Phenacoccus pumilus 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 : 98-101

Phenacoccus pumilus Kiritshenko

( Fig. 43 , distribution map Fig. 69 F )

Phenacoccus pumilus Kiritshenko, 1936: 314 . Phenacoccus latus Kiritshenko, 1936: 132 . Phenacoccus pseudopumilus Hadzibejli, 1960a: 62 . Phenacoccus eurotiae Danzig, 1975: 52 .

Phenacoccus rehacekii Săvescu, 1984: 151 .

Field characteristics: Body of live adult female oval, 1.0‒ 3.7 mm long, pink or yellow, covered with fine white powdery wax ( Kosztarab & Kozár 1988; Danzig & Gavrilov 2014).

Microscopic diagnosis: Slide-mounted adult female broadly oval. Anal lobes moderately developed. Antennae normally each with 9 segments. Legs normal; hind leg without translucent pores; claw with a denticle; tarsal digitules pointed at tip and shorter than claw. Cerarii numbering 4 pairs, 2 on head and 2 on posterior of abdomen. Anal lobe cerarii each containing 2 enlarged lanceolate setae, 1 small seta and 6–8 trilocular pores; penultimate cerarii (C 17) each with 2 lanceolate setae and 3 or 5 trilocular pores; ocular pair (C 3) with 3 lanceolate setae; and frontal cerarii (C 1) with 2 setae. Circulus absent. Ostioles well developed. Anal ring with 3 rows of pores and 6 setae.

Dorsum with lanceolate setae, some minute setae present also. Multilocular disc pores present across posterior edges of abdominal segments IV‒VII, and laterally on segments II and III. Trilocular pores and minute discoidal pores scattered throughout. Oral collar tubular ducts all same size, present across head, thorax and abdominal segments.

Venter with normal flagellate setae; short, lanceolate setae present around margins. Multilocular disc pores each with 10 loculi, present across posterior edges of abdominal segments II ‒ VI, posterior and anterior edges of segment VII, and posterior to vulva. Quinquelocular pores present in small numbers around mouthparts. Trilocular pores and minute discoidal pores scattered throughout. Oral collar tubular ducts of 2 sizes: larger type, same as those on dorsum, scattered on thorax and margins of abdominal segments; smaller type present medially on posterior abdominal segments .

Distribution: Phenacoccus pumilus is known from 19 countries in the Palaearctic Region including Iran ( García Morales et al. 2016), where it has been recorded from Bushehr, Markazi, Sistan & Balouchestan and Yazd provinces ( Moghaddam 2013b).

Host-plants: This species has been found on host-plants in 79 genera belonging to 18 families ( García Morales et al. 2016). In Iran, it has been recorded on Asteraceae : Centaurea virgata ; Brassicaceae : Descurainia sophia and Lepidium latifolium ; Fabaceae : Alhagi camelorum ; and Geraniaceae : Erodium sp. ( Moghaddam 2013b) .

Economic importance: None.

Natural enemies: None recorded.

Comments: The accompanying illustration is reproduced from Moghaddam (2013a), page 58, Fig. 31 , with kind permission from the Chief Editor of Zootaxa.

Figures

FIGURE 31. Adult female of Peliococcus chersonensis (Kiritshenko).

FIGURE 43. Adult female of Phenacoccus pumilus Kiritshenko. © 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).