Valid Names Results

Rhizococcus thymelaeae (Newstead, 1897) (Eriococcidae: Rhizococcus)

Nomenclatural History

• Eriococcus thymelaeae Newstead 1897a: 102-103. Type data: ALGERIA: Constantine, on the slopes of Mansourah, near Depot des fourrages of the Chasseurs d'Afrique, on Thymelaea hirsuta, 28/10/1895, by A.E. Eaton. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
• Nidularia thyeae (Newstead, 1897); Lindinger 1933a: 117. misspelling of species epithet Notes: This change was also a change in combination.
• Nidularia thymelaeae (Newstead, 1897); Lindinger 1935: 135. change of combination
• Eriococcus tucurincae madeirensis Balachowsky 1939: 267-270. Type data: MADEIRA ISLANDS: Paulo de Serra, on Thymus caespititius, ?/08/1936, by Balachowsky; Désertas Islands, Grande Désertas, on Silene gallica, ?/08/1936, by A. Balachowsky. Syntypes, female, Type depository: Paris: Museum National d'Histoire naturelle, France; junior synonym (discovered by KozarKaKo2013, 562). Notes: There are three slides with seven syntype specimens from Paulo de Serra and seven slides with twenty-five syntype specimens from Grande Désertas. The slide mounted specimens indicate that the host from Grande Désertas is Silene maritima (Matile-Ferrero, personal communication, November 20, 1996). A second MNHN number is 4958.
• Nidularia henryi; Lindinger 1943b: 223. incorrect synonymy (discovered by Hoy1963, 101).
• Eriococcus madeirensis Balachowsky, 1939; Balachowsky 1946: 215. change in status (level)
• Acanthococcus madeirensis (Balachowsky, 1939); Kozár & Walter 1985: 74. change of combination
• Acanthococcus thymelaeae (Newstead, 1897); Kozár & Walter 1985: 74. change of combination
• Rhizococcus thymelaeae (Newstead, 1897); Kozár, Kaydan, Konczné Benedicty & Szita 2013: 562-565. change of combination
• Rhizococcus thymalaeae (Newstead, 1897); Szita, et al. 2022: 2. misspelling of species epithet

Common Names

Ecological Associates

Hosts:

Families: 6 | Genera: 6

Geographic Distribution

Keys

• KozarKaKo2013: pp.392-396 ( Adult (F) ) [Key to species of Rhizococcux]
• HodgsoTr2008: pp.36-37 ( Adult (F) ) [Key for separation of adult female Eriococcida on Qurcus sp. in wstrn Palaearctic] Key as: Eriococcus thymelaeae

Remarks

• Systematics: Slide-mounted adult female with: enlarged setae conical, sides straight, apices acute, 2 or 3 sizes of setae, abundant over surface (Newstead, 1897a).Slide-mounted adult female with: enlarged setae conical, apices acute, marginal setae slightly larger than other setae on dorsum (Balachowsky, 1939). Lindinger (1943b) incorrectly considered this species as a synonym of Nidularia henryi (Hoy, 1963).
• Structure: Female sac is short, ovate, irregular in form. Adult female is elongate oval (Newstead, 1897a). Adult female is roundly oval, 1.37-2.13 mm long, width 0.83-1.48 mm. Anal lobes sclerotised and well developed; median plate unsclerotised. Dorsum covered in sharply cone-shaped spinose setae; some along margin distinctly larger. Dorsum also with numerous microtubular ducts (of one size) and small microtubular ducts; venter with similar microtubular ducts along margin and 3 sized of macrotubular ducts, largest and median size restricted to near margin, smaller duct medially throughout. Quinquilocular pores abondant on abdomen, less frequent more anteriorly, cruciform pores sparse submarginally on anterior abdominal segments and thorax, but also medially on head. legs relatively well developed; metacoxae and metafemur with minute sclerotised pores. claws with a strong dinticle. antennae 7 segmented; frontal lobes present. (Hodgson & Trencheva, 2008)Sac of female is white (Balachowsky, 1939).
• General Remarks: Most detailed description and illustration by Newstead (1897a).Detailed description and illustration by Balachowsky (1939).

Illustrations

Citations