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Gerdia n. gen. from eastern North America, with redescription of the type species, Porobelba parki Jacot, 1937 (Acari, Oribatida, Damaeidae)

Miko, L. and Norton, R.A.


2010 - Volume: 50 Issue: 3 pages: 343-356

DOI: 10.1051/acarologia/20101977

Keywords

Gerdia Porobelba Porobelba parki oribatid mites taxonomy chaetotaxy ontogeny type-species North America

Abstract

A new mite genus, Gerdia (Oribatida: Damaeidae), is proposed for the North-American species Porobelba parki described by Jacot (1937). It is distinguished from Porobelba Grandjean, 1936 based on differences in prodorsum morphology, the absence of an unpaired porose area on the notogaster and the development of notogastral setae. Porobelba and Gerdia may be sister genera in a group that also includes Dameobelba Sellnick, 1929. Gerdia parki n. comb. is redescribed in detail based on numerous adults and its ontogeny is described for the first time. Eleven states (USA) and provinces (Canada) are added to its known distribution, which now encompasses a region from Manitoba to New Brunswick in the north and Missouri to North Carolina in the south.

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Article editorial history

Date received:
2010-06-14
Date accepted:
2010-08-04
Date published:
2010-09-30

(CC BY 4.0)
© 2010 Miko, L. and Norton, R.A.

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