Valid Names Results

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

Nomenclatural History

• Lobimargo brookesae Hardy & Beardsley 2011: 508-510. Type data: AUSTRALIA: South Australia, New Peake Station, [120 km SE of Oodnadatta, 28°14'S, 134°24'E], under bark of Eucalyptus microtheca, 9/3/1976, by P.W. Miles. Holotype, female, by original designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

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

Remarks

• Systematics: Lobimargo brookesae is most similar to L. donaldsoni Both have been collected in Canberra, where they are morphologically distinct. The adult female of both species is large, has only sagittate dorsal setae and the distance along the margin from the eye to the midline is less than one-third the distance from the eye to the anterior edge of the mesothorax (in other related species this ratio would be greater than one-third, which has a significant effect on the gestalt). The adult female of L. brookesae can be distinguished easily from that of L. donaldsoni by having: (i) two size classes of macrotubular ducts on the dorsum (only one size class present in L. donaldsoni ); (ii) BMTDs (absent in L. donaldsoni) and (iii) much longer ventral setae (the longest ventral setae on adult females of L. brookesae are ¡«300 ¦Ìm, compared with ¡«50 ¦Ìm for L. donaldsoni ). BMTDs are also found on the posteroventral abdominal surface of the adult female of L. hirtus and L. rhipidotrichus. The adult female of L. brookesae can be distinguished from those of L. hirtus and L. rhipidotrichus by: (i) sagittate dorsal setae (dorsal setae spinose and extremely numerous on L. hirtus, fan-shaped on L. rhipidotrichus); and (ii) a distinct marginal fringe of enlarged setae with acute apices (fringe indistinct on L. hirtus, marginal setae with truncate-to-blunt apices on L. rhipidotrichus). Adult females of L. brookesae can be further distinguished from those of L. hirtus by the relatively slender setae along the inner margin of the femur and tibia (these setae are stout and spinose one L. hirtus).
• Biology: The adult female has been found feeding in the twig axil, a twig under bark. At New Peake Station, the host plant was recorded as E. microtheca, but this species has been split taxonomically and the correct host is almost certainly the coolabah, E. coolabah.

Illustrations

Citations