Erimococcus talhouki (Matile-Ferrero)

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 : 54-56

Erimococcus talhouki (Matile-Ferrero)

( Fig. 19 , distribution map Fig. 67 F )

Peliococcus talhouki Matile-Ferrero, 1984: 225 .

Field characteristics: Not recorded.

Microscopic diagnosis: Slide-mounted adult female elongate oval. Anal lobes well developed. Antennae each with 9 segments. Legs well developed; claw with a distinct denticle; tarsal digitules pointed at tip and shorter than claw. Cerarii reduced in number to 6 or 7 pairs on abdomen. Anal lobe cerarii each with 2 long lanceolate setae, 8−10 trilocular pores and 1 small seta. Anterior cerarii each containing a pair of smaller lanceolate setae, sometimes difficult to distinguish from other dorsal setae. Circulus quite large, apparently undivided. Ostioles well developed.

Dorsum with lanceolate setae of various sizes. Multilocular disc pores present singly or in pairs on segments V−VII, sometimes associated with a minute oral collar tubular duct. Trilocular pores evenly distributed. Oral collar tubular ducts of 2 sizes: large ducts each with an associated minute duct, occasionally 2 large and 1 minute duct forming a group, present in transverse rows across head, thorax and abdominal segments.

Venter with long, slender flagellate setae near midline; submarginal setae short and lanceolate. Multilocular disc pores each with 10 loculi, present on margins of metathorax, submargins of abdominal segments, and in transverse rows across abdominal segments II−VIII. Quinquelocular pores few, near mouthparts only. Trilocular pores evenly distributed. Oral collar ducts of 2 sizes, each large duct associated with a minute duct, occasionally with 2 large and 1 minute duct grouped together; present on submargin of head, thorax and 4 anteriormost abdominal segments.

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Distribution: Erimococcus talhouki has been recorded from Afghanistan, Iran and Saudi Arabia in the Palaearctic Region ( García Morales et al. 2016); in Iran, it is known from Khouzestan and Yazd provinces ( Asadeh & Mossadegh 1993a, Moghaddam 2009a).

Host-plants: The species has been recorded on host-plants in two genera belonging to the families Fabaceae and Moraceae ( García Morales et al. 2016) ; in Iran, it has been found on Prosopis farcta (Fabaceae) and Morus alba (Moraceae) ( Moghaddam 2013b).

Economic importance: None.

Natural enemies: None recorded in Iran.

Comments: The accompanying illustration is reproduced from Matile-Ferrero (1984), page 226, Fig. 2 , with kind permission from the author and the Editor of Fauna of Arabia.

Genus EURYCOCCUS Ferris

Eurycoccus Ferris, 1950 b: 81 . Pseudococcus jessica Hollinger by original designation.

Principal characters: Slide-mounted adult female broadly oval. Anal lobes moderately developed, each ventral surface lacking an anal lobe bar. Antennae each with 6‒9 segments. Legs well developed, claw without a denticle. Cerarii either absent entirely or represented by a single pair on anal lobes only. Circulus present or absent. Both pairs of ostioles present. Multilocular disc pores present on venter. Oral rim tubular ducts absent. Oral collar tubular ducts present on venter or absent entirely. Anal ring complete, bearing 6 or more setae.

Comments: Worldwide, ten species are included in Eurycoccus ( García Morales et al. 2016) ; one species is known from Iran ( Moghaddam 2009a).

Figures

FIGURE 2. Adult female of Antonina crawi Cockerell.

FIGURE 19. Adult female of Erimococcus talhouki (Matile-Ferrero), reprinted from Matile-Ferrero (1984).

FIGURE 67. Maps of species distributions in Iran.A. Dysmicoccus brevipes (Cockerell); B. Dysmicoccus caspianensis Moghaddam; C. Dysmicoccus walkeri (Newstead); D. Dysmicoccus zagrosicus Moghaddam; E. Erimococcus kimmericus (Kiritshenko); F. Erimococcus talhouki (Matile-Ferrero); G. Eurycoccus tamariscus Williams; H. Exallomochlus balouchestanensis Moghaddam; I. Ferrisia virgata (Cockerell); J. Formicococcus robustus (Ezzat & McConnell); K. Kiritshenkella sacchari (Green); L. Maconellicoccus hirsutus (Green).