Valid Names Results

Parlatoreopsis chinensis (Marlatt, 1908) (Diaspididae: Parlatoreopsis)

Nomenclatural History

• Parlatoria chinensis Marlatt 1908c: 30-32. Type data: CHINA: Tianjin, on "crab apple" (Malus sp.), 11/10/1901, by C.L. Marlatt. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Illustr.
• Parlatorea chinensis (Marlatt, 1908); Lindinger 1910: 259. change of combination
• Parlatoria chinensis Marlatt, 1908; Sasscer 1919: 135. revived combination (previously published)
• Cryptoparlatoria chinensis (Marlatt, 1908); MacGillivray 1921: 254. change of combination
• Parlatoreopsis chinensis (Marlatt, 1908); Lindinger 1932: 186. change of combination
• Parlatoria (Parlatoreopsis) chinensis Marlatt, 1908; Merrill 1953: 66. change of combination
• Parlatorepsis chinensis; Chou 1985: 244. misspelling of genus name
• Paralepidosaphes chinensis (Marlatt, 1908); Hua 2000: 156. change of combination
• Parlatoreopsis chinensis (Marlatt, 1908); Normark, et al. 2019: 84. revived combination (previously published)

Common Names

• Chinese obscure scale Blicke1965 Borchs1966

Ecological Associates

Hosts:

Families: 25 | Genera: 55

Foes:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• SuhJi2009: pp.1041-1043 ( Adult (F) ) [Key to species of armored scales intercepted on imported plants (slide mounted adult females)]
• MillerDa2005: pp.29-33 ( Adult (F) ) [Field Key to Economic Armored Scales]
• Danzig1993: pp.106 ( Adult (F) ) [Key to species of Parlatoreopsis]
• Chou1985: pp.244 ( Adult (F) ) [Key to species of Parlatoreopsis]
• Paik1978: pp.369 ( Adult (F) ) [Key to species of Parlatoria] Key as: Parlatoria chinensis
• Balach1953g: pp.828 ( Adult (F) ) [Key to species of Parlatoreopsis]
• Kuwana1925: pp.5 ( Adult (F) ) [Key to Japanese species of Parlatoria] Key as: Parlatoria chinensis
• MacGil1921: pp.254 ( ) [Key to species of Cryptoparlatorea] Key as: Cryptoparlatorea chinensis

Remarks

• Systematics: Marlatt (1908c) described Parlatoreopsis chinensis from China on crabapple. P. longispinus was described by Newstead in 1911. Hall (1922) incorrectly synonymized the two species and for quite a few decades the two were treated as such by authors like McKenzie (1945), Bodenheimer (1953) and Lindinger (1932f, 1958). In 1953g, Balachowsky determined the two to be distinct species and for the most part subsequent coccid workers agreed. However, due to the confusion of their validity, some citations for P. longispinus may actually apply to P. chinensis and vice versa. Parlatoreopsis chinensis can be recognized by the lateral cephalothoracic indentations and the clavate pygidial scleroses (Gill, 1997).
• Structure: Median lobes set quite close, leaving a slender space between them, each with the inner margin straight and then divergent for a short length, curving round apically to a long, serrate, oblique outer margin, and with a slender linear sclerosis arising from near each basal angle. 2nd lobes similar to the median in shape, but much smaller. 3rd lobes practically obsolete (Takagi, 1969a).
• Biology: Baker et al. (1943) found a 2:1 male to female ratio. They reported 2 complete generations and a partial third generation in St. Louis, Missouri. Apparently only fertilized second generation females overwintered. Each female produced a total of about 40 eggs which were laid a few at a time and hatched 5 to 12 days after being deposited. The generations were found to overlap. In 1942, eggs were present from April 24 to October 30; first generation crawlers were present from May 1 to July 24; second generation crawlers were present from July 10 to near the end of September; and third generation crawlers appeared in the last half of October. (Miller & Davidson, 2005).
• Economic Importance: Miller & Davidson (1990) list this insect as a pest. Baker et al. (1943) observed a few plants believed to have been killed by this scale. They found "young apple trees where local injury was caused by only a few specimens of the scale. On these trees, bark tissue first became red and then died at the points of infestation." According to Sasscer (1918), the Chinese obscure scale is "apparently a serious pest in China." According to L. Hanning (1981, personal correspondence) "In the Missouri Delta area many plantings of Rose of Sharon are receiving heavy damage from a scale which appears to be P. chinensis." Miller and Davidson (1990) consider this species to be an occasional pest. (Miller & Davidson, 2005).
• General Remarks: Detailed descriptions and illustrations by Ferris (1942) and Takagi (1969a). Moghaddam & Watson (2021) consider the presence of this species in Iran as doubtful.

Illustrations

Citations