottawa, Canada
Description
Trichogramma pretiosa (Riley, 1879)
Fig. 6
Notes.
This species was collected during our survey. It is officially cited here for the first time from Guadeloupe, although its presence had previously been mentioned through a personal communication by Jean Etienne, as reported in Dumbardon-Martial et al. (2018).
Material examined.
Guadeloupe • 108 specimens; Petit–Bourg, INRAE experimental station; 16°12.22'N, 61°39.43'W; 6 Dec 2023; M. Gumbau leg.; reared from field-collected eggs of Diaphania hyalinata on cucumber; specimens stored in ISA Cryobox MG-DBF 23-ELEVAGE • 2 specimens; same collection data as for preceding; 27 Aug 2024; 1 ♀ analyzed and preserved as voucher (CBGP MGUM 0416_0101); NCBI accessions PZ 362393; other specimens stored in CBGP Cryobox MG-MD-DBF-2024 # 2. • 3 specimens; Petit-Bourg, commercial market garden farm; 16°13.82'N, 61°36.14'W; 27 Sept 2024; M. Gumbau leg.; reared from field-collected larvae of Diaphania hyalinata on cucumber; specimens stored in CBGP Cryobox MG-AG 24-SM.
Distribution.
Trichogramma pretiosa is widely distributed in the Nearctic and Neotropical regions ranging from Canada to Chile, and occurring in the Caribbean subregion including Martinique, Virgin Islands, Cuba, and Dominican Republic.
Biology.
Similar to that described for T. atopovirilia.
Hosts.
Trichogramma pretiosa is one of the most polyphagous species of the genus, cited from tens of host species. It is one of the most widely used species of Trichogramma for the biological control of agricultural pests (Zucchi et al. 2010). In the Americas, it has been successfully used against several lepidopteran pests. Diaphania hyalinata is cited as a primary host of T. pretiosa (Letourneau 1987; Pinto 1998; Polanczyk et al. 2009, 2011; Dumbardon-Martial et al. 2018).
Comment.
According to the rules of zoological nomenclature (International Commission on Zoological Nomenclature (ICZN 1999), the specific epithet must agree in gender with the genus name when it is an adjective. Trichogramma is a neuter noun (derived from the Greek gramma, meaning “ written ”), so an adjectival epithet should be in the neuter form, pretiosum and not pretiosa. However, if the original author used pretiosa as a noun in apposition (for example, a substantive), it remains invariable, regardless of the gender of the genus name. Consequently, unless there is historical evidence that pretiosa was intentionally used as an adjective, which is not the case, pretiosa should be treated as a noun in apposition. Therefore, gender agreement with the neuter genus should not be applied and the original form pretiosa should be retained (UCD Community 2023).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- CBGP
- Material sample ID
- CBGP MGUM 0416_0101
- Event date
- 2023-12-06 , 2024-08-27 , 2024-09-27
- Verbatim event date
- 2023-12-06 , 2024-08-27 , 2024-09-27
- Scientific name authorship
- Riley
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Lepidoptera
- Family
- Trichogrammatidae
- Genus
- Trichogramma
- Species
- pretiosa
- Taxon rank
- species
- Taxonomic concept label
- Trichogramma pretiosa (Riley, 1879) sec. Gumbau, Marteil, Groussier, Cruaud, Nidelet, Warot, Fernandez-Triana, Penet, Blazy & Rasplus, 2026
References
- Dumbardon-Martial T, Lucas P-D, Warot S, Ris N, Groussier G (2018) Recherche d'espèces du genre Trichogramma sur Cucurbitacées cultivées et plantes associées en Martinique en vue du développement de méthodes de lutte biologique (Hymenoptera, Trichogrammatidae). Bulletin de la Société entomologique de France 123: 401–410. https://doi.org/10.32475/bsef_2034
- Zucchi RA, Querino RB, Monteiro RC (2010) Diversity and Hosts of Trichogramma in the New World, with Emphasis in South America. In: Consoli FL, Parra JRP, Zucchi RA (Eds) Egg Parasitoids in Agroecosystems with Emphasis on Trichogramma. Springer Netherlands, Dordrecht, 219–236. https://doi.org/10.1007/978-1-4020-9110-0_8
- Letourneau DK (1987) The Enemies Hypothesis: Triytophic Interactions and Vegetational Diversity in Tropical Agroecosystems. Ecology 68: 1616–1622. https://doi.org/10.2307/1939853
- Pinto JD (1998) Article: Systematics of the North American species of Trichogramma Westwood (Hymenoptera: Trichogrammatidae). Memoirs of the Entomological Society of Washington 22: 1–287.
- Polanczyk RA, Grecco ED, Andrade GS, Celestino FN, Barbosa WF, Franco CR, Pratissoli D (2009) Performance of Trichogramma spp. (Hymenoptera: Trichogrammatidae) in eggs of Diaphania hyalinata (Lepidoptera: Pyralidae) treated with Metarhizium anisopliae and Beauveria bassiana. Arquivos do Instituto Biológico 76: 495–499. https://doi.org/10.1590/1808-1657v76p4952009
- Polanczyk RA, Barbosa WF, Celestino FN, Pratissoli D, Holtz AM, Milanez AM, Cocheto JG, da Silva AF (2011) Influence of Diaphania hyalinata (L.) (Lepidoptera: Crambidae) egg density on the parasitization capacity of Trichogramma exiguum Pinto & Platner and Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae). Neotropical Entomology 40: 238–243.
- UCD Community (2023) Universal Chalcidoidea Database website. https://ucd.chalcid.org [June 18, 2025]