Diochus cleidecostae, a new species from the Brazilian Amazon and a discussion of the sexual dimorphism on sternum VIII (Coleoptera: Staphylinidae: Staphylininae: Diochini)

Diochus Erichson is a worldwide rove beetle genus with species found in forest floor litter. Three species of Diochus were recently collected in northern Brazil, one of them considered as new and herein described. Within Diochus nanus-group, D. cleidecostae sp. nov. differs from D. apicipennis Cameron, D. nanus Erichson and D. perplexus Cameron by the aedeagus with clearing trifurcate apex of parameres; and differs from D. parvulus Kraatz by the three apical long setae of parameres distributed on ventral and dorsal lobes. A previous key to the D. nanus-group is updated to include the new species. Here we also report for the first time D. santacatarinae Irmler and D. parvulus from Pará state, Brazil. Finally, a discussion about the sexual dimorphism on sternum VIII is also provided for the genus

Morfologia dos ovos de tres espécies de Sennius Bridwell, 1946 (Coleoptera, Bruchidae) com base em microscopia eletrônica

Orientadora: Cibele S. Ribeiro-CostaMonografia (Bacharelado) - Universidade Federal do Paraná. Setor de Ciencias Biológicas. Curso de Graduaçao em Ciencias BiológicasResumo : Ovos de três espécies de Sennius Bridwell são descritos com base na técnica de microscopia eletrônica de varredura. Os ovos de S. crudelis Ribeiro-Costa & Reynaud, 1998 apresentam forma alongada e um dos extremos ligeiramente mais alargado; a membrana que recobre o ovo é lisa e ocorrem filamentos para a fixação. S. bondari (Pic, 1929) possui ovos de formato oval com membrana ornamentada e bordas laterais onduladas. Os ovos de S. nappi Ribeiro-Costa & Reynaud, 1998 são ovais com membrana ornamentada e, em um dos extremos, está presente o tubo respiratório. A membrana que recobre os ovos de S. bondari e S. nappi prolonga-se em toda a sua extensão fixando-os ao substrato. O ovo de S. bondari assemelha-se mais ao de S. nappi, e o de S. crudelis ao de outras espécies de Sennius já descritos. A fêmea de S. crudelis oviposita em fruto imaturo de Senna multijuga (Rich.) H.S. Irwin & Barneby, e de S. nappi, oviposita em frutos imaturos e sementes dessa mesma planta. A fêmea de S. bondari oviposita em sementes de Senna macranthera (De. ex Collad.) H.S. Irwin & Barneby

A New Brazilian Species of Gnathymenus Solier (Coleoptera: Staphylinidae: Paederinae)

Bortoluzzi, Sidnei, Caron, Edilson (2018): A New Brazilian Species of Gnathymenus Solier (Coleoptera: Staphylinidae: Paederinae). The Coleopterists Bulletin 72 (1): 166-170, DOI: 10.1649/0010-065X-72.1.166, URL: http://dx.doi.org/10.1649/0010-065x-72.1.16

Bledius hyalinus sp. nov. (Coleoptera: Staphylinidae: Oxytelinae), of the forcipatus group, first recorded from coastal Brazil

Bortoluzzi, Sidnei, Caron, Edilson (2019): Bledius hyalinus sp. nov. (Coleoptera: Staphylinidae: Oxytelinae), of the forcipatus group, first recorded from coastal Brazil. Zootaxa 4559 (2): 391-395, DOI: https://doi.org/10.11646/zootaxa.4559.2.1

First record of the genus Myllaena Erichson from Brazil, description of a new species and annotated catalog of Myllaena species from the Neotropical region (Coleoptera, Staphylinidae, Aleocharinae)

The genus Myllaena Erichson, 1837, of the tribe Myllaenini Ganglbauer, 1895, is recorded from Brazil for the first time. A new species, Myllaena brasiliensis sp. nov., is described and illustrated; it is closely related to the insomnis species group, described from the Nearctic region. A short diagnosis of the genus and an annotated catalog of Myllaena species from the Neotropical region are also provided

Polylobus sodalis Olliff 1886

Polylobus sodalis Olliff, 1886 Polylobus sodalis Olliff, 1886: 438 [Type locality: “Sydney, New South Wales ” (Olliff 1886)]. Distribution: Australia (Bernhauer & Scheerpeltz 1926; Newton & Thayer 2005).Published as part of Silva, Sidnei Bortoluzzi Da & Caron, Edilson, 2014, The unique Brazilian species of Polylobus Solier (Coleoptera: Staphylinidae: Aleocharinae) with a checklist of all species of the genus, pp. 226-238 in Zootaxa 3811 (2) on page 235, DOI: 10.11646/zootaxa.3811.2.4, http://zenodo.org/record/22588