The genus Euryparasitus in North America (Mesostigmata: Euryparasitidae)

The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) in North America.

The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) is revised in North America. Descriptions of the western species, P. nearcticus Banks 1938, are provided with the first descriptions of the female, pupa, larva, egg and case and with notes on food, habitat and annual life cycle. The male and female of the eastern species, P. celsus Ross 1936, are described or redescribed...

The genus Scelolyperus Crotch in North America (Coleoptera: Chrysomelidae: Galerucinae)

Freshwater Triclads (Turbellaria) of North America, IX: The Genus Sphalloplana

Kenk, Roman. Freshwater Triclads (Turbellaria) of North America, IX: The Genus Sphalloplana. Smithsonian Contributions to Zoology, number 246, 38 pages, 62 figures, 1 table.—A revision of the North American species of the genus Sphalloplana is presented. Apart from the nine species already known (S. percoeca, S. georgiana, S. kansensis, S. virginiana, S. weingartneri, S. buchanani, S. pricei, S...

Freshwater Triclads (Turbellaria of North America, VI: The Genus Dendrocoelopsis

Kenk, Roman. Freshwater Triclads (Turbellaria) of North America, VI: The Genus Dendrocoelopsis. Smithsonian Contributions to Zoology, number 138, 16 pages, 12 figures, 1973.—Five species of Dendrocoelopsis occur in North America, D. vaginata Hyman, D. piriformis Kenk, D. alaskensis Kenk, D. hymanae Kawakatsu, and D. americana [=Sorocelis americana Hyman]. Dendrocoelopsis vaginata, D. piriformis...

New MacrochelePratums species (Acari, Mesostigmata, Macrochelidae) associated with burying beetles (Silphidae, Nicrophorus) in North America

Burying beetles (Silphidae, Nicrophorus) are hosts to a broad diversity of mites (Acari), including several species of Macrocheles Latreille, 1829 (Mesostigmata, Macrochelidae). The macrochelid fauna associated with silphids primarily in North America was surveyed; in total, 1659 macrochelids representing seven species were collected from 112 Nicrophorus beetles representing nine host species. ...