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Costelytra giveni is endemic to and found throughout New Zealand. There are, however, similar species found in other countries like Acrossidius tasmaniae, the Tasmanian grass grub found in Tasmania, Australia. Grass grubs prefer altitudes below 1200m, with favored soil types being free-draining loam soils, but they are also found in peaty or ...
Eucalyptus viminalis, commonly known as the manna gum, white gum or ribbon gum, [3] is a species of small to very tall tree that is endemic to south-eastern Australia. It has smooth bark, sometimes with rough bark near the base, lance-shaped to curved adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped or hemispherical fruit.
These grubs live in trees. They can also be found in black wattle trees, and are considered to be the reason why wattles die within 10 to 15 years. The roots of the Acacia kempeana shrub are another source of the grubs. [11] When held, as a defence mechanism, the grubs will secrete a brown liquid. [3]
The grub population consists mainly of first instars in early- to mid-August, second instars by early September, and third instars by mid-September to early October. In frost zones, the grubs feed until November, then move deeper into the soil. In frost-free areas, the larva will feed all winter. Vigorous feeding occurs from March through May.
The larvae, known as "chafer grubs" or "white grubs", hatch four to six weeks after being laid as eggs. They feed on plant roots, for instance potato roots. The grubs develop in the earth for three to four years, in colder climates even five years, and grow continually to a size of about 4–5 cm, before they pupate in early autumn and develop ...
Abantiades atripalpis, also known as bardee (bardy, bardi) grub, rain moth or waikerie, and previously known as Trictena atripalpis, [1] is a moth of the family Hepialidae. It is found in the whole southern half of Australia .
Prior to 2016, the New Zealand grass grub was mischaracterized as C. zealandica. In 2016 Coca-Abia and Romero-Samper found differences in syntype specimens between White's (1846) C. zealandica [4] and Given's (1952) description and revised the species name of the latter to Costelytra giveni after Given. [3] [5]
A scarab beetle grub from Australia. The C-shaped larvae, called grubs, are pale yellow or white. Most adult beetles are nocturnal, although the flower chafers and many leaf chafers are active during the day. The grubs mostly live underground or under debris, so are not exposed to sunlight.