Valid Names Results

Opisthoscelis thurgoona Hardy & Gullan, 2010 (Eriococcidae: Opisthoscelis)

Nomenclatural History

• Opisthoscelis thurgoona Hardy & Gullan 2010: 22-25. Type data: AUSTRALIA: New South Wales, 2 km NE of Thurgoona, Ettahogah Rd., on Eucalyptus melliodora, 2/?/2004, by P. Gullan. Holotype, female, by original designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• HardyGu2010: pp.8 ( Adult (F) ) [Key to adult females of species of Opisthoscelis and Tanyscelis]

Remarks

• Systematics: Adult females of O. thurgoona are unusual in having each leg well developed and 7 clearly separate antennal segments. This character, in combination with a ventral anal opening, with a sclerotic anal ring bearing numerous setae, each of which is surrounded at the base by a number of minute pores give the adult female the resemblance of a species of Lachnodius Morphological clues to the relationship between O. thurgoona and the other Opisthocelis species are the presence of macrotubular duct clusters on the dorsum and only 4 fleshy setae on each antenna. O. thurgoona is most similar to O. tuberculata.
• Structure: Gall on leaf. Immature gall (housing yellow nymph with a red dorsal "keel") shallowly conical to hemispherical on orifice side, with gall surface whitish green to reddish; almost hemispherical on opposite side of leaf, tissue reddish green with distinct oil glands on surface. Mature gall with tissue surrounding orifice brown and necrotic.
• Biology: Live eggs are laid in the gall cavity and a pink to orange in colour. whereas newly hatched first-instar nymphs are orange.
• General Remarks: Detailed description, photograph of gall and illustration in Hardy & Gullan, 2010.

Illustrations

Citations