Peliococcus turanicus (Kiritshenko)

MOGHADDAM, MASUMEH & WATSON, GILLIAN W., 2022, The Scale Insects Of Iran (Hemiptera: Coccomorpha) Part 2 The Mealybugs (Pseudococcidae And Rhizoecidae) And Putoidae, Zootaxa 5126 (1), pp. 1-169 : 82-84

Peliococcus turanicus (Kiritshenko)

( Fig. 33 , distribution map Fig. 68 H )

Phenacoccus turanicus Kiritshenko, 1932: 137 . Phenacoccus hilarius Kiritshenko, 1936 a: 136 . Peliococcus terrestris Borchsenius, 1949: 254 . Peliococcus turanicus Borchsenius, 1949: 257 . Eupeliococcus drabae Săvescu, 1985: 118 . Eupeliococcus tragopogoni Săvescu, 1985: 117 .

Field characteristics: Adult female body oval, up to 3.5 mm long, pink or red in life.

Microscopic diagnosis: Slide-mounted adult female elongate oval. Antennae each with 9 segments. Legs well developed; claw with a distinct denticle; tarsal digitules pointed at tip and shorter than claw. Cerarii numbering 14−18 pairs. Anal lobe cerarii each with 2 slender lanceolate setae, 1 or 2 small setae and 6−8 trilocular pores; remaining cerarii each with 2 setae and 1 or 2 trilocular pores. Circulus quite large, apparently undivided. Ostioles well developed.

Dorsum with spinose to conical setae of various sizes, each sometimes with 1 or 2 trilocular pores situated near setal collar. Multilocular disc pores forming rows or clusters of 2−5 pores with a tubular duct at the center, present across abdominal segments and thorax. Trilocular pores evenly distributed. Quinquelocular pores absent. Oral collar tubular ducts of 2 sizes: larger ducts found near centers of most clusters of multilocular disc pores on thorax and abdominal segments I−III; and 2−5 smaller ducts present in each cluster of multilocular disc pores on segments IV and V, and in rows across segments VI and VII.

Venter with long flagellate setae. Multilocular disc pores present posterior to vulva, forming double or triple rows medially on posterior edges of segments IV−VII, and a few on each of segments II and III; also in groups on margins and submargins of thorax and abdominal segments. Quinquelocular pores absent. Trilocular pores evenly distributed. Oral collar tubular ducts of 2 sizes, as on dorsum. Small oral collar ducts present in rows across abdominal segments, and large ducts present on head and thorax associated with clusters of multilocular disc pores, also present on margins and submargins of abdominal segments.

Distribution: Peliococcus turanicus is known from 16 countries in the Palaearctic Region including Iran, where it has been recorded from Esfahan, Markazi and Tehran provinces ( Moghaddam 2013b; García Morales et al. 2016).

Host-plants: The species has been recorded on host-plants in 53 genera belonging to 17 families ( García Morales et al. 2016). In Iran, it has been found on Astragalus (Fabaceae) , Descurainia sophia and Raphanus sativus (Brassicaceae) ( Moghaddam 2013b).

Economic importance: None.

Natural enemies: None recorded.

Comments: The accompanying illustration is reproduced from Moghaddam (2013a), page 45, Fig. 23 , with kind permission from the Chief Editor of Zootaxa.

Genus PELIONELLA Kaydan

Pelionella Kaydan, 2015: 226‒227 . Type species: Peliococcus manifectus Borchsenius.

Principal characters: Slide-mounted adult female elongate. Anal lobes well developed. Antennae each with 9 segments. Posterior spiracles larger than anterior spiracles. Legs well developed, each claw with a denticle; tarsal digitules hair-like, claw digitules broader than tarsal digitules, knobbed. Cerarii numbering 3‒18 pairs; anal lobe cerarii usually each with 2 enlarged setae, other cerarii on margins each with 2 enlarged setae and 2‒10 trilocular pores, not situated on an elevated area; also 1 to several dorsal cerarii present. Circulus usually present. Both pairs of ostioles well developed. Some dorsal setae associated with trilocular pores, but pores never touching basal socket and setae situated on an elevated area of cuticle. Dorsal multilocular pores each with 2 concentric rings of loculi, only found in clusters. Dorsal oral collar tubular ducts of 1 or 2 sizes, always forming clusters, usually associated with multilocular pores. Anal ring oval, with 1 or 2 outer rows and 1 inner row of pores; and 6 anal ring setae.

Comments: Worldwide, 12 species are included in Pelionella ( García Morales et al. 2016) ; one species is known from Iran (Moghaddam & Mohammadi-Khorramabadi 2015).

Figures

FIGURE 23. Adult female of Formicococcus robustus (Ezzat & McConnell). © Magnolia Press, www.mapress.com/j/zt, reproduced with the copyright holder’s permission.

FIGURE 33. Adult female of Peliococcus turanicus (Kiritshenko). © Magnolia Press, www.mapress.com/j/zt, reproduced with the copyright holder’s permission.

FIGURE 68. Maps of species distributions in Iran. A. Mirococcus inermis (Hall); B. Nipaecoccus viridis (Newstead); C. Paracoccus burnerae (Brain); D. Paracoccus ficus Moghaddam; E. Peliococcopsis priesneri (Laing); F. Peliococcus chersonensis (Kiritshenko); G. Peliococcus marrubii (Kiritshenko); H. Peliococcus turanicus (Kiritshenko); I. Pelionella grassiana (Goux); J. Phenacoccus aceris (Signoret); K. Phenacoccus arthrophyti Archangelskaya; L. Phenacoccus betae Moghaddam.