Lobimargo Hardy & Gullan 2011

Hodgson, Chris, 2020, A review of neococcid scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) based on the morphology of the adult males, Zootaxa 4765 (1), pp. 1-264 : 91-93

Lobimargo Hardy & Gullan 2011

Lobimargo Hardy & Gullan in Hardy et al. 2011, 516. Type species: Lobimargo sagittisetus Hardy & Beardsley by original designation.

Introduction. This genus currently includes 6 species, all from mainland Australia restricted to Eucalyptus sp. ( Myrtaceae ) ( Hardy et al. 2011). The adult females feed either exposed on a leaf or under the bark. None are known to induce galls. Only the adult male of L. williamsi Hardy & Gullan have been described to-date ( Fig. 35 )

Generic diagnosis based on adult male morphology of L. williamsi ( Fig. 35 ). Body: abdomen more or less parallel sided; body fairly setose, with both long fs and shorter hs. Head: simple pores present; ocular sclerite with a few reticulations; dorsal mid-cranial ridge well developed; preocular ridge short; genal setae present; antennae 10 segmented; flagellar segments with long fs; capitate setae absent. Thorax: prosternal median ridge present; scutal setae present laterally; scutellum with scutellar setae; postmesospiracular setae present; basisternal setae present; metasternum with frequent setae; metaprecoxal ridge absent; postmetaspiracular setae possibly absent; tibia and tarsi with fleshy setae; tarsi 2 segmented (occasionally appearing fused); claw digitules capitate; claws elongate. Abdomen: glandular pouches present on segment VIII; style broad anteriorly, becoming sharply pointed posteriorly and only a little longer than basal width of segment IX.

Comment. The adult male of L. williamsi is somewhat similar to Stibococcus cerinus but differs in having (i) many long fleshy setae, those on the antennae being much longer than the width of each segment (fleshy setae, if present on S. cerinus , very similar to hair-like setae and sparce, those on the antennae subequal in length to segment width), (ii) no capitate setae on antennae (present on S. cerinus ) and (iii) no caudal extensions on abdominal segment VIII (present).

Figures

FIGURE 35. Lobimargo williamsi Hardy & Gullan. Macropterous adult male (Eriococcidae, Gondwanan group) (after Hardy et al. 2011). For abbreviations, see p. 8.