Parasitism of Hyalopterus pruni (Geoffroy, 1762) (Homoptera: Aphididae) by larvae of Allothrombium triticium Zhang, 1995 (Acarina: Trombidiidae) and Erythraeus (Erythraeus) ankaraicus Saboori, Cobanoglu & Bayram, 2004 (Acarina: Erythraeidae) larvae on Phragmites austrialis L. (Poaceae)

Abstract

Allothrombium triticium Zhang, 1995 and Erythraeus (Erythraeus) ankaraicus Saboori, Cobanoglu & Bayram, 2004 (Acarina: Prostigmata: Trombidiidae, Erythraeidae) samples were collected on Mealy plum aphid Hyalopterus pruni (Geoffroy, 1762) (Homoptera: Aphididae) which was exist on secondary host Phragmites austrialis L. (Poaceae) during 2001-2002, Ankara-Turkey. A. triticium was found in a higher density than E. ankaraicus on aphids. Larvae of A. triticium peaked in mid June while E. ankaraicus peaked at the beginning of July on H. pruni. It was observed that these species preferred the thorax of aphids as attachment site. In the current study, density of each mite species exist on the host, their preference to the biological development stages of aphids and seasonal abundances were evaluated. 

Keywords

• Acari
• Trombidiidae
• Erythraeidae
• Allothrombium
• Erythraeus
• Phragmites
• Hyalopterus

Phragmites austrialis L. (Poaceae) üzerinde Hyalopterus pruni (Geoffroy, 1762) (Homoptera: Aphididae)’de ektoparazit iki akar Allothrombium triticium Zhang, 1995 (Acarina: Trombidiidae) ve Erythraeus (Erythraeus) ankaraicus Saboori, Cobanoglu & Bayram, 2004 (Acarina: Erythraeidae)

Öz

Hyalopterus pruni (Geoffroy, 1762) (Homoptera: Aphidiidae) üzerinde ektoparazit iki akar türü; Allothrombium triticium Zhang, 1995 (Acarina: Prostigmata: Thrombidiidae) ve Erythraeus (Erythraeus) ankaraicus Saboori, Cobanoglu & Bayram, 2004 (Acarina: Prostigmata: Erythraeidae), ara konukçu Phragmites austrialis L. (Poaceae) üzerinden, Ankara’da 2001- 2002 yıllarında toplanmıştır. H. pruni üzerinde A. triticium, E. ankaraicus’a oranla daha yüksek yoğunlukta bulunmuştur. A. triticium larvaları, yaprakbiti üzerinde haziran ortasında, E. (E.) ankaraicus larvaları ise temmuz başında en yüksek yoğunluğa ulaşmaktadır. Ektoparazit akarlar, yaprakbitine tutunmak için thoraks bölgesini tercih etmektedir. Bu çalışmada bu akarların, yaprakbitinin biyolojik dönemlerini tercihleri, yoğunluğu ve mevsimel dağılımı değerlendirilmiştir.

Anahtar Kelimeler

• Acari
• Trombidiidae
• Erythraeidae
• Allothrombium
• Erythraeus
• Phragmites
• Hyalopterus

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