Notes on a Collection of Erythroneura and Hymetta (Eupterygidae) Chiefly from Illinois with Descriptions of New Forms

The collection here reported upon was identified and descriptions of new forms written several months ago, completion of the report being delayed by lack of time to trace out a few loose ends. As a new revision of the genus Erythroneura is under way it is thought best to put on record now these Illinois data. The Eupterygidae were long a favorite group with the late Charles A. Hart, who substantially assisted Gillette's revision (Proc. U. S. Nat. Mus. 20, 1898, pp. 750-773) with loans of material. He had sorted subsequent collections of the State Natural History Survey and had invented manuscript names for most of the undescribed forms. A number of these were independently named in the Key to the Nearetic Species and Varieties of Erythroneura by the writer, who did not have Hart's material at hand at the time.published or submitted for publicationis peer reviewe

Notes on Homoptera from Illinois With Descriptions of New Forms, Chiefly Eupteryginae

The records given herein supplement those in a previous paper (Bul. Ill. Sate Nat. Hist. Survey, Vol. XV, Art. II, April, 1924, pp. 39-44) along similar lines, and constitute a report on various lots of Homoptera, chiefly Eupteryginae submitted to the writer for determination. The species of the genus Typhlocyba are treated in a previous paper (Proc. U. S. Nat. Mus., Vol. 68, Art. 18, pp. 1-47), and those of the genus Empasca are held pending revisional study.published or submitted for publicationis peer reviewe

Regurgitation of the koilin layer in chinstrap penguins ( Pygoscelis antarcticus

The koilin membrane, formed by the secretions of the ventricular and pyloric glands, functions as a protective layer in the gizzards of most bird species. However, the ecological functions of koilin have never been studied in free-ranging penguins. During the two austral summers from 2012 to 2014, we observed the regurgitated koilins of chinstrap penguins (Pygoscelis antarcticus) at Narębski Point on King George Island, South Shetland Islands, and we detected a significant difference in the daily accumulation of regurgitated koilins between the pre-hatching and post-hatching periods in the rookery. We also found 233 gastrointestinal parasites, all Stegophorus macronectes (Nematoda, Acuariidae), from 26 out of 45 koilins freshly regurgitated by chinstrap penguins. We suggest that the regurgitation of koilins may benefit adult chinstrap penguins in the wild by reducing parasitic loads when they fast during incubation; it may also help decrease the risk of parasite transmission to chicks. Our results present the first observations of regurgitated koilins among breeding chinstrap penguins. How koilin regurgitation functions in penguins requires further study. Among the gentoo penguins (P. papua) co-occurring at the study site, we observed no regurgitated koilin layers

Primeiro registro de Saica apicalis Osborn & Drake para o Brasil e Pseudosaica florida (Barber), com notas taxonômicas e chave para os gêneros de Saicinae do Brasil (Hemiptera, Reduviidae) First records of Saica apicalis Osborn & Drake and Pseudosaica florida (Barber) in Brazil, with taxonomical notes and key for the Saicinae genera of Brazil (Hemiptera, Reduviidae)

Apresenta-se o primeiro registro de ocorrência de Saica apicalis Osborn & Drake, 1915 e de Pseudosaica florida (Barber, 1953) no Brasil. Notas taxonômicas sobre Saica Amyot & Serville, 1843 e Pseudosaica Blinn, 1990 são fornecidas.<br>The first records of Saica apicalis Osborn & Drake, 1915 and Pseudosaica florida (Barber, 1953) for Brazil are presented. Taxonomical notes on Saica Amyot & Serville, 1843 and Pseudosaica Blinn, 1990 are given