Valid Names Results

Tachardiella argentina (Dominguez, 1906) (Tachardiidae (= Kerriidae): Tachardiella)

Nomenclatural History

• Tachardia argentina Dominguez 1906: 219. Type data: ARGENTINA: Cordoba Province, in the surroundings of Totoral, on south-eastern slope of hill which borders the mill of this locality, on Tusca, Acacia cavenia.. Syntypes, female, accepted valid name Notes: Depository of type material unknown. LECTOTYPE: Adult female, designated in Kondo & Gullan (2011), 1 slide (1 specimen) (BME Type # 1788). ARGENTINA, Province of Córdoba, date not given, coll. Dominguez, ex Acacia caven, slide mounted by PJG in 2004 from dry material labeled: "Tachardiella argentina (Domínguez) / on Acacia cavenia Hook. & Arn. / Province of Córdoba / Domínguez coll. -Lizer y Trelles leg.".
• Tachardiella argentina (Dominguez, 1906); MacGillivray 1921: 154. Type depository: Davis: The Bohart Museum of Entomology, University of California, California, USA; change of combination

Common Names

• Insecto laca de la Tusca KondoGu2011
• Tusca lac insect KondoGu2011

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• KondoGu2011: pp.347-350 ( Adult (F) ) [Key Based on Adult Females to Separate Species of the Family Kerriidae Known to Occur in the New World]

Remarks

• Systematics: The adult female most closely resembles that of T. palobrea.
• Structure: Dominguez (1906) studied and analyzed the chemical composition of the lac excreted by this species from a collection made on tusca trees, Acacia cavenia (now A. caven). He stated that the lac formed masses of a resinous aspect, of a deep red color; individual insects were more or less voluminous, round or ovoid in shape, 5-8 mm in diameter, 2.5-3.0 mm thick, with a smooth, convex surface, interiorly flattened in the form of a crude crust, 4-5 mm thick, which often wraped a branch. The resinous mass made up from the fusion of numerous individuals was rugose, unequal, covered in nipples which correspond to the cells of the individual insects that remain underneath; some individuals are in contact with the exterior throughout the year through small orifices, whereas in others the orifices are much smaller, or missing. The material of which constitutes this product is odorless, without flavor, denser than water, hard and easily breakable, but difficult to pulverise. Adult females oval to elongate oval with the margin 6-lobed in youngest specimens, becoming 3 lobed in older individuals. (Kondo & Gullan, 2011)
• General Remarks: Description of adult female by Dominguez (1906). Redescription, illustration and photograph in Kondo & Gullan, 2011.

Illustrations

Citations