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A New Species and New Records of the Genus Toritrombicula (Acarina, Trombiculidae) from Birds of Sonora, Mexico

1966; American Society of Parasitologists; Volume: 52; Issue: 4 Linguagem: Inglês

10.2307/3276452

1937-2345

Richard B. Loomis,

Vector-borne infectious diseases

Toritrombicula (Whartonacarus) dupliseta, sp. n. is described from larvae taken off a longbilled curlew, Numenius a. americanus, and a black-bellied plover, Squaterola squaterola, from Bahia Kino, Sonora, Mexico. Other species of chiggers listed for the first time from Sonora and the North American continent are: Toritrombicula (Whartonacarus) thompsoni, comb. n., and Toritrombicula (Whartonacarus) shiraii, comb. n. Additional new combinations are: Toritrombicula (Whartonacarus) anous Wharton, Toritrombicula (Whartonacarus) nativitatis (Hoffmann), Toritrombicula (Toritrombiciula) hasegawai (Sasa et al.), and Toritrombicula (Toritrombicula) pluvius (Wharton). Neacariscus Vercammen-Grandjean 1960, new synonymy, is placed in Toritrombicula. Among the many chiggers from western Mexico sent to us by Dr. J. Knox Jones, Jr. of The University of Kansas were larvae taken off birds from the vicinity of Bahia Kino, Sonora, which belong to one new and two named species of the genus Toritrombicula, subgenus Whartonacarus. Five species seem to belong to the subgenus Whartonacarus VercammenGrandjean: Toritrombicula thompsoni (Brennan), which is the type species of subgenus, T. anous (Wharton), T. nativitatis (Hoffmann), T. shiraii (Sasa et al.), and the new species described below. They have similar larval morphology, distribution, and hosts. Whartonacarus originally was named as a subgenus of the genus Neacariscus (Vercammen-Grandjean, 1960). The type species of Neacariscus is Acariscus pluvius Wharton, and although similar to species of Whartonacarus, it seems to be more closely related to members of the genus Toritrombicula Sasa et al. 1953, type species, Trombicula hasegawai Sasa et al. Therefore, Neacariscus is placed in synonymy Received for publication 11 February 1966. * Studies upon which this paper is based were supported by a U. S. Public Health Service Research Grant AI-3407, from the NIAID. Specimens provided by Dr. J. Knox Jones, Jr. of The University of Kansas were taken under a contract (DA 49-193-MD-2215) between the U. S. Army Medical Research Command and The University of Kansas. t Contribution from the Department of Biology, California State College at Long Beach, California. with Toritrombicula, whereas Whartonacarlts is retained as a subgenus. The terminology usually follows that of Wharton et al. (1951) and all measurements are in microns. Except for specimens from the United States National Museum (USNM), the larvae are in The Chigger Research Collection, California State College at Long Beach (CSCLB). Toritrombicula (Whartonacarus) dupliseta, sp. n.