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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Systematic Entomology Laboratory » Research » Publications at this Location » Publication #344956

Research Project: Plant Feeding Mite (Acari) Systematics

Location: Systematic Entomology Laboratory

Title: Quadraseta brasiliensis Goff & Gettinger, 1 1989 (Acari: Trombidiformes: Trombiculidae): neotype designation, redescription of larva and description of deutonymph

Author
item Jacinavicius, F. - Sao Paulo State University (UNESP)
item Bassini-silva, R. - Universidade Nacional De Sao Paulo
item Munoz-leal, S. - Universidade Nacional De Sao Paulo
item Hingst-zaher, E. - Universidade Nacional De Sao Paulo
item Ochoa, Ronald - Ron
item Bauchan, Gary
item Barros-battesti, D. - Sao Paulo State University (UNESP)

Submitted to: Acarology International Congress Proceedings
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/23/2017
Publication Date: 3/22/2018
Citation: Jacinavicius, F.C., Bassini-Silva, R., Munoz-Leal, S., Hingst-Zaher, E., Ochoa, R., Bauchan, G.R., Barros-Battesti, D.M. 2018. Quadraseta brasiliensis Goff & Gettinger, 1 1989 (Acari: Trombidiformes: Trombiculidae): neotype designation, redescription of larva and description of deutonymph. Acarology International Congress Proceedings. 58(2):442-456.

Interpretive Summary: Chiggers are an important group of mites associated with domestic animals and humans. Many of the species of veterinary importance are undescribed or unknown. This paper will help to identify one of the most important genus in South America which includes 14 species. This study will be important to animal protection officers, extension workers, Agriculture scientists, entomologists and farmers.

Technical Abstract: In the Neotropical region the genus Quadraseta Brennan, 1970, includes 14 species, with ectoparasitic habits in larval stage. Quadraseta brasiliensis Goff & Gettinger, 1989, was described from larvae collected on rodent Hylaeamys megacephalus (Fisher), cited as Oryzomys capito (Olfers). According to these authors, the holotype was deposited in the MZUSP and the paratypes were deposited in three other collections ; BPBM, OMNH and NMNH, however, no type specimens were found. Therefore we are designating a neotype and redescribing the larva of this species. We are describing the deutonymph which developed from larvae collected in the field, as well as reporting new hosts and new localities for the Q. brasiliensis in Brazil. In addition we provide sequences of 18S ribosomal RNA gene for this species.