Accepted by B. Rossaro: 25 Nov. 2013; published: 7 Jan. 2014 297 ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Copyright © 2014 Magnolia Press Zootaxa 3753 (3): 297299 www.mapress.com/zootaxa/ Correspondence http://dx.doi.org/10.11646/zootaxa.3753.3.9 http://zoobank.org/urn:lsid:zoobank.org:pub:15475172-CFD4-42E7-AF55-AD0C65E58B8F Denopelopia moema, a new Tanypodinae (Diptera: Chironomidae) from the Neotropical Region FABIO LAURINDO DA SILVA 1 , SOFIA WIEDENBRUG 2 & CAROLINE SILVA NEUBERN DE OLIVEIRA 1 1 Laboratory of Aquatic Entomology, Department of Hydrobiology, Federal University of São Carlos, P.O. Box 676, 13565-905, São Carlos, SP, Brazil 2 Museum of Zoology, University of São Paulo, Av. Nazaré, 481, 04263-000, São Paulo, SP, Brazil. E-mail: fabelha@hotmail.com Whilst sorting Malaise trap material from Pantanal, in western central Brazil, a not readily identifiable species of Denopelopia Roback et Rutter, were found. This genus has no formal species described or recorded in Brazil, except for a larval morphotype recorded by Trivinho-Strixino & Strixino (1995). According to Ashe & O´Connor (2009), Denopelopia comprises 4 species known from the Nearctic, Neotropical, eastern Palearctic and Oriental regions (viz. D. atria Roback & Rutter, 1988; D. diaoluonica Cheng & Wang, 2005; D. irioquerea Sasa et Suzuki, 2000 and D. viridula Cheng & Wang, 2005). A key of adult males was given by Cheng and Wang (2005). The found species is regarded as new and described here. The specimens were slide-mounted in Euparal. Morphological terminology and abbreviations follow Sæther (1980). Mensural data are given as ranges, with the number of observed specimens in parenthesis if different from the number (n) stated at the beginning of the description. The holotypes and paratypes are deposited in the Museum of Zoology of the University of São Paulo. Taxonomy Denopelopia is a genus close to Paramerina, Telmatopelopia and Zavrelimyia. Roback & Rutter (1988) described the adults and immatures of Denopelopia atria using the following characters. Male: AR 1.6–1.7; costa not extended beyond R 4+5 , ending between apices of M and CU 1 ; tergite A IX with transverse row setae; anal point conical. Pupa: thoracic horn with small plastron plate; thoracic comb present; A VII with three LS filaments; anal lobes elongate-triangular with a row of spinules on outer margin only; male genital sacs about ½ as long as anal lobes. Larva: head IC about 0.50; ligula with equal size; paraligula trifid; anal tubules shorter than posterior pseudopods Denopelopia moema sp. n. (Fig. 1) Type material. Holotype male, Brazil, Mato Grosso do Sul, Corumbá, BEP - Mata ciliar, Rio Miranda, 02.xi- 02.xii.2011, C. J. E. Lamas & S. S. Nihei (SISBIOTA-Project). Paratypes: 3 males same data as holotype. 2 males same data as holotype except for 03-18.x.2011. Diagnostic characters. Denopelopia moema can be distinguished from most other Denopelopia species by the abdominal segment I pale, with two lateral small brown spots on anterior margin, A II–III pale, A IV pale with one medial brown spot on anterior margin, A V–VIII with posterior dark brown bands, covering almost whole segments. Adult males of D. moema appear most similar to those of D. atria Roback & Rutter in the AR and abdominal coloration. However, the distinctive brown spots on anterior margin of abdominal segment I and IV separate D. moema from the former species. Etymology . Refers to the main character in the epic poem "Caramuru" from Santa Rita Durão, an Indian woman of the Tupi group named Moema, which means sweet. Description. Adult male. (n = 6)