Valid Names Results

Atrococcus pacificus (Borchsenius, 1949) (Pseudococcidae: Atrococcus)

Nomenclatural History

• Pseudococcus pacificus Borchsenius 1949: 119. Type data: RUSSIA: Primor'ye Kray, on apple tree. Lectotype, female, by subsequent designation (Danzig1980b,158). Type depository: St. Petersburg: Zoological Museum, Academy of Science, Russia; accepted valid name
• Paracoccus betulae Borchsenius & Kozarzhevskaya 1966: 36. Type data: RUSSIA: Primor'ye Kray, Okeanskoy, on Betula dahurica. Holotype, female, Type depository: St. Petersburg: Zoological Museum, Academy of Science, Russia; junior synonym (discovered by Danzig1980, 158). Illustr.
• Crisicoccus seruratus; Paik 1978: 186. misidentification
• Crisicoccus matsumotoi; Paik 1978: 186. misidentification
• Spilococcus pacificus (Borchsenius, 1949); Danzig 1980: 158. change of combination
• Atrococcus pacificus (Borchsenius, 1949); Tang 1992: 228. change of combination
• Spilococcus pacificus (Borchsenius, 1949); Ben-Dov 1994: 491. revived combination (previously published)
• Atrococcus pacificus (Borchsenius, 1949); Danzig & Gavrilov-Zimin 2015: 270. revived combination (previously published)

Common Names

Ecological Associates

Hosts:

Families: 6 | Genera: 9

Geographic Distribution

Keys

• TanakaKa2022b: pp.570 ( Adult (F) ) [Spilococcus species in South Korea] Key as: Spilococcus pacificus
• ZhangZhPa2020: pp.38-39 ( Adult (F) ) [Pseudococcidae in China]
• DanzigGa2015: pp.228-230 ( Adult (F) ) [Atrococcus species]
• KwonDaPa2003a: pp.410 ( Adult (F) ) [Spilococcus species of Korea] Key as: Spilococcus pacificus
• Wu2000: pp.162-163 ( Adult (F) ) [Atrococcus and related genera] Key as: Atrococcus pacificus
• Danzig1998: pp.119 ( Adult (F) ) [Palaearctic region]
• Tang1992: pp.220 ( Adult (F) ) [Palaearctic & Oriental regions]
• Danzig1980b: pp.158 ( Adult (F) ) [Far East of the U.S.S.R.] Key as: Spilococcus pacificus
• Borchs1949: pp.93 ( Adult (F) ) [Palaearctic region] Key as: Pseudococcus pacificus

Remarks

• Systematics: In South Korea, this species was first reported as “C. matsumotoi” by Paik (1978) and later by Paik (2000), Kwon et al. (2003), and Suh (2020). However, the morphology of the Korean specimens examined in Tanaka & Kamitani (2022b), which were identified by South Korean mealybug experts Suh, S.J. and Park, M.J. as “C. matsumotoi” is quite different from that of the species currently regarded as C. matsumotoi (= Crisicoccus seruratus) in Japan, the native country of the type specimen. The Korean material could be identified as a member of the genus Spilococcus, namely S. pacificus. (Tanaka & Kamitani, 2022b) According to Kaydan & Szita (2017), the species should be transferred either to the genus Maconellicoccus Ezzat or to Paracoccus Ezzat & McConnell, however, none of the type specimens were examined so the species was left in Spilococcus (Atrococcus?). (Tanaka & Kamitani, 2022b
• Structure: Female body orange in life. Antennae 8-segmented. Hind coxae with translucent pores; some specimens also have pores on apical parts of hind femurs and tibiae. Circulus large, almost quadrate. Multilocular pores forming transverse rows and bands on abdominal sternites and occasionally present on ventral surface of cephalothorax. Fungiform ducts present on dorsum only, mainly in marginal and submarginal zones. Tubular ducts with small collar occupying less than 1/4 of duct length, two sized; larger ducts forming groups along margin of ventral surface of prothorax and abdomen and tranverse rows on III-VII abdominal sternites; smaller ducts present in medial zone of abdominal sternites. (Danzig & Gavrilov-Zimin, 2015)
• General Remarks: Description and illustration of adult female by Danzig (1980b) and by Kwon et al. (2003a). Description of adult female by Borchsenius (1949) and by Tang (1992).

Illustrations

Citations