Heterobostrychus hamatipennis Lesne, an oriental wood borer, is reported to be established in southeast Florida for the first time. This is the second member of the genus Heterobostrychus Lesne that has become established in Florida

Beiriger, Robert

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CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FLHeterobostrychus hamatipennis Lesne(Coleoptera: Bostrichidae)new to FloridaRobert BeirigerInstitute of Food and Agricultural ScienceEverglades Research and Education Center3200 East Palm Beach RoadBelle Glade, Florida 33430Date of Issue: September 24, 2010INSECTAMUNDI A Journal of World Insect Systematics0138Robert BeirigerHeterobostrychus hamatipennis Lesne (Coleoptera: Bostrichidae) new to FloridaInsecta Mundi 0138: 1-5Published in 2010 byCenter for Systematic Entomology, Inc.P. O. Box 141874Gainesville, FL 32614-1874 U. S. A.http://www.centerforsystematicentomology.org/Insecta Mundi is a journal primarily devoted to insect systematics, but articles can be published onany non-marine arthropod taxon. 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This is an open access article distributed under the terms of the CreativeCommons, Attribution Non-Commercial License, which permits unrestricted non-commercial use, distri-bution, and reproduction in any medium, provided the original author(s) and source are credited. http://creativecommons.org/licenses/by-nc/3.0/10138: 1-5 2010Heterobostrychus hamatipennis Lesne (Coleoptera: Bostrichidae) newto FloridaRobert BeirigerInstitute of Food and Agricultural ScienceEverglades Research and Education Center3200 East Palm Beach RoadBelle Glade, Florida 33430papilio@ufl.eduAbstract.  Heterobostrychus hamatipennis Lesne, an oriental wood borer, is reported to be established in southeastFlorida for the first time. This is the second member of the genus Heterobostrychus Lesne that has becomeestablished in Florida.IntroductionThe genus Heterobostrychus Lesne  is composed of six species that inhabit the warmer areas of theOld World (Fisher 1950). Adults of this genus range in size from 10 to 15 mm in length and are character-ized by head deeply inserted into the pronotum and not visible from above; anterior margin of the pronotumstrongly, transversely depressed; posterior coxal cavities completely margined, 3- segmented antennalclub that is not flabellate nor strongly transverse and round sensory depressions.  Heterobostrychusspecies are readily spread by commerce with five species either having been intercepted at various U.S.ports of entry or having later emerged from foreign wood products (Beiriger unpublished data). Two ofthese species have become established in the United States with Heterobostrychus aequalis (Waterhouse)(Fig. 1) established in Florida (Woodruff 1967) and Heterobostrychus brunneus (Murray) (Fig. 2) estab-lished in California (Ivie 2002).It was not surprising then that in 2004, a new Heterobostrychus species was attracted to an alcoholbaited trap set at Archbold Biological Station, Highlands Co., 15 May to 12 June 2004.  Between spring2004 and spring 2006, 3 additional females were collected, in same locality, on the following dates, 15 Mayto 16 June 2005, (1 female) and 30 April to 20 May 2006 (2 females) and all were tentatively identified asHeterobostrychus hamatipennis Lesne (Fig. 3). However, since none of the distinctly armed males wasseen and since this species is listed as probably not established (Peck and Thomas 1998) questions re-mained as to this identification.In July 2007, a light trap sample was sent to me from Monroe County, North Key Largo, 2 July, 2007containing another female H. hamatipennis.  After finding females of this species over a fairly broad area,I decided to place alcohol baited traps at the J. W. Corbett Wildlife Management Area to determine whetherthe species also occurred in Palm Beach County. During the first nine weeks of trapping, four specimensincluding the first male, were collected. Dates of capture were 14-VI-4-VII-2009 (1 female), 4-24-VII-2009(1 male and 1 female), and 24-VII-15-VIII-2009 (1 female).  In spring 2010, six specimens of H. hamatipenniswere collected in Florida, Glades County, Curry Island with the follow collection data: 17-IV-7-V-2010 (4males, 1 female) and 7-21-V-2010 (1 male). Also during this time another male was found in the FloridaState Collection of Arthropods (FSCA) with the collection data: Florida, Broward County, Davie, 28 May2008.  The most recently collected specimen, also in the FSCA, has the data: Florida, Orange County,Orlando, Moss Park, 25-VI-2010. It was collected in an ethanol-baited Lindgren funnel trap. Based onthese collections there seems to be little question that H. hamatipennis is established in southeasternFlorida.Heterobostrychus hamatipennis has a wide host range (Beeson and Bhatia 1936) including the follow-ing plant genera: Acacia, Anogeissus, Bombax, Boswellia, Canarium, Dalbergia, Dendrocalamus, Eugenia,Garuga, Machilus, Mangifera, Mallotus, Quercus, Shorea, Terminalia, and Vatica.  Currently, no larvalhosts have been found in Florida, but Quercus sp. was common in all areas where this beetle has beentrapped.  Heterobostrychus hamatipennis breeds mainly in logs and branch wood and unlike H. aequalisis not a serious pest of lumber and wood products in India (Beeson and Bhatia 1936).  It probably is thistrait that has allowed this species to be unknowingly spread throughout southeastern Florida.2 • INSECTA MUNDI 0138, September 2010 BEIRIGERThe larvae of H. hamatipennis are undescribed and little is known about the life cycle other thanthere is one generation per year with 70% of the emergence in June in India (Beeson and Bhatia 1936).  Insouthern Florida, all specimens have been collected mid April through early August with most specimensemerging May through June.A key to the species of Heterobostrychus that could occur in Florida is presented below.  It is notknown whether a third species of Heterobostrychus, H. brunneus (Murray) is established in Florida.  Ihave seen only one specimen that might have been wild caught in Florida with data: Monroe County, NoName Key, 10 June 1953.  I have seen no more recently collected specimens from Florida.  Based on thisrecord and since females of H. hamatipennis look similar to male and female H. brunneus, this species isincluded in the following key.  Heterobostrychus brunneus feeds mainly on bamboos and if it occurs inFlorida, it should be found in the lower to middle Florida Keys.Key to species of Heterobostrychus that could occur in Florida1. Fronto-clypeal suture obsolete or little apparent (Fig. 4B) .......................................................... 2Figure 1. Male Heterobostrychus aequalis (Waterhouse). A) Dorsal view. B) Lateral view.A BINSECTA MUNDI 0138, September 2010 • 3 HETEROBOSTRYCHUS HAMATIPENNIS IN FLORIDA— Fronto-clypeal suture strongly apparent, especially well marked in middle (Fig. 4A)............................................................................................................................  H. hamatipennis Lesne2(1). Eyes weakly raised posteriorly.  Posterior pronotal angles with one large prominent tubercle.Elytra glabrous. Granules of pronotum flattened and scale-like ...................................................................................................................................................... H. aequalis (Waterhouse)— Eyes strongly raised posteriorly and slightly detached. Posterior angles with weak tubercle. Elytralightly pubescent.  Granules of pronotum rounded on top, not flattened ............................................................................................................................................... H. brunneus (Murray)AcknowledgmentsI wish to thank Donny Moore, Regional Operations Manager, Florida Fish and Wildlife ConservationCommission, for help in obtaining permits for sampling Corbett Wildlife Management Area;  Mark Deyrup,Archbold Biological Station, for permission to sample at ABS; and David Fine for providing trap samplesfrom North Key Largo. A special thanks to Mike Thomas and Paul Skelley, Florida State Collection ofArthropods, for taking the photographs and critical review of this manuscript.Figure 2.  Male Heterobostrychus brunneus (Murray). A) Dorsal view. B) Lateral view.A B4 • INSECTA MUNDI 0138, September 2010 BEIRIGERLiterature CitedBeeson, C. F. C., and B. M. Bhatia. 1936. On the biology of the Bostrychidae (Coleopt.). Indian ForestRecords 2(12): 231-320.Fisher, W. S. 1950. A revision of the North American species of beetles belonging to the family Bostrichidae.United States Department of Agriculture Miscellaneous Publication 698: 1-157.Ivie, M. A. 2002. Bostrichidae. p. 233-244. In: R. H. Arnett, Jr., M. C. Thomas, P. E. Skelley, and J.H.Frank (editors). American Beetles, Vol 2. CRC Press; Boca Raton, FL. xiv+861 p.Peck, S. B., and M. C. Thomas. 1998. A distributional checklist of the beetles (Coleoptera) of Florida.Arthropods of Florida and Neighboring Land Areas 16: 1-180.Woodruff, R. E. 1967. An oriental wood borer, Heterobostrychus aequalis (Waterhouse) recently estab-lished in Florida. Florida Department of Agriculture, Division of Plant Industry, Entomology Circu-lar 58: 1-2Received June 18, 2010; Accepted August 10, 2010Figure 3.  Male Heterobostrychus hamatipennis Lesne. A) Dorsal view. B) Lateral view.A BINSECTA MUNDI 0138, September 2010 • 5 HETEROBOSTRYCHUS HAMATIPENNIS IN FLORIDAFigure 4.  Frontal view of Heterobostrychus spp. A) H.  hamatipennis Lesne with fronto-clypeal suture wellmarked and depressed in middle. B) H. aequalis (Waterhouse) with fronto-clypeal suture obsolete or little apparent.A B6 • INSECTA MUNDI 0138, September 2010 BEIRIGER

Heterobostrychus hamatipennis Lesne (Coleoptera: Bostrichidae) new to Florida

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