FOPIUS ARISANUS PDF

Abstract. Fopius arisanus (Hym., Braconidae) is an egg–pupal parasitoid of tephritid fruit flies. Since its introduction to Hawaii in the late s, it has caused . Abstract. We describe all immature stages, particularly the previously undescribed instars, of Fopius arisanus (Sonan) (Hymenoptera. Fopius arisanus (Sonan, ) is an egg-pupal parasitoid of Tephritid fruit flies. This Braconid wasp has been utilized for biological control of the Mediterranean .

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Fullaway described Opius oophilus on the basis of specimens collected in Hawaii following the introduction of arisanuw species against Oriental fruit fly in the late s, but oophilus was later recognized as a synonym of arisanusoriginally described from Taiwan.

The actual country of origin for the material introduced to Hawaii is uncertain though believed to be Malaysia. Fopius arisanus has subsequently become established in several other countries, including Australia, Costa Rica, Fiji, and Mauritius Wharton et al. For a more recent summary, see Rousse et al. Distribution Native Borneo Clausen, C.

Introduced Argentina Ovruski, S. New South Wales Snowball, G. Costa Rica Purcell, M. Morelos Coronado Blanco, J.

Simmonds; and Laing, J. Biology and Behavior This species oviposits in the egg of the host. It is an egg-prepupal parasitoid, eventually emerging from the host puparium shortly after the latter is formed killing the host before pupation takes place. Initial work on the biology of this species was published by van den Bosch et al. More recent studies include those of Snowball et al. Wang and Messing explored the effects of several factors indirect host stimuli, food supply, and mating status on egg maturation in female F.

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The authors suggest that providing laboratory-reared F. Additional experiments indicated that intraspecific competition occurs in superparasitized medfly eggs, resulting in high mortality of supernumerary F. Fopius arisanus has achieved a competitive advantage over other introduced parasitoid species in Hawaii. Wang and Messing have shown several mechanisms by which F. Similar to results from previous experiments with Diachasmimorpha tryoni Wang and MessingDiachasmimorpha krausiiand Psyttalia concolor Wang and MessingWang et al.

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As an egg parasite, F. The authors also report that in experiments with the 4 larval parasitoids none were able to directly destroy F. Although a superior competitor among many fruit fly parasitoids, F. These recent studies verify and expand on the earlier studies of interspecific competition by van den Bosch and Haramotovan den Bosch and Haramoto and Bess et al.

For a detailed review of the biology of this species, see Rousse et al. Biology – Host Range Testing Based on its successful development on a range of tephritid pests against which it has been introduced, Fopius arisanus cannot be regarded as a strict specialist on Oriental fruit fly, Bactrocera dorsalis.

However, there is clear evidence that not all fruit-infesting tephritids are suitable hosts. Under laboratory conditions, F.

Although it appears that F. Nishida and Haramoto tested the capability of F. Nishida and Haramoto also found B. Other experimental studies provide evidence that F.

Similar results were obtained on Anastrepha suspensa after earlier failures Lawrence et al. Snowball and Lukins reared arisanus from several species of Bactrocera when it was introduced to Australia for biological control of Queensland fruit fly. The potential impact of F.

Trupanea dubautiae is critical for pollination of plants in Hawaii. In laboratory experiments, no evidence of parasitism of T.

Biological Control Successfully introduced to Hawaii during the biological control program against Oriental fruit fly, Bactrocera dorsalis Clancy et al. Subsequent sampling programs in Hawaii confirm the dominance of arisanus and the importance of this species in suppressing both medfly and Oriental fruit fly e.

Efficacy in combination with SIT: Suggestions for augmentative biological control: Potential for use against olive fly in California: Introduced to Society Islands Tahiti, Moorea, Raiatea, Tahaa, and Huahine from Hawaii fromresulting in the most successful example of classical biological control of tephritid fruit flies in the Pacific area outside of Hawaii Vargas et al. A listing of F. Mexico—introduced in against Anastrepha ludens ; Jimenez-Jimenez Costa Rica—introduced in against Ceratitis capitata ; specimens recovered, established Holler et al.

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Argentina—introduced in against C. Florida, USA —introduced against A. Parasitoids of Fruit-Infesting Tephritidae.

Fopius arisanus Sonan, See additional comments under the Fopius persulcatus species group on the Fopius page. An overview of the biology of this species has been published by Rousse et al. Opius oophilus Fullaway is a junior synonym Wharton and Gilstrapand all of the biological control literature prior to about used the name oophilus. Prior to the description of Fopiusthe species now placed in this genus were most frequently included either in Opius or Biosteres.

This particular species has also been placed, occasionally, in Diachasma. Thus, the names Opius oophilusBiosteres oophilusand Diachasma oophilus all refer to Fopius arisanus. Members of the persulcatus species group to which Fopius arisanus belongs are characterized by the presence of striate sculpture on the second metasomal tergum as in Fig. This species is further characterized by generally dark abdomen and thoracic pleura and the absence of a ridge apically on the dorsal valve of the ovipositor.

Fopius arisanus frons, fopiius, Fopius arisanus fore wing Diagnosis and Relationships markup. Relationships among members of the genus Fopius have been airsanus discussed by Wharton This species was originally described from Taiwan.

Biology of Fopius arisanus (Hymenoptera: Braconidae) in Two Species of Fruit Flies

This species oviposits in the egg of the host. Based on its successful development on a range of tephritid pests against which it has been introduced, Fopius arisanus cannot be regarded as a strict specialist on Oriental fruit fly, Bactrocera dorsalis.

Successfully introduced to Hawaii during the biological control program against Oriental fruit fly, Bactrocera dorsalis Clancy et al. See also Rousse et al. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author s and do not necessarily reflect the views of the National Science Foundation.