Description of five new species of frog-biting midges (Diptera, Corethrellidae) from Brazil and examination of new morphological characters with utility for taxonomic and phylogenetic studies Author Amaral, André P. 748F2AF6-F4B3-47D1-B148-16811B9E9B40 Programa de Pós-Graduação em Zoologia, Universidade Estadual de Santa Cruz, Depto. de Ciências Biológicas, CEP 45650 - 000, Ilhéus, Bahia, Brazil. ap.amaral@outlook.com Author Mariano, Rodolfo 5173D6E4-A58A-44F2-BE3D-3BFD875595CF Programa de Pós-Graduação em Zoologia, Universidade Estadual de Santa Cruz, Depto. de Ciências Biológicas, CEP 45650 - 000, Ilhéus, Bahia, Brazil. rmlsilva@uesc.br Author Pinho, Luiz Carlos C9704CD1-918F-4376-ABB6-4DADDFB226FF Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Depto. de Ecologia e Zoologia, CEP 88040 - 901, Florianópolis, Santa Catarina, Brazil. luiz.pinho@ufsc.br text European Journal of Taxonomy 2023 2023-06-14 874 1 1 120 http://zoobank.org/62c858fa-a538-4e0f-b0a1-624e0062f931 journal article 54012 10.5852/ejt.2023.874.2135 a8087ba9-11c2-45e7-9b7e-1c28a2802456 2118-9773 8037742 62C858FA-A538-4E0F-B0A1-624E0062F931 Corethrella ( Corethrella ) amazonica Lane, 1939 Fig. 20 ; Appendix 1 Material examined BRAZIL – Bahia State • 4 ♀♀ , adults; Maraú , Cassange ; 13°59ʹ16ʺ S , 38°57ʹ03ʺ W ; 13 m a.s.l. ; 28 Sep. 2019 ; A.P. Amaral leg.; CDC trap ; CE-MHS • 1 ♀ , adult; Ilhéus , Cabruca da UESC ; 14°47ʹ37ʺ S , 39°10ʹ25ʺ W ; 35 m a.s.l. ; 16 Jul. 2019 ; A.P. Amaral leg.; F call trap ( Boana faber ); CE-MHS • 1 ♀ , adult; Uruçuca , PESC , “Fundos da sede” [behind park lodge]; 14°29ʹ40ʺ S , 39°08ʹ23ʺ W ; 970 m a.s.l. ; 31 Oct. 2016 ; V.A. Silva et al. leg.; light pan ; CE-MHS • 1 ♀ , adult; Porto Seguro , RPPN Veracel , mussununga ; 16°21ʹ33ʺ S , 39°08ʹ15ʺ W ; 72 m a.s.l. ; 12 Mar. 2020 ; A.P. Amaral leg.; frog-call trap (chorus); CE-MHS . Description Female adult (n = 7) HEAD. Sensilla ( Fig. 20A ): Ocular row with 2 thick offset setae at ventral part, 10–13 extending posteriorly. Subocular row weakly defined anteriorly, with 14–20 slender setae; vertex and interocular space with several slender setae. Postgenal row with 20–27 slender setae ranging from mid-posteriorly to ventromedially. With 1 thick ventromedial seta. THORAX. Sensilla ( Fig. 20B ): Antepronotum with 2–3 intermediate anterodorsal setae and 0–5 more ventral setae on anterior margin. Postpronotum with 1–2 thick dorsal and 3–6 slender setae. Scutum, prescutal area with 3 thick setae vertically arranged near prescutal suture, with 6–9 slender setae surrounding; group of about 4–5 thick/intermediate and 4–6 slender setae anteriorly, merging with anterior portion of dorsocentral row. Antealar area with 9–12 thick/intermediate and 6–8 slender setae clustered on posteroventral portion. Supraalar area with 2–3 thick setae, with 5–14 slender setae surrounding. Dorsocentral row, posterior part with group of 6–7 thick offset setae longitudinally aligned; 15–27 thick/intermediate and about 20–40 slender completing row. Scutellum with 9–12 thick setae. Posterior anepisternum with 0–4 slender dorsal setae. Anepimeron bare. WING. R 3 /R 1: 0.66 (0.63–0.69); R 2+3 /R 2: 0.36 (0.32–0.43). LEGS. Empodium ( Fig. 20C ) short, slender, with 2 branches. Fig. 20. Corethrella amazonica Lane, 1939 , female adult. A . Cranial setae, anterior and posterior views, and clypeus in anterior view. B . Thoracic setae, lateral view. C . Hind leg claw and empodium, lateral view. Distribution and biology This is the first record of Corethrella amazonica both from the state of Bahia and from the Brazilian Northeast region. Specimens studied were collected via a light trap and a frog-call pan trap playing the calls of Physalaemus cuvieri , P. signifer (Girard, 1853) and Boana faber . Sampled locations were in the Atlantic forest area: a coastal lake, a white-sandy tropical savanna (mussununga), and a small stream in a forested area. Altitudes range from 13 to 210 m a.s.l. This species is otherwise known from suthern Mexico , Nicaragua , Costa Rica , Colombia , Trinidad and Tobago , Guyana , French Guiana, and the Brazilian states of ES, PA, RO, SC, and SP, at altitudes ranging from 0 to 500 m a.s.l. ( Borkent 2008 ; Amaral et al. 2019 ). Remarks The number of setae on the posterior portion of the dorsocentral row is here differently interpreted than in Borkent (2008) . See Morphology remarks.