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Center for Systematic Entomology, Gainesville, Florida
Insecta Mundi
University of Nebraska - Lincoln Year
First record of the agave snout weevil,
Scyphophorus acupunctatus Gyllenhal
(Coleoptera: Curculionidae:
Dryophthorinae), in Puerto Rico
Gregory P. Setliff∗Jesse A. Anderson†
∗Kutztown University of Pennsylvania, setliff@kutztown.edu
†Kutztown University of Pennsylvania
This paper is posted at DigitalCommons@University of Nebraska - Lincoln.
http://digitalcommons.unl.edu/insectamundi/671
CENTER FOR SYSTEMATIC E NTOMOLOGY, INC., Gainesville, FL
First record of the agave snout weevil, Scyphophorus acupunctatus
Gyllenhal (Coleoptera: Curculionidae: Dryophthorinae), in Puerto Rico
Gregory P. Setliff and Jesse A. Anderson
Department of Biology
Kutztown University of Pennsylvania
Kutztown, Pennsylvania 19530 U.S.A.
Date of Issue: March 11, 2011
INSECTA
MUNDI A Journal of World Insect Systematics
0152
Gregory P. Setliff and Jesse A. Anderson
First record of the agave snout weevil, Scyphophorus acupunctatus Gyllenhal (Co-
leoptera: Curculionidae: Dryophthorinae), in Puerto Rico
Insecta Mundi 0152: 1-3
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1
0152: 1-3 2011
First record of the agave snout weevil, Scyphophorus acupunctatus
Gyllenhal (Coleoptera: Curculionidae: Dryophthorinae), in Puerto Rico
Gregory P. Setliff and Jesse A. Anderson
Department of Biology
Kutztown University of Pennsylvania
Kutztown, Pennsylvania 19530 U.S.A.
setliff@kutztown.edu
Abstract. The agave snout weevil, Scyphophorus acupunctatus Gyllenhal (Coleoptera: Curculionidae: Dryophthorinae),
is reported from Puerto Rico for the first time. It was collected on feral sisal, Agave sisalana Perrine (Agavaceae), in
the Guánica Dry Forest Reserve in the southwestern part of the island.
Introduction
Scyphophorus acupunctatus Gyllenhal, 1838 (Fig. 1), is a major pest of several ornamental and
commercially important species of Agave (Agavaceae) (Vaurie 1971). Adults feed on the leaves and bore
into the bole of the plant to oviposit. Larvae also induce rotting in plant tissues by transmitting associated
microbes that can cause premature death of the host (Warring and Smith 1986). Originally from the New
World, S. acupunctatus has expanded its range considerably; undoubtedly aided by human mediated
dispersal of its host plants (Warring and Smith 1986). It is currently known to occur in Australia, Brazil,
Borneo (country not specified), Colombia, Costa Rica, Cuba, El Salvador, Dominican Republic, Guate-
mala, Haiti, Honduras, Indonesia (Java), Jamaica, Kenya, Mexico, Nicaragua, Tanzania, United States
(including Hawaii), and Venezuela (Vaurie 1971, O’Brien and Wibmer 1982, Anderson 2002). It has also
recently been discovered in Italy (Sicily), Spain, and France (Colombo 2000, Flinch and Alonso-Zarazaga
2007, and Germain et al. 2008 respectively); however it is not yet clear that these European records
represent established populations.
Discussion
On 20 July 2009, nine adult specimens of S. acupunctatus (2 males, 7 females) were hand-collected at
night from feral sisal plants (Agave sisalina Perrine) (Fig. 2A) in the Guánica Dry Forest Reserve in
southwestern Puerto Rico (Fig. 2B, 2C). The collection locality (N 17o57.51’; W 66o51.71’) is approximately
0.2 km north of a trailhead located on Rt. 333 at km marker 8.8. All of the weevils were actively feeding
near the base of large, apparently healthy, nonblooming plants. Extensive feeding damage was observed
on the leaves of nearly all mature plants in the area but we found no boring damage on the boles. No
attempt was made to determine whether larvae were present and the plants were otherwise left undis-
turbed.
Sisal was introduced to Puerto Rico for cultivation as a fiber plant more than a century ago (Cook and
Collins 1903), yet our collection of S. acupunctatus is, to our knowledge, the first recorded for the island.
Searches of collections in the National Museum of Natural History, Washington D.C. (USNM), Univer-
sity of Puerto Rico Mayagüez (UPRM), Canadian Museum of Nature, Ottawa (CMNC), and Charles W.
O’Brien personal collection, Green Valley, Arizona (CWOB) revealed no additional specimens from Puerto
Rico. The lack of any prior published records of S. acupunctatus in Puerto Rico suggests that its presence
in Puerto Rico is relatively recent or has not been previously recognized. Voucher specimens have been
deposited in the UPRM and USNM collections.
Acknowledgments
We thank Nico Franz (UPRM) and the other members of the Franz lab for hosting our visit to Puerto
Rico. We would also like to thank Robert Anderson (CMNC) and Charlie O’Brien (CWOB) for kindly
checking their respective collections for Puerto Rican specimens of S. acupunctatus. Steven Lingafelter
2 • I NSECTA MUNDI 0152, March 2011 SETLIFF AND ANDERSON
Figure 2. A) Sisal plants (Agave sisalana Perrine) infested with S. acupunctatus at Guánica, Puerto
Rico. B) Guánica, dry forest habitat where S. acupunctatus was collected. C) Map of Puerto Rico with
location of Guánica indicated.
Figure 1. Scyphophorus acupunctatus Gyllenhal, female, lateral view. Scale bar = 5 mm.
INSECTA MUNDI 0152, March 2011 • 3
SCYPHOPHORUS ACUPUNCTATUS IN PUERTO R ICO
(USNM) and Robert Anderson (CMNC) reviewed this manuscript and provided helpful feedback. Our
research was supported by a Pennsylvania State System of Higher Education Faculty Development Grant.
Literature Cited
Anderson, R. S. 2002. The Dryophthoridae of Costa Rica and Panama: Checklist with keys, new syn-
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(Coleoptera; Curculionoidea). Zootaxa 80: 1-94.
Colombo, M. 2000. Scyphophorus acupunctatus (Coleoptera Curculionidae): prima segnalazione per
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Flinch, J. M., and M. A. Alonso-Zarazaga. 2007. El picudo negro de la pita o agave, o max del
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Received October 10, 2010; Accepted December 21, 2010.
4 • I NSECTA MUNDI 0152, March 2011 SETLIFF AND ANDERSON