Cook Islands Biodiversity Database

Species Page

Back to: «« Search Page | « Results Page

Add to My List

Rhyzopertha dominica

Lesser Grain-borer

Multimedia & Additional Resources

Sorry, there are no multimedia or other resources available for this species yet.

General Information

COMMON NAMES: Lesser Grain-borer

GLOBAL DISTRIBUTION: circumtroprical and subtropical

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; S.Group; Land, in stored foods

SIGNIFICANCE LIST: ; in stored foods

KEY FEATURES: To 4mm TL. Dark brown. Thick cylinderical body; wing-covers with punctures and short hairs; head beneath the thorax-shield. LARVAE white and parallel sided, with legs.

SIMILAR SPECIES: Dinoderus spp. and Prostephanus truncatus - separated by experts.

Enlarged Image of 'Rhyzopertha dominica'

Cook Islands Distribution

View Distribution Map

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

Northern Group:
TN	MH	RK	PK	NS	SW

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Rhyzopertha dominica (Fabricius)
TAXONOMY: ANIMALIA; ARTHROPODA; ATELOCERATA; HEXAPODA; INSECTA; PTERYGOTA; Coleoptera; BOSTRICHIDAE

More Information

SIGNIFICANCE NOTES -
NEGATIVE SIGNIFICANCE: in stored foods. Comments: Adults and larvae bore into a wide range of commodities, espeically shole grains, including rough rice.

Vouchers & References

Vouchers:
Rarotonga: specimens, in pasta CITC, 7/2000, Maja Poeschko.

References:
None recorded.

Data Update History (information):
zB02, zD02

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
Please refer to our use policy.

Biodiversity Database: More Options | Help

My List: View List | Edit List | Clear List