Valid Names Results

Targionia haloxyloni Hall, 1926 (Diaspididae: Targionia)

Nomenclatural History

• Targionia haloxyloni Hall 1926a: 27. Type data: EGYPT: Eastern Desert, Wadi Askhar South, Wadi Araba, Wadi Sennur, on Haloxylon schweinfurthii.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
• Targionia haloxyli Hall, 1926; Lindinger 1932f: 198. emendation that is unjustified
• Targionia halophila; Rungs 1934: 275. misidentification (discovered by Rungs1935, 275).

Common Names

• haloxylon scale AbdRabEv2021

Ecological Associates

Hosts:

Families: 5 | Genera: 7

Geographic Distribution

Keys

• MoghadWa2021: pp.228-229 ( Adult (F) ) [Targionia in Iran]
• Danzig1993: pp.221-222 ( Adult (F) ) [Europe]
• Balach1958b: pp.292 ( Adult (F) ) [Africa]
• Ezzat1958: pp.242 ( Adult (F) ) [Egypt]
• Balach1951: pp.634 ( Adult (F) ) [Mediterranean]
• Ferris1943a: pp.94 ( Adult (F) ) [World]

Remarks

• Structure: Hall (1926a) described the scale cover: "Scale of adult female small, irregularly circular, diameter 1.25-1.75 mm; convex; dead white in colour owing to a thick covering of white secretionary matter; first exuvia straw-coloured when denuded and the second pellicle large and black; white secretionary matter is easily knocked off, coming away in one piece and revealing the black nymphal pellicle; ventral scale well developed but usually remaining attached to the host plant. Ferris (1943a) described the scale cover: "The scale of the female is described as being circular, convex, white, with the second exuvia black, ventral scale well developed but remaining attached to the host plant. Scale of the male not described". Slide-mounted adult female with expanded prosoma; prosoma sclerotized at maturity. Pygidium with 4 pairs of lobes; third and fourth lobes (L3 and L4) small, triangular. Median lobes (L1) parallel, each lobe subsymmetric and without notches on margins, but with a well-developed basal sclerosis. Second lobes (L2) triangular. Plates and paraphyses absent. Dorsal ducts numerous, long and filiform, situated in intersegmental scleroses on pygidial segments; ducts absent from segment IV and prepygidial segments. Ventral ducts numerous, similar to those on dorsum, present on prepygidial and pygidial segments. (Moghaddam & Watson, 2021)
• Biology: Described as occurring especially on the subterranean parts of the plant (Ferris, 1943a).
• General Remarks: Description and illustration of adult female by Hall (1926a), Ferris (1943a) and by Balachowsky (1951, 1958b).

Illustrations

Citations