Vryburgia amaryllidis (Bouché)

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 : 137

Vryburgia amaryllidis (Bouché)

( Fig. 62 , Plate 3 E and F , distribution map Fig. 71 B )

Coccus amaryllidis Bouché, 1837: 99 . Coccus liliacearum Bouché, 1844: 300 . Pseudococcus lounsburyi Brain, 1912: 179 . Trionymus crini Hall, 1923: 11 . Pseudococcus (Trionymus) peregrinus Green, 1925: 40 . Chorizococcus microporus McKenzie, 1960: 699 .

Field characteristics: Found on leaves, particularly where they are folded or overlap. Body of live adult female dark purple, covered with a thin layer of powdery white wax and with 2 pairs of white caudal wax filaments, of which the apical pair is longest and thickest. At maturity, female produces a large ovisac that covers the entire body, containing pink eggs.

Microscopic diagnosis: Adult female elongate oval, more-or-less parallel-sided. Anal lobes well developed. Antennae each with 8 segments. Legs well developed; hind leg with translucent pores numerous on femur and tibia; tarsal digitules clubbed at tip and longer than claw. Cerarii present only on posteriormost 2 abdominal segments. Anal lobe cerarii each with 2 enlarged conical setae, 3–5 slender auxiliary setae and a small concentration of trilocular pores; penultimate cerarii (C 17) each with 2 slightly smaller conical setae, normally without slender auxiliary setae although rarely with 1 or 2 such setae. Circulus absent. Ostioles well developed.

Dorsum with slender setae. Multilocular disc pores absent. Trilocular pores evenly dispersed. Discoidal pores minute, sparse. Oral rim tubular ducts present on each abdominal segment in a single transverse row and scattered in small numbers over head and thorax. Dorsal oral collar tubular ducts numerous across most abdominal segments.

Venter with slender setae, a little longer than those on dorsum. Multilocular disc pores present in midregions of abdominal segments II–V, occasionally also in lateral areas. Trilocular pores evenly dispersed. Discoidal pores minute, sparse. Oral rim tubular ducts present along lateral areas of most abdominal segments and in a cluster in each lateral area on meso- and metathorax. Oral collar ducts abundant in midregion of posterior abdominal segments as far forward as segment IV, and in lateral regions forward to head.

Distribution: Vryburgia amaryllidis has been recorded from 15 countries in the Afrotropical, Australasian, Nearctic, Oriental and Palaearctic Regions including Iran ( García Morales et al. 2016), where it has been found in Fars province ( Farahbakhsh 1961).

Host-plants: The species has been recorded on host-plants in 21 genera belonging to seven families ( García Morales et al. 2016). In Iran, it has been found on Amaryllis sp. (Amaryllidaceae) ( Farahbakhsh 1961).

Economic importance: None.

Natural enemies: None recorded in Iran.

Comments: The accompanying illustration has been modified from the illustration by Ferris in Zimmerman (1948), pages 262 and 263, Fig. 140.

Figures

PLATE 3.A. Pseudococcus viburni (Signoret); B. Trabutina crassispinosa Borchsenius; C. Trabutina mannipara (Hemprich & Ehrenberg); D. Trabutina serpentina (Green); E. Vryburgia amaryllidis (Bouché); F. V. amaryllidis damage on Amaryllis sp. (Amaryllidaceae).

FIGURE 62. Adult female of Vryburgia amaryllidis (Bouché).

FIGURE 71. Maps of species distributions in Iran. A. Vryburgia amaryllidis (Bouché); B. Vryburgia succulentarum Williams; C. Rhizoecus albidus Goux; D. Puto superbus (Leonardi).