Valid Names Results

Lobimargo Hardy & Gullan, 2011 (Eriococcidae)

Nomenclatural History

• Lobimargo Hardy & Gullan 2011: 516. Type species: Lobimargo sagittisetus Hardy & Beardsley by original designation . accepted valid name

Remarks

• Systematics: Live adult females of Lobimargo resemble large flattish mealybugs (Pseudococcidae), and can easily be mistaken for mealybugs of Eucalyptococcus Williams that live under eucalypt bark. Females of Lobimargo feed exposed on leaf or twig surfaces, or hidden under bark, and none are known to develop within leaf or twig galls. Three of the seven species have been collected only under bark; one has been collected both from under bark and beaten from the foliage; and four have been collected from the surface of stems or leaves. Mature adult females may move under bark for oviposition, as has been observed for Lachnodius eucalypti (Maskell) (J.W. Beardsley, unpublished data). Thus, it is possible that species known only from adult females under bark, may feed at an earlier stage of development on young stems or foliage in parts of the tree more inaccessible to the casual collector. However, the second-instar females of Lobimargo hirtus have been collected under bark along with adult females, which indicates that feeding under bark may occur in at least some species. (Hardy, et al., 2011)
• Structure: Adult females share the following features: (i) body 1.4-14.8 mm long; (ii) body margin distinctly lobate and typically with a marginal fringe of robust to spine-like setae; (iii) anal opening ventral; (iv) anal ring bearing numerous (.12) setae (between six and eight anal ring setae are typical of most other eriococcids), each of which has a ring of small pores surrounding the base; and (v) dorsum and venter with a complex assemblage of macrotubular ducts. Four species are further distinguished by the presence of a small cluster of loculate pores dorsomarginally between the metathorax and abdominal segment I. Another three species are unique in having BMTDs, and one species has fan-shaped dorsal setae that are unique among described felt scale insects. Five of the seven species have sagittate dorsal setae, and six of the seven have a distinct marginal fringe of enlarged setae
• General Remarks: Detailed description and illustration in Hardy, et al., 2011)

Keys

• Hodgso2020: pp.19-22 ( Adult (M) ) [Neococcoid higher taxa]

Associated References

• HardyBeGu2011: description, distribution, host, illustration, structure, taxonomy, pp. 506-507
• Hodgso2020: diagnosis, key, male, taxonomy, pp. 20, 91-93

7 Species