Description of the female of Copestylum tigrinum Ricarte & Hancock in Ricarte et al., 2015 (Diptera, Syrphidae), first record in mainland South America and new larval host plant Author Miranda, Gil F. G. Author Soares, Matheus M. M. 0000-0002-2355-1441 Graduate Program in Entomology (PPG-Ent), Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil & matheusmmsoares @ gmail. com; https: // orcid. org / 0000 - 0002 - 2355 - 1441 matheusmmsoares@gmail.com Author Fernandes, Daniell R. R. 0000-0001-7919-2639 Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil & daniellrrfernandes @ gmail. com; https: // orcid. org / 0000 - 0002 - 2208 - 6349 gilfgm@gmail.com Author Rafael, José A. 0000-0001-7919-2639 Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil & jarafael 2 @ gmail. com; https: // orcid. org / 0000 - 0002 - 0170 - 0514 gilfgm@gmail.com text Zootaxa 2022 2022-09-05 5182 2 175 182 journal article 138554 10.11646/zootaxa.5182.2.4 2d2b4abf-7187-43b0-b73a-463bad5b8a85 1175-5326 7049593 7131E00E-9999-4214-969F-94408B5EDE8F Copestylum tigrinum Ricarte & Hancock in Ricarte et al. , 2015 FIGURES 5–10 . Copestylum tigrinum Ricarte & Hancock. Male ( 5–7 ): 5 . Dorsal view; 6 . Lateral View; 7 . Apical abdominal tergites, dorsal view. Female ( 8–10 ): 8 . Dorsal view; 9 . Lateral View; 10 . Apical abdominal tergites, dorsal view. Legend: abm, abdominal marking; m, scutum posterior macula; tb, metatibia. FEMALE ( Figs 8–10 , 13–17 ). Description . Like male ( Figs 5–7 ) except: frons pale but darkening towards vertex, of same width throughout except slightly widening above lunule, pile black ( Fig. 8 ); vertex of same width throughout, pile black ( Fig. 8 ); scutum dark postero-medial area extends apico-medially as an acute point, almost until the anterior margin of the scutum ( Fig. 9 ); scutellum with mostly black pile, pile lighter at apex ( Fig. 9 ); all femora darkened apically, protarsus entirely black, all femora with apico-frontal face with black pile ( Fig. 9 ); abdominal pale maculae narrower, appearing more like fasciae ( Fig. 10 ). Genitalia ( Figs 13–17 ): Segments, and membrane between them, short. Tergites and sternites 6 and 7 rectangular, wider than long, with pilosity restricted to apical margin. Tergite 8 rectangular, wider than long, pilosity restricted to apical margin and with four distinct apical setae, equally spaced from each other; sternite 8 mostly membranous slightly sclerotized basally, homogeneously pilose, pile shorter medially, longer and thicker laterally. Sternite 9 present in the genital chamber (‘s9’ in Fig. 13 ). Epiprocts connected apically by a narrow, curved, transverse sclerotized area (‘epi’ in Fig. 13 and 15 ), with narrow apico-lateral extensions that touch the cerci dorsally (‘ext’ in Fig. 16 ), and with short triangular apodemes (‘ap’ in Fig. 15 ), pilose with four distinct apical setae ( Fig. 15 ); hypoproct as a long triangular slightly sclerotized area, densely pilose (‘hyp’ in Fig. 17 ). Cerci (‘c’ in Figs 14–17 ) sclerotized and pilose, positioned ventrally and slightly perpendicular to the plane of the epiproct. FIGURES 11–17 . Copestylum tigrinum Ricarte & Hancock , genitalia. Male ( 11–12 ): 11 . Lateral view; 12 . Posterior view. Female ( 13–17 ): 13 . Dorsal view; 14 . Ventral view. Proctiger ( 15–17 ): 15 . Dorsal view; 16 . Lateral view; 17 . Ventral view. Legend: ap, apodeme of the epiproct; c, cercus; ep, epandrium; epi, epiproct; ext, apico-lateral extensions of the epiproct; hyp, hypoproct; s8, sternite 8; s9, sternite 9 (internal); sct, sub-epandrial sclerite; st, surstylus; t6, 7 and 8, tergites 6, 7 and 8. Adult size . Length (mm). Male: body = 6−8 (n = 9), wing = 6.5−7.9 (n = 9). Female: body = 6.2−7.9 (n = 10), wing = 6.2−7.5 (n = 12). Adult variation . When comparing to the description and images of C. tigrinum in Ricarte et al . (2015) , the males from this study have a more ventrally produced face ( Figs 6 and 9 ), the scutum is cream-colored medially, instead of orange (although this might be an artifact of preservation/photography), the posterior brown maculae of the scutum are larger ( Figs 5 and 8 ), the pile of the scutellum is mostly black, all femora are darkened apically, and the pale abdominal markings are narrower ( Figs 7 and 10 ). Examined material . BRAZIL , AM , Manaus, ZF-2, tower trail, 18.i.2019 , emerged from fruits of Casearia combaymensis , J.A. Rafael et al. [ 11 ♂ (D#0188–0198), 15 ♀ (D#0199–0213), 4 puparia not associated to their respective adults]; Maués , ESEC Alto Maués , 5º35'59"S 58º49'12"W , 8–16.v.2019 , Malaise large, close to stream, P.C.S. Barroso and S.P. Lima [ 1 ♀ (D#0214)] . Biology . The area where the specimens were collected was a lowland humid tropical forest. The decaying fruits of the host plant ( C. combaymensis Tul. ), where immature stages of this species were collected, belong to the family Salicaceae , a different family from the previously known record, Malvaceae ( Ricarte et al . 2015 ) . Distribution ( Fig. 18 ). Neotropical Region: Brazil (state of Amazonas), Trinidad and Tobago .