Biosystematics of the Psyttalia concolor Species Complex (Hymenoptera: Braconidae: Opiinae): The Identity of Populations Attacking Ceratitis capitata (Diptera: Tephritidae) in Coffee in Kenya

Kimani-Njogu, S.W.; Trostle, M.K.; Wharton, Robert A.; Woolley, James B.; Raspi, Alfio

doi:10.1006/bcon.2000.0889

Cited by 41 publications

(37 citation statements)

References 14 publications

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“…concolor (cf. = color form) (Kimani-Njogu et al 2001;Wharton et al 2000). However, recent genetic analysis showed clear separation of the north African P. concolor and the sub-Saharan P. humilis (Rugman-Jones et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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Comparative evaluation of two olive fruit fly parasitoids under varying abiotic conditions

et al. 2010

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Psyttalia lounsburyi (Silvestri) and P. humilis (Silvestri) (Hymenoptera: Braconidae) were evaluated in California for their potential to control the invasive olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae). Psyttalia lounsburyi is a specialist on B. oleae while P. humilis also attacks other tephritid species. Field cage trials, conducted from 2006 to 2009, were used to compare P. lounsburyi and two populations of P. humilis (Kenya and Namibia) in California's interior valley and coastal regions. Both parasitoid species reproduced on B. oleae in all trials. Under similar abiotic conditions, offspring production per female was higher in P. humilis than in P. lounsburyi, suggesting that host specificity by P. lounsburyi does not confer a higher efficiency on B. oleae in cultivated olives. Two abiotic factors were shown to impact parasitoid efficiency. First, adult parasitoid survival was poor during periods of high summer temperatures, common to the olive production areas in California's interior valleys. Second, parasitism levels were lower on B. oleae larvae feeding in larger Ascolano cv. fruit than in smaller Manzanillo cv. fruit. Results are discussed relative to biological control of B. oleae in commercial olives and the usefulness of natural enemies specialized to attack fruit flies in wild olives compared with the larger cultivated olive fruit.

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Section: Introductionmentioning

confidence: 99%

“…The P. humilis Ka was previously referred to P. cf. concolor (Kimani-Njogu et al 2001;Wharton et al 2000;Yokoyama et al 2008a) or P. concolor (Wang et al 2009b, c). The P. humilis Namibia (Na) colony was originally established from parasitoids reared from B. oleae collected on wild olives in Namibia ).…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of two olive fruit fly parasitoids under varying abiotic conditions

et al. 2010

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“…I am unable to divide them satisfactorily into distinct species groups despite several attempts to delineate a smaller subset as the concolor species group (Wharton and Gilstrap 1983;Wharton 1997;Kimani-Njogu et al 2001;Rugman-Jones et al 2009). Species such as P. concolor, P. humilis, P. cosyrae (Wilkinson), P. perproxima (Silvestri), and P. phaeostigma (Wilkinson) are capable of hybridizing (producing viable female off spring) when confi ned in small containers (Kimani-Njogu et al 2001;Billah et al 2008a) despite originating from genetically distinct populations and in some cases being morphologically distinct as well (Kimani-Njogu et al 2001;Billah et al 2008b;Rugman-Jones et al 2009). Several cryptic species remain to be elucidated, and applying available names to various Afrotropical populations will continue to be a challenge (Rugman-Jones et al 2009).…”

Section: Resultsmentioning

confidence: 99%

Two new species of Psyttalia Walker (Hymenoptera, Braconidae, Opiinae) reared from fruit-infesting tephritid (Diptera) hosts in Kenya

Wharton¹

2009

546

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Two species of opiine Braconidae, reared from fruit-infesting Tephritidae in Kenya, are described. Psyttalia masneri, sp. n., was reared from fruits of Dracaena fragrans (L.) Ker Gawl. (Liliaceae) infested with Taomyia marshalli Bezzi in western Kenya. Psyttalia masneri is the only opiine braconid known to attack members of the genus Taomyia. Unusual morphological features of P. masneri and its host are detailed. Psyttalia halidayi, sp. n., was reared from fruits of Lettowianthus stellatus Diels (Annonaceae) infested with Ceratitis rosa Karsch in coastal Kenya. Psyttalia halidayi is morphologically similar to several described species of Psyttalia that have previously been used in the biological control of tephritid pests. Unlike these other species, P. halidayi can attack and successfully develop on C. rosa, a serious pest of cultivated fruits. A list of valid species in Psyttalia is provided, along with comments on species groups and host records.

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“…When ANOVAs were significant (P = 0.05), the means were separated using the Student-Newman-Keuls (SNK) test [14,15,16,17]. All data metrices were log 10 transformed first before the statistical treatment.…”

Section: Discussionmentioning

confidence: 99%

“…All morphometric analyses were performed using Statistical Analysis System software version 8.2 (SAS Institute Inc., 2001). Wing and hind tibia measurements were analyzed separately to allow covariances between distances, sexes and species to interact in a more meaningful way [14].…”

Section: Discussionmentioning

confidence: 99%

Morphometric characterization of three Tsetse Fly Species - Glossina M. Morsitans, G. P. Palpalis and G. Tachinoides (Diptera: Glossinidae) from Ghana

Mustapha¹,

Billah²,

Yawson³

2018

IJEAB

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Biosystematics of the Psyttalia concolor Species Complex (Hymenoptera: Braconidae: Opiinae): The Identity of Populations Attacking Ceratitis capitata (Diptera: Tephritidae) in Coffee in Kenya

Cited by 41 publications

References 14 publications

Comparative evaluation of two olive fruit fly parasitoids under varying abiotic conditions

Comparative evaluation of two olive fruit fly parasitoids under varying abiotic conditions

Two new species of Psyttalia Walker (Hymenoptera, Braconidae, Opiinae) reared from fruit-infesting tephritid (Diptera) hosts in Kenya

Morphometric characterization of three Tsetse Fly Species - Glossina M. Morsitans, G. P. Palpalis and G. Tachinoides (Diptera: Glossinidae) from Ghana

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