4
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Reproductive and Developmental Biology of Acroclisoides sinicus, a Hyperparasitoid of Scelionid Parasitoids

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Simple Summary

          Acroclisoides sinicus is a pteromalid of Asian origin that has recently been detected in Europe and North America. It has been frequently found in association with several scelionid and eupelmid primary parasitoids of hemipteran eggs, including the brown marmorated stink bug Halyomorpha halys, leading us to suspect that A. sinicus is an obligate or facultative hyperparasitoid. Laboratory tests were conducted using pentatomid egg masses ( H. halys, Acrosternum heegeri, and Dolycoris baccarum) parasitized by primary parasitoids, including Trissolcus japonicus, Trissolcus mitsukurii, Telenomus sp., Anastatus bifasciatus, and unparasitized H. halys egg masses, to test this hypothesis. Our studies confirmed that A. sinicus is an obligate hyperparasitoid of the pupal stage of scelionid primary parasitoids but not of eupelmid ones, at least under the tested conditions.

          Abstract

          Acroclisoides sinicus (Hymenoptera: Pteromalidae) was described in 1988 from China, but recent findings in Europe and North America within the framework of Halyomorpha halys (Hemiptera: Pentatomidae) biological control indicate a Holarctic distribution. The few records and fragmented information on A. sinicus are derived from generic observations of other species belonging to the same genus, and its biological and ethological traits are still completely unexplored. It was suspected to be a facultative or obligate hyperparasitoid of many egg parasitoid species (e.g., Scelionidae and Eupelmidae), especially those parasitizing Pentatomidae eggs. Laboratory colonies of A. sinicus were established from specimens collected in the field in Europe and the USA, which allowed us to investigate for the first time the life traits of this somewhat enigmatic species. Our studies confirmed the obligate hyperparasitoid hypothesis for species of Scelionidae but not of Eupelmidae. Laboratory studies revealed that A. sinicus is extremely selective in its host recognition as only the pupal stage of its host species is exploited for parasitization. Taking into consideration its hyperparasitoid habit, the adventive A. sinicus populations in Europe and North America may potentially be severe threats to pentatomid natural control as new components in the trophic chain of pentatomids and their parasitoid guilds.

          Related collections

          Most cited references38

          • Record: found
          • Abstract: not found
          • Article: not found

          A New Species of Trissolcus (Hymenoptera: Scelionidae) Parasitizing Eggs of Halyomorpha halys (Heteroptera: Pentatomidae) in China with Comments on Its Biology

            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            First discovery of adventive populations of Trissolcus japonicus in Europe

              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              Two Asian egg parasitoids of Halyomorpha halys (Stål) (Hemiptera, Pentatomidae) emerge in northern Italy: Trissolcus mitsukurii (Ashmead) and Trissolcus japonicus (Ashmead) (Hymenoptera, Scelionidae)

              Halyomorphahalys (Stål) is a severe agricultural pest that is spreading worldwide from its original distribution in Asia. Egg parasitoids from Asia, which play a key role in the population dynamics of H.halys , are following its host along global pathways. We present the first records of Trissolcusmitsukurii in Europe, and of Trissolcusjaponicus in Italy. Both discoveries were made in northern Italy, where H.halys is widely present and has reached extremely high population densities in some areas. Given the availability of their host, the distributions and populations of these exotic egg parasitoids are expected to expand, even in the absence of human intervention.
                Bookmark

                Author and article information

                Contributors
                Role: Academic Editor
                Journal
                Biology (Basel)
                Biology (Basel)
                biology
                Biology
                MDPI
                2079-7737
                16 March 2021
                March 2021
                : 10
                : 3
                : 229
                Affiliations
                [1 ]CREA—Research Centre for Plant Protection and Certification, I-50125 Florence, Italy; lucrezia.giovannini@ 123456crea.gov.it (L.G.); piofederico.roversi@ 123456crea.gov.it (P.F.R.)
                [2 ]USDA-ARS—Southeast Watershed Research Unit, Tifton, GA 31793, USA; glynn.tillman@ 123456usda.gov
                [3 ]USDA-ARS—Beneficial Insects Introduction Research Unit, Newark, DE 19713, USA; kim.hoelmer@ 123456usda.gov
                Author notes
                Author information
                https://orcid.org/0000-0002-3711-1017
                https://orcid.org/0000-0002-8098-8367
                Article
                biology-10-00229
                10.3390/biology10030229
                8002251
                33809635
                28509794-9d2c-4ce7-9f3d-fb671a7fb8a5
                © 2021 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 25 February 2021
                : 14 March 2021
                Categories
                Article

                halyomorpha halys,trissolcus japonicus,trissolcus mitsukurii,scelionidae,eupelmidae,biological control

                Comments

                Comment on this article