Chorizococcus viticola Kaydan & Kozár

Moghaddam, Masumeh, 2013, A review of the mealybugs (Hemiptera: Coccoidea: Pseudococcidae, Putoidae and Rhizoecidae) of Iran, with descriptions of four new species and three new records for the Iranian fauna, Zootaxa 3632 (1), pp. 1-107 : 18

Chorizococcus viticola Kaydan & Kozár

( Fig. 7 )

Chorizococcus viticola Kaydan & Kozár in Fallahzadeh, Kaydan & Kozár, 2010: 158.

DIAGNOSIS. Body of adult female oval. Antennae 8 segmented. Translucent pores present on hind tibia. Cerarii numbering 2 pairs situated on last two abdominal segments; anal lobe cerarii each with 2 conical setae, plus 34−49 trilocular pores and 3−8 auxiliary setae. Ostioles present. Circulus oval. Multilocular disc pores present ventrally on posterior edges of abdominal segments IV −VIII + IX. Oral rim ducts present dorsally on head, thorax, and all abdominal segments except segment VIII; also ventrally on margin of thorax and abdominal segments II and III. Ventral oral collar ducts usually present on last abdominal segments, and also dorsally across abdominal segments II −VIII.

DISTRIBUTION. Iranian. In Iran, C. viticola occurs in Fars.

MATERIAL EXAMINED. C. viticola was collected from Vitis vinifera (Vitaceae) at Beyza in Fars, Iran, in 2001 and 2003 by Fallahzadeh.

COMMENTS. C. viticola is most similar to Spilococcus alhagii , both species having cup-shaped translucent pores on the hind tibia. C. viticola can readily be distinguished from S. alhagii in having only two true cerarii (15 or 16 pairs in S. alhagii ). Some cerarii-like structures have been observed on the margin on some specimens of C. viticola , but there are never more than 11, and C. viticola has a greater number of oral-rim ducts on the dorsum than on S. alhagii ; C. viticola also has oral collar tubular ducts on the dorsum of the last abdominal segment, which are absent on S. alhagii . C. viticola is the most important pest of grapevine in some parts of Fars, Iran. The damage caused by this pest has increased in recent years (Fallahzadeh et al. 2010). Fallahzadeh & Japoshvili (2010) described the parasitoid Gyranusoidea iranica Japoshvili and Fallahzadeh ( Hymenoptera : Encyrtidae ) on C. viticola .

The accompanying illustration and diagnosis are taken from Fallahzadeh et al. (2010) with kind permission from M. B. Kaydan.

Figures

FIGURE 7. Adult female Chorizococcus viticola Kaydan & Kozár.