Results 241 to 250 of about 5,339 (272)

Keys to the Genera of Chiggers of the Western Hemisphere (Acarina: Trombiculidae)

The Journal of Parasitology, 1977
Synotpic keys to the 87 genera of chiggers in the Western Hemisphere (Nearctic and Neotropical regions) as well as illustrations to the terminology employed, are presented.
James M. Brennan, M L Goff
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A Note on the Culturing of Chiggers (Trombiculidae)1

Annals of the Entomological Society of America, 1946
During the course of an investigation on the toxicity and repellency of various organic compounds to arthropods affecting man, studies were made on methods of propagating chiggers in the laboratory for test and taxonomic purposes. A brief discussion of the technique found most successful follows. A satisfactory culture medium for most of the species of
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Four New Chiggers from Argentina (Acarina: Trombiculidae)

The Journal of Parasitology, 1964
Four new species of chiggers from Buenos Aires Province and their type hosts are Eutrombicula iellisoni off dove (probably Columbigallina sp.), Euschoengastia azulae off opossum, Euschoengastia trapezoides off fox, and Euschoengastia pazca off Rattus sp. Descriptions and figures are given. The four new species of chiggers described below were collected
Eleanor K. Jones, James M. Brennan
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Stylostome formation in trombiculid mites (Acariformes: Trombiculidae)

Experimental and Applied Acarology, 2009
Stylostomes of the trombiculid mite larvae Neotrombicula pomeranzevi (Schluger), Hirsutiella zachvatkini (Schluger), Miyatrombicula esoensis (Sasa and Ogata) and Euschoengastia rotundata (Schluger) (Acariformes: Trombiculidae), formed in the host skin during feeding of the parasites on their natural hosts (voles) were studied histologically and ...
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New North American Chiggers (Acarina, Trombiculidae)

The Journal of Parasitology, 1948
Larvae, in life, orange, broad-elliptical. Size: Length, 500 to 643; width, 316 to 408. Capitulum (Fig. 1, B): Chelicerae moderately long, stout, with distinct subapical ventral tooth and inconspicuous dorsal tooth. Cheliceral base longer than wide, with few scattered punctations. Galeal seta forked or with two branches.
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Two New Venezuelan Chiggers (Acarina: Trombiculidae)

The Journal of Parasitology, 1952
Trombiculid larvae of the subfamily Walchiinae. Eyes present. Cheliceral blade with tricuspid cap. Scutum with 3 setae, the anterolaterals and anteromedian; the posterolateral setae apparently displaced onto the dorsum. Sensillae flagelliform. Genotype: Anomalaspis ambiguus n. sp.
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Twenty Larval Trombiculidae (Acarina) from Iran

The Journal of Parasitology, 1970
Eighty-three specimens of chigger mites were collected from reptilian, avian, and mammalian hosts captured in various localities of Iran. Study of this material has permitted identification of 20 species, of which 19 are new, belonging to 10 genera. The subgenus Ornithogastia Vercammen-Grandjean, 1960, is revived and placed in the genus Guntherana.
H. Mesghali, C. J. Rohde, P. H. Vercammen-Grandjean   +2 more
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New Guinea chiggers (Acari: Trombiculidae)

1982
Ewing (1944) proposed the family Trombiculidae for those acariform mites commonly referred to as “chiggers.” These mites have seven distinct stages in their life cycle. Three of these stages are active (larva, deutonymph, adult) and four are inactive or calyptostases (egg, deutovum, protonymph, tritonymph).
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Redescription of Kymocta Brasiliensis (Acari: Trombiculidae)

Journal of Medical Entomology, 1983
Kymocta brasiliensis is redescribed from the unique holotype. The relationship of Kymocta to Doloisia is briefly discussed.
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A Culture Medium for Chiggers (Trombiculidae)

The Journal of Parasitology, 1949
G. W. Wharton, Charles E. Farrell
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