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Original Articles

Polymorphism of Philaenus spumarius L. (Hemiptera: Cercopidae) in the Samsun (Mid-Black Sea Region) populations of Turkey

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Pages 277-283 | Accepted 28 Jan 2005, Published online: 31 May 2013
 

Abstract

Variation in the frequency of colour/pattern phenotypes of Philaenus spumarius (L.) is studied in the three local populations of Samsun (Mid-Black Sea Region), Turkey. The data, obtained from the 91 samples including 10,427 adult spittlebugs, 5,340 females and 5,087 males were analysed according to phenotype distributions in the study sites. The adult spittlebugs were collected during eleven months except with April. The mean sample size was 114.6±19.9 (Mean±S.E.) for 91 samplings. Eight different phenotypes of P spumarius were detected in the Samsun populations. Of these, four were non-melanic and four were melanic phenotypes with the lack of the “O” group. In females, non-melanic frequency was over 95%, which TYP (typicus) was the predominant phenotype, but POP (populi) in males. However the phenotype frequency distributions were not different between the sites studied. Although, frequency of females reached up to 85% in some samples, the overall sex ratio did not differ from the 1:1.

Résumé

Polymorphisme de Philaenus spumarius (L.) (Hemiptera: Cercopidae) dans les populations de la région de Samsun (Turquie) La variation de la fréquence de patrons de couleur des phéno-types de Philaenus spumarius L. est étudiée dans trois populations de Samsun (moyenne région de la Mer Noire) en Turquie. Les données, obtenues de 91 échantillons composés de 10 427 adultes, 5 340 femelles et 5 087 mâles ont été analysées en fonction de la distribution des phénotypes dans les sites d’études. Les adultes ont été récoltés pendant 11 mois sauf avril. La taille moyenne des échantillons a été 114.6 ± 19.9 (moyenne ± E.S.) pour 91 échantillons. Huit phénotypes différents de P. spumarius ont été détectés dans les populations de Samsun. Parmi eux, quatre sont des phénotypes non mélanique et quatre sont mélaniques avec l’absence du groupe «O». Chez les femelles, la fréquence non mélanique dépasse 95 %, avec dominance du phénotype TYP (typicus), mais POP (populi) chez les mâles. Cependant la fréquence de distribution des phénotypes n’est pas influencée par les sites d’études. Bien que la fréquence des mâles atteigne 85 % dans certains échantillons, le sex-ratio total diffère peu de 1:1

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