Tarsitachys bilobus (Coleoptera, Carabidae) is a fossil species described by Erwin from Baltic amber. Its description was based on only one known specimen, and thus, part of its anatomical structures were unknown as they were poorly preserved in the Holotype. In this paper we complete the description with a second specimen. A new placement among Tachyina and a new status for the genus are propo...

The genus Paraloxoblemmus Karny has not been revised since 1907. In this paper, I present a lectotype designation and photographs of the type species, Paraloxoblemmus loxoblemmoides (Karny). In addition, a new combination Paraloxoblemmus longifrons (Chopard, 1969) is established. This species is transferred from Loxoblemmus Saussure based on the structure of the male genitalia of the holotype. ...

This work describes three newly discovered species of Rhophitulus Ducke, 1907: R. labiosus n. sp. from Minas Gerais (Brazil), R. mimus n. sp. from Salta (Argentina), and R. xenopalpus n. sp. from Catamarca and Tucumán (Argentina). Photographs of the holotype of Rhophitulus steinbachi (Friese, 1916) are provided, and modifications in the morphology of a female of R. xenopalpus n. sp. when parasi...

The Chinle Formation of Arizona is a highly fossiliferous terrestrial unit from the Late Triassic Period. Fossil vertebrate collections from the Chinle Formation date back to the late 1890s and document a diverse fauna that is correlative with other Late Triassic faunas worldwide. No fewer than 18 holotype specimens including metoposaurids, phytosaurs, aetosaurs, crocodylomorphs, dinosauromorph...

The aphid genus Nigritergaphis gen. n. is described, and N. crassisetosa sp. n. on Isodon eriocalyx (Dunn) Kudô (Lamiaceae) from Yunnan, China is described and illustrated. The new species curls and distorts the leaves of this important traditional Chinese medicinal plant, and is evidently specific to this host. Holotype and paratypes are deposited in the National Zoological Museum of China, In...

Only one rodent specimen has been previously described from the late Hemphillian ZX Bar local fauna from Sioux County, Nebraska-the holotype of the heteromyid Perognathus coquorum Wood. A re-examination ofthis specimen has led to its allocation to the dipodomyine heteromyid genus Prodipodomys Hibbard. An additional specimen of a fossil rodent has been recognized from the ZX Bar fauna that is re...

A full description of the subadult male holotype of the diastylid Ektonodiastylis robusta, new genus, new species, is presented, as well as of the adult male and adult female of E. nimia. Ektonodiastylis nimia is transferred from Brachydiastylis to Ektonodiastylis. The family definition of Diastylidae is expanded. The implications of this expansion on the systematics of the Cumacea in general, ...

In this paper, we validate the doubtful species status of E. guianae, with redescriptions of (supposedly lost) type and holotype males, and a first description of the female. Both sexes are measured and illustrated by pictures of habitus and copulatory organs. Seventeen new salticid species for French Guiana are also reported and a detailed catalogue of all salticid species from the Trinité Nat...

A taxonomic account of the spider Cybaeus fujisanus Yaginuma, 1972, which was described on basis only a female holotype from cave at foot Mt. Fuji, Japan, is revisited. male specimen collected near type locality and for first time. redescription using other newly specimens also provided. The conspecificity present confirmed nuclear ITS-1 mitochondrial COI sequences.

Three new species of the monotypic genus Melloleitaoina Gerschman & Schiapelli, 1960 are described from northern Argentina: M. mutquina sp. n., M. uru sp. n. and M. yupanqui sp. n. The female specimen originally described as M. crassifemur is not conspecific with the male holotype and thus is removed from this species and described as M. uru sp. n.; M. crassifemur is redescribed. All species ar...