A revision of the Chilean water penny genus Waterhouse, 1876 (Coleoptera, Psephenidae, Eubriinae), with description of a second species and two larval morphotypes, and notes on other Chilean Psephenidae.

The Chilean water penny genus Waterhouse, 1876 is revised, with descriptions and photographic illustrations of life stages including two larval morphotypes, the pupa of one morphotype, and adults of two species. The pupa of has not been reported previously. is described, and Ectopria (Chilectopria) grandis Pic, 1947, is proposed as a new synonym of Waterhouse, 1876, which is redescribed.

Rhithrops capensis gen. et sp. nov., a new aquatic dryopid beetle from the Western Cape of South Africa (Coleoptera: Dryopoidea: Dryopidae).

Rhithrops capensis gen. et sp. nov.

A review of the Larainae of Australia with description of seven new species and the new genus (Coleoptera, Byrrhoidea, Elmidae).

The three genera and four species of Larainae (Elmidae) previously described from Australia are reviewed, and one new genus and seven new species are described: , , , , , , and A lectotype is designated for (Carter & Zeck), and the first new collection records of the species are reported since its description in 1932. The occurrence in Australia of Satô, described from Papua New Guinea, is reported. A key to the species, photographic images of the external morphology and male genitalia, distribution maps, and habitat and behavioral information, when known, are provided for all twelve species of Australian Larainae.

Hiding in plain sight: rediscovery and review of Parygrus Erichson, 1847, with description of five new species from the Neotropics (Coleoptera: Byrrhoidea: Dryopidae).

The history and original concept of Parygrus Erichson, 1847, is reviewed, the genus is redescribed, and the status of the type species, P. erichsoni Waterhouse, 1876, is clarified. The four original species are reviewed, with photographs provided for the type specimens of P.

An Institutional Review: Which Metrics Correlate With a Successful United States Medical Licensing Examination Step 1 Score?

Purpose: Since the introduction of the Comprehensive Basic Science Examination (CBSE) as an entrance examination in 2012, no studies have been performed correlating its relationship with passing rates on United States Medical Licensing Examination (USMLE) Step 1 in dental students. This study was designed to determine the impact of the CBSE score, dental grade point average (GPA), and undergraduate GPA on USMLE Step 1 performance and develop a CBSE cutoff score that correlates with a passing USMLE score.

Materials And Methods: A single-blinded, retrospective, cross-sectional study was designed.

Neoelmis guarani Shepard & Barr, a sexually dimorphic new species from Paraguay (Insecta: Coleoptera: Elmidae: Elminae).

Neoelmis guarani new species is described and illustrated from specimens collected in streams of the Cordillera de los Altos, southeast of Asunción and near the towns of Piribebuy and Chololó, Paraguay. Males and females of this species exhibit strong secondary sexual dimorphism not found in other known species of Neoelmis. Males have striking modifications of the pro- and mesothoracic legs and bear a pair of ventrally projecting processes on both the mesoventrite and the second abdominal ventrite.

Neoeubria inbionis Shepard & Barr, a new genus and new species of neotropical water penny beetle (Coleoptera: Psephenidae: Eubriinae), with a key to the adult Eubriinae of the Neotropic Zone.

Neoeubria inbionis, new genus and new species, is described from Costa Rica, Nicaragua, Panama and Ecuador. All life stages are descibed and illustrated, and a key to adults of the Eubriinae genera of the Neotropics is provided. Neoeubria is one of the most basal genera of the Eubriinae.