Valid Names Results

Lobimargo sagittisetus Hardy & Beardsley, 2011 (Eriococcidae: Lobimargo)

Nomenclatural History

• Lobimargo sagittisetus Hardy & Beardsley 2011: 520. Type data: AUSTRALIA: Victoria, Lower Plenty, on twig bark of Eucalyptus melliodora, 3/7/1972, by J.W. Beardsley. Holotype, female and first instar, by original designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name Notes: Paratypes: Australia, Victoria, one first-instar nymph, same data as holotype (ANIC); one adult female, DNA voucher NH38, Wilsons Promontory, Telegraph Saddle car park.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• HardyBeGu2011: pp.507-508 ( Adult (F) ) [species of Lobimargo]

Remarks

• Systematics: The adult female of L. sagittisetus is most similar to that of L. latrobeus. The two adult female specimens from more northern localities, i.e. Atherton and the Warrumbungles, differ from southern specimens in a number of features: (i) smaller anal ring (55–60 μm wide in the north compared with 95–115 μm in the south), with fewer ring setae (12–14 in the north and ∼22 in the south); (ii) shorter caudal setae (∼65 μm in the north compared with ∼110 μm in the south); (iii) dorsal macrotubular ducts of different sizes (large ducts ∼27 μm long, with oral rims ∼10 μm wide in the north, as opposed to ∼15 μm long, with oral rims ∼6 μm wide in the south; small ducts ∼5 μm long in the north and ∼8 μm long in the south) and (iv) large dorsal macrotubular ducts of the CMTD type in the north and the SMTD in the south. Beardsley had intended to recognize these northern and southern populations as separate species. Hardy and Gullan chose to recognixe only one species. (Hardy, et al., 2011)
• Structure: Adult females are brown to pinkish-orange, and at least one specimen had two longitudinal darker stripes dorsally. They produce a short, thin, woolly dorsal covering of whitish wax as they age, but no ovisac. (Hardy, et al., 2011) Slide mounted adult female: body outline lobate; length 3.1–4.8 mm, greatest width 1.9–2.8 mm. Eyes 50–60 μm wide. Antennae seven-segmented; length 480–645 μm; with two or three hair-like setae on segment I, two or three hair-like setae on segment II, zero to two hair-like setae on segment III, two hair-like setae on segment IV, one fleshy seta on segment V, two hair-like setae + one fleshy seta on segment VI and six hair-like setae + three fleshy setae on segment VII. (Hardy, et al., 2011) The most striking features of the first-instar nymph of L. sagittisetus are: (i) the closely paired setae on each side of the anal ring; and (ii) the four broad and spatulate anal ring setae. (Hardy, et al., 2011)
• General Remarks: Detailed description and illustration in Hardy, et al., 2011.

Illustrations

Citations