A New Genus, Six New Species, and Records of Protura from Michigan

A new genus, Proacerella (Acerentomidae), and six new species, Proacerella reducta, Eosentomon prutzi, E. sociale, E. pomari, E. brassicae, and Protentomon michiganense are described from various sites in Michigan. Records of previously described species are also listed \u27for the species Eosentomon vermiforme Ewing, E. wheeleri Silvestri, Proturentomon iowaense Womersley, Acerentulus confinis (Berlese), Amerentulus americanus (Ewing), and Yamatentomon barberi (Ewing)

A New Species of \u3ci\u3eNeelides\u3c/i\u3e (Collembola: Neelidae) from the United States

(excerpt) This paper is comprised of the description of a new species of Neelides Caroli (1912) recovered from moss. It becomes only the third described species of the genus. Specimens were recovered by a sugar flotation-centrifugation method (Jenkins, 1964), mounted, and characterized with the aid of a camera lucida. The holotype, some paratypes, and five specimens in 95% ethyl alcohol will be deposited in the Entomology Museum, Michigan State University, East Lansing, Michigan, 48824

New Species and Additional Records of Protura from Michigan

Three new species, Eosentomon antrimense, E. pinusbanksianum, and Berberentulus mcqueeni, and one new record, E. australicum Womersley are added to the known Protura fauna of Michigan. Further records of E. wheeleri Silvestri, Protentomon michiganense Bernard, Proturentomon iowaense Womersley, Acerentulus confinis (Berlese) and Amerentulus amencanus (Ewing) are listed from various parts of the state

Eosentomon Heatherproctorae N. Sp. (Protura: Eosentomidae) From Ontario

A new species of eosentomid proturan, Eosentomon heatherproctorae, is described from Ontario. This new species is a member of the transitorium species-group. It differs from related North American species of this group in the following combination of characters: labral setae absent, foretarsal sensilla d and t3 long and stout, no anterior setae on the sternite of the eighth abdominal segment, and six setae on the sternites of the ninth and tenth abdominal segments

Estimation of Sorting Time for Arthropod Samples Collected with Tullgren Funnels

Arthropods were sorted from samples obtained with Tullgren funnels. Each sorter maintained a log of time per session and arthropods removed per session. Five individuals removed all arthropods from 12 separate samples and sorted them into previously designated class or ordinal taxa. Each sample was sorted by a single student. Students were allowed to develop their own approaches to sorting and do it as time permitted. Mean sorting rate per sample was 2.43 arthropods per minute, with a range of 1.42-5.64, while mean sorting rate for a sorting session was 3.41 specimens per minute. Specimen density was only weakly correlated with sort time. Fatigue did not appear to be a major factor in sorting rate, as indicated by the similarity of the linear and quadratic coefficients of determination for each sample

European Springtails Orchesella cincta (L.) and O. villosa (L.) (Collembola: Entomobryidae): Vagabond Species of the Nearctic Region

North American specimens of the European invasive springtail Orchesella cincta (L.) were compared to several published European haplotypes in a phylogenetic framework using likelihood methods based on a portion of cytochrome oxidase II (cox2). Our analyses provide direct evidence of at least two distinct introductions of this invasive to North America from different regions of Europe. Additional introduction events cannot be ruled out because detection is limited by extremely low sequence divergence among populations inhabiting different regions of the continent. Orchesella villosa (L.), another invasive from Europe, is another candidate for multiple introductions. Herein we include the cox2 sequence from single specimens of O. villosa from Maine and Oregon. Although these two specimens are identical in sequence, they differ from a published sequence from a European specimen by 15%, indicating significant undocumented genetic variation in the natal range of O. villosa. Additional sampling of Nearctic populations of O. villosa might reveal the same situation reported herein for O. cincta

Tanzania: Community Foundations Current Status, Facts and Figures from the 2010 CF-GSR Survey

This is a fact sheet information on community foundations in Tanzani

Eosentomon Heatherproctorae N. Sp. (Protura: Eosentomidae) From Ontario

A new species of eosentomid proturan, Eosentomon heatherproctorae, is described from Ontario. This new species is a member of the transitorium species-group. It differs from related North American species of this group in the following combination of characters: labral setae absent, foretarsal sensilla d and t3 long and stout, no anterior setae on the sternite of the eighth abdominal segment, and six setae on the sternites of the ninth and tenth abdominal segments