Phenacoccus poae Moghaddam

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 : 98

Phenacoccus poae Moghaddam

( Fig. 42 , Plate 2 C , distribution map Fig. 69 E )

Phenacoccus poae Moghaddam, 2019: 425 .

Field characteristics: Found on upper leaf surfaces of the host. Body of live adult female oval, covered with thick white powdery wax.

Microscopic diagnosis: Slide-mounted adult female oval to broadly oval. Anal lobes developed.Antennae each with 9 segments. Legs well developed; hind leg with translucent pores apparently present on femur; tarsal and claw digitules all knobbed; claw with a denticle claw digitules pointed at tio and longer than claw. Cerarii numbering 3 or 4 pairs. Anal lobe cerarii each containing 2 lanceolate setae and 6–9 trilocular pores, all situated on a sclerotized area; penultimate cerarii (C 17) with 2 lanceolate setae and 3 or 4 trilocular pores; C 16 with 2 setae and 2 or 3 trilocular pores; head cerarii usually absent, if present then each containing 2 lanceolate setae and 2 trilocular pores. Circulus absent. Ostioles well developed. Anal ring with 3 concentric rows of pores and 6 setae.

Dorsum with slightly lanceolate setae; some minute setae present also. Multilocular disc pores absent. Trilocular pores and minute discoidal pores scattered throughout. Oral collar tubular ducts all same size, scattered across all segments in more-or-less tripple rows, most numerous on anterior abdominal segments, sparser on head and thoracic segments.

Venter with normal flagellate setae, and short lanceolate setae around margins. Multilocular disc pores each with 10 loculi, present at posterior edges of abdominal segments V‒VII, 1 or 2 at posterior of segment IV, on an- terior edges of segment VII and VIII+IX, and sometimes 1 pore present submedially on each side of segment IV. Quinquelocular pores numerous, present medially on head, thorax and segments I‒VIII+IX. Trilocular pores few on submarginal areas, but replaced by quinquelocular pores in median zone. Minute discoidal pores scattered throughout. Oral collar tubular ducts same as those on dorsum, numerous across head, thorax and abdominal segments.

Distribution: The species is recorded only from Iran, Markazi province ( Moghaddam 2019).

Host-plants: This species has been recorded on Poaceae ( Moghaddam 2019) .

Economic importance: None.

Natural enemies: None recorded.

Comments: The accompanying illustration is reproduced from Moghaddam (2019), page 453, Fig. 1 , with kind permission from the Chief Editor of Zootaxa.

Figures

FIGURE 1. Generalised morphology of an adult female mealybug (including two types of ceroris, a structure found only in the family Rhizoecidae). © The Trustees of the Natural History Museum, London, U.K.

PLATE 2. A. Phenacoccus aceris (Signoret); B. Phenacoccus bromi Moghaddam; C. Phenacoccus poae Moghaddam; D. Phenacoccus solenopsis Tinsley; E. Planococcus citri (Risso); F. Planococcus kraunhiae (Kuwana); G. Planococcus vovae (Nasonov); H. Pseudococcus comstocki (Kuwana).

FIGURE 42. Adult female of Phenacoccus poae Moghaddam. © Magnolia Press, www.mapress.com/j/zt, reproduced with the copyright holder’s permission.

FIGURE 69. Maps of species distributions in Iran. A. Phenacoccus bromi Moghaddam; B. Phenacoccus daganiae Bodenheimer; C. Phenacoccus hordei (Lindeman); D. Phenacoccus insularis Danzig; E. Phenacoccus poae Moghaddam; F. Phenacoccus pumilus Kiritshenko; G. Phenacoccus solani Ferris; H. Phenacoccus solenopsis Tinsley; I. Phenacoccus transcaucasicus Hadzibejli; J. Planococcus citri (Risso); K. Planococcus ficus (Signoret); L. Planococcus kraunhiae (Kuwana).