New locality records for Culiseta inornata (Williston) are reported from Big Pine Key, Grassy Key, and No Name Key in Monroe County, Florida. Five specimens were collected in dry ice-baited light traps. An old, previously unrecognized record for Anopheles grabhamii Theobald from Miami, Dade County, Florida, is reported based on specimens found in the Florida State Collection of Arthropods

Hribar, Lawrence J.

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CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FLINSECTAMUNDI A Journal of World Insect SystematicsNew and old mosquito records for extreme southern Florida(Diptera: Culicidae)Lawrence J. HribarFlorida Keys Mosquito Control District506 106th StreetMarathon, Florida 33050 U.S.A.Date of Issue: 25 April 20070005Lawrence J. HribarNew and old mosquito records for extreme southern Florida (Diptera: Culicidae)Insecta Mundi 0005: 1-3Published in 2007 byCenter for Systematic Entomology, Inc.P. O. Box 147100Gainesville, FL 32604-7100 U. S. A.http://www.centerforsystematicentomology.org/Insecta Mundi is a journal primarily devoted to insect systematics, but articles can be publishedon any non-marine arthropod taxon. Manuscripts considered for publication include, but are not limitedto, systematic or taxonomic studies, revisions, nomenclatural changes, faunal studies, book reviews,phylogenetic analyses, biological or behavioral studies, etc. Insecta Mundi is widely distributed, andreferenced or abstracted by several sources including the Zoological Record, CAB Abstracts, etc.As of 2007, Insecta Mundi is published irregularly throughout the year, not as a quarterly issues.As manuscripts are completed they are published and given an individual number. Manuscripts must bepeer reviewed prior to submission, after which they are again reviewed by the editorial board to insurequality. One author of each submitted manuscript must be a current member of the Center for System-atic Entomology.Managing editor: Paul E. Skelley, e-mail: skellep@doacs.state.fl.usProduction editor: Michael C. Thomas, e-mail: thomasm@doacs.state.fl.usPrinted copies deposited in libraries of:CSIRO, Canberra, ACT, AustraliaMuseu de Zoologia, São Paulo, BrazilAgriculture and Agrifood Canada, Ottawa, Ontario, CanadaThe Natural History Museum, London, EnglandMuzeum I Instytut Zoologii Pan, Warsaw, PolandNational Taiwan University, Taipei, TaiwanCalifornia Academy of Sciences, San Francisco, CA, USAFlorida Department of Agriculture and Consumer Services, Gainesville, FL, USAField Museum of Natural History, Chicago, IL, USANational Museum of Natural History, Smithsonian Institution, Washington, DC, USAElectronic copies in PDF format:Printed CD mailed to all members at end of year.Florida Center for Library Automation: purl.fcla.edu/fcla/insectamundiAuthor instructions available on the Insecta Mundi page at:http://www.centerforsystematicentomology.org/insectamundi/ISSN 0749-6737New and old mosquito records for extreme southern Florida(Diptera: Culicidae)Lawrence J. HribarFlorida Keys Mosquito Control District506 106th StreetMarathon, Florida 33050 U.S.A.Abstract:New locality records for Culiseta inornata (Williston) are reported from Big Pine Key, Grassy Key, andNo Name Key in Monroe County, Florida. Five specimens were collected in dry ice-baited light traps. An old,previously unrecognized record for Anopheles grabhamii Theobald from Miami, Dade County, Florida, is reportedbased on specimens found in the Florida State Collection of Arthropods.Key words: Mosquito, Culicidae, Florida Keys, Dade County.IntroductionThe Florida Keys are islands that lie east, south, and southwest of the southernmost tip of the Floridapeninsula within Dade and Monroe counties. The Florida Keys Mosquito Control District has conductedmosquito operations on the larger inhabited islands within Monroe County since the late 1950s. Since1998, surveillance for adult mosquitoes has been a significant component of these operations. Adult sur-veillance is conducted primarily through use of dry ice-baited light traps.During the latter part of December 2004 the Florida Keys experienced exceptionally strong windsblowing from the north. For example, on the 15th of December, average wind speed and direction was 18mph, NNE; and on the 16th, 15 mph, NNE. After this windy period, five adult female Culiseta inornata(Williston) were collected in dry ice-baited light traps, all on the night of 20-21 December 2004. Threespecimens were collected on No Name Key, and one each on Big Pine Key and Grassy Key. The specimenshave been deposited in the Florida State Collection of Arthropods (accession number E2005-840).Culiseta inornata has not been collected very often in the Florida Keys. Pritchard et al. (1949) re-ported a number of specimens taken in a light trap on Stock Island, near Key West. This species was notreported from any other islands in the Florida Keys, nor was it detected in more recent surveys (Hribar2002, Hribar and Vlach 2001). One is tempted to wonder whether the strong winds transported thesespecimens from further north. Not much is known about windborne transport of mosquitoes (Service1980), although Horsfall (1954) observed Aedes vexans (Meigen) transported long distances on a strongcold front, and Hamlyn-Harris (1933) wrote about transport of Ochlerotatus vigilax (Skuse) on winds.Owen (1937) reported that Cs. inornata in Minnesota would migrate a mile or more from its breedinggrounds. The fact that these five specimens were collected in December is consistent with the statementsof Carpenter (1941), Mitchell (1970), and Thibault (1910) that Cs. inornata is a winter mosquito in thesouthern United States. Sellers (1980) discussed the implications of such windborne transport of mosqui-toes on the spread of viral diseases of animals, stating that viral diseases could be repeatedly introducedinto an area due to annual movements of mosquitoes. In regard to West Nile virus, Cs. inornata has beendemonstrated to be an efficient laboratory vector, it has been found naturally infected with the virus, andit may serve a minor role as an enzootic or bridge vector of the virus (Goddard et al. 2002, Turell et al.2005).Darsie et al.(2002) added Anopheles grabhamii Theobald to the fauna of the United States based uponthe collection of a single female in a dry ice-baited light trap on Big Pine Key. Later, Hribar (2005)reported several collections of this species from No Name Key, adjacent to Big Pine Key. During a visit tothe Florida State Collection of Arthropods in January 2005, four female specimens of An. grabhamiicollected in Miami, Dade County, were located. They were in a pinning tray along with material fromPuerto Rico, the United States Virgin Islands, and some specimens with no locality data. The four speci-mens each have two labels on the pins. The top label has the handwritten information, 12-27-56" andMiami, Fla. on the obverse; the reverse has the handwritten notations, BOAC# VP-TBL and Nassau,dir.. No collector is named. A second label contains the identification as An. grabhamii. Examination10005: 1-3 20072 INSECTA MUNDI 0005, April 2007 HRIBARunder a microscope revealed the large broad wing scales diagnostic for this species, as illustrated byDarsie et al. (2002). The notation of Nassau, dir. may indicate that these specimens were collected onboard an aircraft that had flown directly from Nassau in the Bahamas to Miami (the British OverseasAirways Corporation (BOAC) was the British state airline from 1939 until 1974). It would be interestingto know whether this species has been collected since 1956 in Dade County.The transport of mosquitoes via aircraft has been of concern since the early 20th century, and is stillso today. In a recent study, Dobbs and Brodel (2004) found no mosquitoes in 730 cargo aircraft landing atMiami. However, Porter (1957), Evans et al. (1963), and Gratz et al. (2000) have cited numerous paperscontaining reports of mosquitoes collected from aircraft. Hughes (1961) reported data from 13 yearsinspections at seven airports within the continental United States, Hawaii, and Puerto Rico. Anophelesgrabhamii was intercepted 31 times between July 1, 1947, and June 30, 1960. One specimen was collectedalive and the rest were found dead in the aircraft. Unfortunately, the data for collections from the fiveairports in the continental United States are lumped, so it is not possible to determine how many of thecollections were made at the Miami airport. Hughes (1961) makes no mention of disposition of voucherspecimens, so it is unknown whether these specimens were collected during his study. It is unlikely thatthe specimens reported by Darsie et al. (2002) and Hribar (2005) were transported by aircraft, but theymay have been blown into the Florida Keys by winds from passing storms, or more likely they are theprogeny of insects previously introduced into the islands.Literature citedCarpenter, S. J. 1941. The mosquitoes of Arkansas (revised edition). Arkansas State Board of Health.Little Rock. 87pp.Darsie, R. F., Jr., J. J. Vlach, and E. M. Fussell. 2002. New addition to the mosquito fauna of theUnited States, Anopheles grabhamii (Diptera: Culicidae). Journal of Medical Entomology 39: 430-431.Dobbs, T. T., and C. F. Brodel. 2004. Cargo aircraft as a pathway for the entry of nonindigenous pestsinto south Florida. Florida Entomologist 87: 65-78.Evans, B. R., C. R. Joyce, and J. E. Porter. 1963. Mosquitoes and other arthropods found in baggagecompartments of international aircraft. Mosquito News 23: 9-12.Goddard, L. B., A. E. Roth, W. K. Reisen, and T. W. Scott. 2002. Vector competence of Californiamosquitoes for West Nile virus. Emerging Infectious Diseases 8: 1385-1391.Gratz, N. G., R. Steffen, and W. Cocksedge. 2000. Why aircraft disinsection? Bulletin of the WorldHealth Organization 78: 995-1004.Hamlyn-Harris, R.1933. Some ecological factors involved in the dispersal of mosquitos in Queensland.Bulletin of Entomological Research 24: 229-232.Horsfall, W. R.1954. A migration of Aedes vexans Meigen. Journal of Economic Entomology 47: 544.Hribar, L. J.2002. Mosquito (Diptera: Culicidae) collections in the Florida Keys, Monroe County, Florida,USA. Studia Dipterologica 9: 679-691.Hribar, L. J. 2005. New locality record for Anopheles grabhamii (Diptera: Culicidae) from the FloridaKeys. Florida Scientist 68: 75-76.Hribar, L. J., and J. J. Vlach. 2001. Mosquito (Diptera: Culicidae) and biting midge (Diptera:Ceratopogonidae) collections in Florida Keys state parks. Florida Scientist 64: 219-223.Hughes, J. H. 1961. Mosquito interceptions and related problems in aerial traffic arriving in the UnitedStates. Mosquito News 21: 93-100.Mitchell, E. G.1907. Mosquito Life. Putnam; New York. xxii+281 p.Owen, W. B. 1937. The mosquitoes of Minnesota, with special reference to their biologies. University ofMinnesota Agricultural Experiment Station Technical Bulletin Number 126. 75 p.Porter, J. E. 1957. The development of public health service quarantine entomology and its program insouth Florida. Florida Entomologist 40: 45-49.Pritchard, A. E., E. L. Seabrook, and J. A. Mulrennan. 1949. The mosquitoes of the Florida Keys.Florida Entomologist 30: 8-15.Sellers, R. F.1980. Weather, host, and vector-their interplay in the spread of insect-borne animal virusdiseases. Journal of Hygiene 85: 65-102.INSECTA MUNDI 0005, April 2007  3 MOSQUITO RECORDS FOR EXTREME SOUTHERN FLORIDAService, M. W.1980. Effects of wind on the behaviour and distribution of mosquitoes and blackflies (sic).International Journal of Biometeorology 24: 347-353.Thibault, J. K. 1910. Notes on the mosquitoes of Arkansas. Proceedings of the Entomological Society ofWashington 12: 13-26.Turell, M. J., D. J. Dohm, M. A. Sardelis, M. L. OGuinn, T. G. Andreadis, and J. A. Blow. 2005.An update on the potential of North American mosquitoes (Diptera: Culicidae) to transmit West Nilevirus. Journal of Medical Entomology 42: 57-62.Accepted: April 16, 20074 INSECTA MUNDI 0005, April 2007 HRIBAR

New and old mosquito records for extreme southern Florida (Diptera: Culicidae)

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