Asterodiaspis minor (Russell)

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 : 24-25

Asterodiaspis minor (Russell)

( Fig. 3 , distribution map Fig. 89A )

Asterolecanium minus Russell, 1941: 132 . Asterodiaspis minus (Russell) ; Tang & Hao 1995: 300. Asterodiaspis minor (Russell) ; Pellizzari & Williams 2013: 406.

Field characters: Adult females live on the bark, in pits. Body of adult female slightly longer than wide or circular, with posterior end slightly produced; greenish yellow to fairly clear yellow.

Microscopic diagnosis: Slide-mounted adult female body slightly longer than wide, with posterior end slightly produced. Antennae globular, each with 2 setae as long as diameter of antenna. Anal lobes not developed. Anal opening situated on dorsal surface, well removed from margin, circular, bearing 2 setae on anterior edge.

Dorsum. Marginal 8-shaped pores present in a single row around body. Dorsal 8-shaped pores absent. Tubular ducts scattered. Minute 8-shaped pores numerous; disc-pores also quite numerous.

Venter. Quinquelocular disc-pores present in a single row on inner ventral edge of marginal 8-shaped pore row. Spiracles each with 4–6 quinquelocular disc-pores outside spiracular opening; spiracular furrow between each spiracle and margin of body containing 25‒50 quinquelocular disc-pores. Multilocular disc-pores numbering fewer than 10, in 3 transverse rows on posterior abdominal segments.

Distribution: Asterodiaspis minor is known from 13 countries in the Nearctic and Palaearctic regions; in Iran ( García Morales et al. 2016), it has been recorded from Fars and Golestan provinces ( Moghaddam 2013).

Host-plants: The species has been recorded only on Quercus spp. ( Fagaceae ) ( García Morales et al. 2016).

Economic importance: None in Iran.

Natural enemies: None recorded in Iran.

Figures

FIGURE 3. Adult female of Asterodiaspis minor (Russell), developed from Russell (1941) page 272, fig. 37.

FIGURE 89. Distribution maps of scale insect species in Iran covered in this work. A, Asterodiaspis minor (Russell); B, Asterodiaspis quercicola (Bouché); C, Bambusaspis bambusae (Boisduval); D, Bodenheimera rachelae (Bodenheimer); E, Ceroplastes floridensis Comstock; F, Ceroplastes rubens Maskell; G, Ceroplastes rusci (Linnaeus); H, Ceroplastes sinensis Del Guercio; I, Coccus hesperidum Linnaeus; J, Coccus pseudomagnoliarum (Kuwana); K, Cryptococcus fagisuga Lindinger; L, Didesmococcus unifasciatus (Archangelskaya).