Rhizococcus reynei (Schmutterer)

Moghaddam, Masumeh & Watson, Gillian W., 2024, The Scale Insects Of Iran (Hemiptera: Coccomorpha) Part 3 The Soft Scales (Coccidae) And Other Families, Zootaxa 5542 (1), pp. 1-202 : 134-137

Rhizococcus reynei (Schmutterer)

( Fig. 63 , distribution map Fig. 93G )

Eriococcus reynei Schmutterer, 1952: 414‒417 . Acanthococcus reynei (Schmutterer) ; Schmutterer 1980: 50. Rhizococcus tavignani Pellizzari & Kozár, 2011: 66 . Rhizococcus reynei (Schmutterer) ; Kozár et al. 2013: 528‒532.

Field characteristics: Not noted.

Microscopic diagnosis: Slide-mounted adult female body elongate-oval. Antennae each with 7 segments. Frontal lobes present frontal tubercle absent. Eyes situated on margins. Legs well developed; meso- and metathoracic coxae without spinulae; hind coxa with translucent pores; hind femur without translucent pores; tibiae each with 5 setae (median seta present); tarsal and claw digitules knobbed apically, all slightly longer than claw; claw with a denticle near apex. Anal lobes slightly sclerotized, each with 2 enlarged setae along inner margin and 1 on outer margin; apical seta broken on all available specimens. Anal ring with pores and 8 setae. Cauda sclerotized.

Dorsum with enlarged setae spine-like, varying in size and shape, with tips relatively blunt, numbering 2 on margin of each thoracic segment, but usually with 3 on each abdominal segment. Smaller enlarged setae forming sparse transverse rows across middle parts of segments; submargin without enlarged setae. Macrotubular ducts of 2 sizes: (i) larger type on marginal area; and (ii) narrower type scattered throughout, including margins. sparse throughout. Microtubular ducts scattered throughout.

Venter with hair-like setae in median area and with a marginal row of enlarged setae and a few smaller setae present submarginally. Quinquelocular pores forming sparse bands and rows across all segments. Macrotubular ducts of 2 sizes similar to those on dorsum; larger size present along margin, smaller size present in medial and submarginal areas. Microtubular ducts sparsely present on prosomal submargins. Cruciform pores very few, scattered in a submarginal band and on middle of head.

Distribution: Rhizococcus reynei is known from 11 Palaearctic countries ( García Morales et al. 2016); in Iran, it was collected from Ghazvin province ( Moghaddam 2013).

Host-plants: The scale has been recorded on host-plants belonging to three genera in the families Euphorbiaceae , Lamiaceae and Poaceae ( García Morales et al. 2016) ; in Iran, it was found on Thymus vulgaris ( Lamiaceae ) ( Moghaddam 2013).

Economic importance: Not known as a pest in Iran.

Natural enemies: None recorded in Iran.

Figures

FIGURE 63. Adult female of Rhizococcus reynei (Schmutterer); apical setae on anal lobes broken off. Reproduced from Kozár et al. (2013), page 529, fig. 186, published by the Hungarian Academy of Sciences, Budapest, Hungary.

FIGURE 93. Distribution maps of scale insect species in Iran covered in this work. A, Pulvinaria urbicola Cockerell; B, Pulvinaria vitis (Linnaeus); C, Rhizococcus asperulae Moghaddam; D, Rhizococcus avicennae Moghaddam; E, Rhizococcus borchsenii Danzig; F, Rhizococcus istresianus (Goux); G, Rhizococcus reynei (Schmutterer); H, Rhizococcus saxidesertus (Borchsenius); I, Rhizopulvinaria artemisiae (Signoret); J, Rhizopulvinaria turkestanica (Archangelskaya); K, Saissetia coffeae (Walker); L, Saissetia miranda (Cockerell & Parrott); M, Saissetia oleae (Olivier); N, Sphaerolecanium prunastri (Boyer de Fonscolombe); O, Stotzia ephedrae (Newstead).