Common sawfly vs koala

Hoplocampa brevis compared with Phascolarctos cinereus

Key Differences

• Common sawfly is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Common sawfly	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Mammalia (哺乳類)
Order	Hymenoptera (ハチ目)	Diprotodontia (カンガルー目)
Family	Tenthredinidae	Phascolarctidae (Koalas)
Genus	Hoplocampa	Phascolarctos (Koalas)
Species	Hoplocampa brevis	Phascolarctos cinereus

Evolutionary Relationship

Common sawfly and koala share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Common sawfly

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common sawfly	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Common sawfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (7 countries) and North America (Canada, United States).

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common sawfly

<em>Hoplocampa brevis</em>, the plum sawfly or common sawfly, is a hymenopteran insect in the family Tenthredinidae. The species is distributed across Europe and has been introduced to parts of North America, with records from Canada and the United States, typically in association with commercial plum and cherry orchards. Adults are small, wasp-like insects approximately 4–5 millimeters in length, with pale yellow-brown coloration. Females lay eggs inside flower buds of <em>Prunus</em> species during blossoming, and the hatching larvae burrow into developing fruitlets, feeding on the contents before exiting to pupate in the soil. Larval feeding causes fruitlets to drop prematurely, and infestations can cause economically significant losses in plum and damson production. The species is not currently evaluated on the IUCN Red List. Adults feed on nectar and pollen, and the species typically produces one generation per year, with adults emerging in spring coinciding with the blossoming period of host trees. The larvae are creamy white with a brownish head capsule and produce a distinctive, unpleasant odor when disturbed. Biological traits such as average lifespan, body weight, and detailed non-larval dietary composition remain poorly documented in standardized ecological databases.

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。