Valid Names Results

Acanthococcus spiraeae Borchsenius, 1949 (Eriococcidae: Acanthococcus)

Nomenclatural History

• Acanthococcus spiraeae Borchsenius 1949: 348-349. Type data: GEORGIA: Tiflis (Tbilisi), on Spiraea hypericifolia twigs, 17/07/1934. Lectotype, female, by subsequent designation (Danzig1996b,522). Type depository: St. Petersburg: Zoological Museum, Academy of Science, Russia; accepted valid name Notes: Two paralectotype females on same slide lectotype (Danzig, 1996b). Illustr.
• Nidularia spiraeae (Borchsenius, 1949); Lindinger 1957: 543. change of combination
• Eriococcus spiraeae (Borchsenius, 1949); Hoy 1963: 117. change of combination
• Acanthococcus altaicus Matesova 1967: 1193-1202. Type data: KAZAKHSTAN: Eastern Kazakhstan Oblast, Ubinski Ridge, Kirov District, Orlovka, on Salix sp., 08/06/1961, by Makarov & Matesova. Holotype, female, by original designation Type depository: St. Petersburg: Zoological Museum, Academy of Science, Russia; junior synonym (discovered by GavrilKu2019, 219-223). Notes: Holotype adult female mounted alone on slide, also 4 additional female paratypes on 4 slides (Danzig, personal communication, 1996). Illustr.
• Eriococcus altaicus (Matesova, 1967); Tang & Hao 1995: 455. change of combination
• Acanthococcus spiraeae Borchsenius, 1949; Kozár 2009: 93. revived combination (previously published)
• Acanthococcus altaicus Matesova, 1967; Kozár, Kaydan, Konczné Benedicty & Szita 2013: 87. revived combination (previously published)

Common Names

Ecological Associates

Hosts:

Families: 3 | Genera: 4

Foes:

Families: 1 | Genera: 1

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• GavrilKu2019: pp.223 ( Adult (F) ) [Eriococcidae on Salix]
• KozarKaKo2013: pp.75-77 ( Adult (F) ) [Key to species of Acanthococcus] Key as: Acanthococcus altaicus
• KozarKaKo2013: pp.75-77 ( Adult (F) ) [Key to species of Acanthococcus]
• TangHa1995: pp.451, 648 ( Adult (F) ) [Eriococcus species] Key as: Eriococcus altaicus
• TangHa1995: pp.450, 647 ( Adult (F) ) [Eriococcus species] Key as: Eriococcus spiraeae
• Danzig1988: pp.708 ( Adult (F) ) [Acanthococcus species of the USSR] Key as: Acanthococcus spiraeae
• Mateso1967: pp.1202 ( Adult (F) ) [Acanthococcus species] Key as: Acanthococcus altaicus
• Borchs1949: pp.333 ( Adult (F) ) [Acanthococcus species in the USSR] Key as: Acanthococcus spiraeae

Remarks

• Systematics: Slide-mounted adult female with: enlarged setae conical, sides concave, apices rounded or slightly acute, 2 or 3 sizes of setae, larger setae present along margin, slightly larger than other setae which are scattered over surface; anal lobes heavily sclerotized, with teeth medially (Borchsenius, 1949). Slide-mounted adult female, Acanthococcus altaicus (junior synonym) with: enlarged setae thin, slightly rounded apices, covering dorsum; anal lobes each with 4 enlarged setae (Matesova, 1967). Gavrilov-Zimin & Kurochkin (2019) were unable to find any distinct differences between them. and synonymized the two names.
• Structure: Adult female body is egg-shaped, raspberry in color. Sac is grayish, compact, entirely covering the insect (Borchsenius, 1949). Description of junior synonym, Acanthococcus altaicus: Adult female oval, chestnut colored, covered with white wax powder, 2.2 mm long, 1.5-1.7 mm wide. Ovisac compact, milk-white color, felted with waxy needles. (Kozár, et al., 2013)
• Biology: Lives on branches of host plants. (Kozár, et al., 2013) Lives in crevices on the bark of its host, density was very high. Lays lilac colored eggs in mid June, between 76-116 eggs. Nymphs appear at end of June. Phyloxerina salicis Linnaeus lives in a symbiotic relation with A. altaicus, 80% of egg sacs of the scale was infested with Phyloxerina (Matesova, 1967). The aphid female is about three times smaller than the female of A. spiraeae and located inside, at the end of the shared ovisac. Phenology of both the aphid and the felt scale is very similar and even the oviposition is started at the same time; the eggs of the aphid are smaller and lie in the wax sac just under the eggs of the felt scale. Sometimes two aphid females may present in one ovisac with a female of A. spiraeae, whereas about 19 % of the felt scale females in the population lack symbiotic aphids at all. (Gavrilov & Kurochkin, 2018)
• General Remarks: Most detailed description and illustration by Borchsenius (1949). Detailed description and illustration of the junior synonym, Acanthococcus altaicus, by Matesova (1967) and by Tang & Hao (1995). Redescription and illustration in Kozár, et al., 2013, Gavrilov-Zimin & Kurochkin (2019)..

Illustrations

Citations