General Information

COMMON NAMES: Diamondback-Moth Wasp GLOBAL DISTRIBUTION: NATIVE Europe - India; EXOTIC EXOTIC Australia - NZ, Fiji - Tonga - Cooks COOK ISLANDS STATUS: Introduced - Recent, Naturalised; Land, parasite on garden pest SIGNIFICANCE LIST: Biocontrol - released 1974 KEY FEATURES: Small slender wasp to 6mmBL. HEAD black with large eyes, antennae 4mm. THORAX robust, black. WINGS both clear with solid triangular sector mid-anterior edge, veins brown. ABDOMEN anterior ascending, short, black; posterior long, cylindrical, light brown with some black rings or segments. LEGS yellowish to yellow-brown. SIMILAR SPECIES: Differs from others in having rather cylindrical abdomen.

Cook Islands Distribution

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Southern Group: Present    Makatea:
RR	MG	AT	MK	MT	AK	PL	TK	MN
P

Northern Group:
TN	MH	RK	PK	NS	SW

Diadromus collaris (Gravenhorst)
SYNONYMS: Thyraeella collaris (Gravenhorst); Ischnus collaris Gravenhorst

TAXONOMY: ANIMALIA; ARTHROPODA; ATELOCERATA; HEXAPODA; INSECTA; PTERYGOTA; Hymenoptera; Apocrita; Parasitica; Ichneumonoidea; ICHNEUMONIDAE

SIGNIFICANCE NOTES -
POSITIVE SIGNIFICANCE: Biocontrol - released 1974. Comments: Walker & Deitz 1979: Parasitic on Diamondback Moth (Plutella xylostella). Origin New Zealand, liberated Rarotonga 1974-1975. Known to be established (refer Valentine1975 in Walker & Deitz). (note: Walker & Deitz - unpublished report dated 1977, based on field work 1975).

Vouchers:
Rarotonga: UN-SPEC79;

References:
Special Reference: W&D79

Data Update History (information):
zTX, zB02, zupB03b, zM04a, zD03b

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