Corethrella (Corethrella) amabilis Borkent, 2008 Fig. 25; Appendix 1 Material examined BRAZIL – Santa Catarina State • 1 ♀, adult; Santo Amaro da Imperatriz, Plaza Caldas; 27°44ʹ31ʺ S, 48°48ʹ06ʺ W; 470 m a.s.l.; 1 Apr. 2013; A. Ambrozio-Assis leg.; frog-call trap (Physalaemus cuvieri) 1ª3; CE-MHS. Description Female adult (n = 1) HEAD. Sensilla (Fig. 25A): Ocular row with 1 thick offset seta at ventral portion, about 15 setae shortly extending posteriorly. Subocular row poorly defined anteriorly, with 4 slender setae on posterior portion; vertex and interocular space with a few scattered slender setae. Postgenal row with 6 slender setae ranging from mid-posterior portion to ventromedially. With 2 ventromedial thick setae. THORAX. Sensilla (Fig. 25B): Antepronotum with 9 slender lateral setae. Postpronotum with 1 thick dorsal and 4 slender setae more posteriorly. Scutum, prescutal area with 2 thick and 1 intermediate, vertically aligned setae near prescutal suture; 8 intermediate and 4 slender setae anteriorly, merging with anterior portion of dorsocentral row. Antealar area with 9 thick, 4 intermediate and 6 slender setae centrally located; 8 slender setae more dorsally, near dorsocentral row. Supraalar area with 1 thick and 2 intermediate setae anteroposteriorly aligned, 11 slender setae surrounding. Dorsocentral row, posterior region with 3 thick and 1 slender offset setae; about 27 thick/intermediate and 14 slender setae filling row. Scutellum with 10 thick setae. Posterior anepisternum without setae. Anepimeron with 15 slender setae. WING. R 3 /R 1: 0.59; R 2+3 /R 2: 0.57. LEGS. Empodium (Fig. 25C) short, slender, with 3 branches. Ta1/Ta2: 2.87; Ta3/Ta4: 1.10. Distribution and biology The single specimen examined was previously recorded by Ambrozio-Assis et al. (2018). It was collected via frog-call trap playing the call of Boana bischoffi, in Santa Catarina State, in an area of Atlantic forest, at an altitude of 470 m a.s.l. This species is otherwise known only from Costa Rica, at altitudes ranging from 1800 to 1850 m a.s.l. (Borkent 2008).

Published as part of Amaral, André P., Mariano, Rodolfo & Pinho, Luiz Carlos, 2023, 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, pp. 1-120 in European Journal of Taxonomy 874 (1) on pages 55-56, DOI: 10.5852/ejt.2023.874.2135, http://zenodo.org/record/8037742