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red palm weevil

Scientific Name
Rhynchophorus ferrugineus
Scientific Author
(Olivier, 1790)
Taxonomy
(Coleoptera: Curculionidae: Rhynchophorinae)
Status
Exotic species - absent from Australia
Reliability
High
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Diagnostic Images

Antenna Image
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Caption
San Jose, Leyte, P. I., 18 January 1945, Col. & pres. by Eugene Ray
Source
Clare McLellan Museum Victoria
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Diagnostic Images (10)
Diagnostic Notes
Description:

Ferrugineous to black, legs paler, elytra shining or dull, slightly pubescent, black spots on pronotum extremely variable. Antennal insertions subbasal, scrobes deep, broad and widely opened ventrally, scape longer than funicle and club combined, equal to half length of rostrum, with funicular segments thick, conical, club large, broadly triangular, usually ferrugineous with 8 to 15 setae on inner side of spongy area. Rostrum in males almost four fifths length of pronotum. In females longer, slender, more cyclindrical; straight in profile, broad at base, apex not grooved, with dense, erect setae, at least subapically in males only, but not reaching scrobes, dorsal surface variously sculptured, ventrally very finely punctured, ventral space between antennal scrobes strongly narrowing posteriorly, gular suture with elongate-oval shape before narrowing to base. Submentum truncately concave with narrowly elongate, median depression, extending throughout its length. Mandibles tridentate distally, all teeth sharply pointed, apical and subapical teeth widely separated. Frons narrower than rostrum at base. Pronotum abruptly constricted anterolateraly, posterior margin broadly rounded. Scutellum one-quarter to one fifth elytral length, somewhat pointed posteriorly. Elytra smooth or with slight velvety pubescence, punctures along outer edges, with five deep striae and traces of four laterally. Procoxae strongly globose, widely separated, mesocoxae covered with soft, reddish-brown setae, pro- and mesofemora not strongly curved ventrally, with setae on ventral side of profemora in males only, tarsi pseudotetramerous, first segment twice as long as second, third with broad, median patch and lateral row of reddish-brown setae, fifth segment as long as first four combined, with nine to twelve setae ventrally. First abdominal sternite as long as third and fourth combined, but much shorter than second, sparsely punctures medially, strongly punctures laterally, fifth segment strongly punctured dorsolaterally, pygidium sparsely and minutely punctured posteriorly and dorsolaterally.

Source: Booth RG, Cox ML, Madge RB, 1990. IIE guides to insects of importance to man. 3. Coleoptera. Wallingford, UK: CAB International.

More Information
Specimen Contact
Museum Victoria
Author
McCaffrey, Sarah & Ken Walker
Created
19/04/2012 02:14 AEST
Last Updated
23/04/2012 15:35 AEST
Citation
McCaffrey, Sarah & Ken Walker (2012) red palm weevil (Rhynchophorus ferrugineus) Updated on 4/23/2012 3:35:53 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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