Apobaetis fiuzai Salles & Lugo-Ortiz, 2002

De Lima, Cláudia R. T., Cruz, Paulo Vilela & Hamada, Neusa, 2023, Additions and corrections to taxonomy of Apobaetis fiuzai Salles & Lugo-Ortiz, 2002 and Apobaetis kallawaya Nieto, 2006 (Ephemeroptera, Baetidae), European Journal of Taxonomy 879 (1), pp. 136-161 : 139-142

Apobaetis fiuzai Salles & Lugo-Ortiz, 2002

Figs 1–2

Apobaetis fiuzai Salles & Lugo-Ortiz, 2002: 1 (type material).

Apobaetis fiuzai – Salles et al. 2003: 5 (treated here as putative); 2004: 727 (treated here as putative); 2010: 302 (treated here as putative). –– Lima et al. 2012: 306 (treated here as putative). –– Cruz 2020: 322, figs 4a–f, 5a–c (re-description).

non Apobaetis fiuzai – Cruz et al. 2011: 89. –– Falcão et al. 2011: 519. –– Boldrini et al. 2012: 92. –– Boldrini & Cruz 2014: 4.

Diagnosis (adapted from Cruz 2020)

NYMPH. Characterized by a combination of the following characters: 1) labrum rectangular, distal medial margin without shallow emargination, dorsal surface with 3 to 4 elongated and blunt medial setae near distal margin (Cruz 2020: fig. 4a); 2) hypopharynx with lingua subquadrangular, one medial protuberance, apical tuft of setae, length subequal to superlingua (Cruz 2020: fig. 4d); 3) maxillary palp long 1.5× length of galea-lacinia, segment II without apical constriction (Cruz 2020: fig. 4e); 4) labial palp with segment II with pointed triangular distomedial projection, laterally directed; segment III rectangular, distal margin almost straight (Cruz 2020: fig. 4f); 5) foreleg with dorsal margin of femur with one row of 11 short concave and blunt setae; claw 0.6–0.8 × length of tarsus, without row of denticles (Cruz 2020: fig. 5a); 6) posterior margin of the tergum IV with triangular and pointed spines in regular sizes (Cruz 2020: fig. 5b); 7) paraproct with marginal spines, posterolateral extension with triangular and pointed spines (Cruz 2020: fig. 5c).

Material examined

Holotype BRAZIL • nymph on slide (photographs); Minas Gerais, Córrego Danta, Fazenda Prata, Rio Prata ; 19º45.29′ S, 46º5.53′ W; 9 Aug. 2001; C. R. Lugo-Ortiz and F.F. Salles leg.; UFES.

Paratypes BRAZIL • 2 nymphs on slide (photographs); same collection data as for holotype; INPA .

Additional material

BRAZIL – Piauí • 3 nymphs on slide; Rio Grande do Piauí, Povoado Araticum ; 04º08′43.1″ S, 41º21′59.7″ W; 31 May 2011; N. Hamada, P. V. Cruz and R. B. Querino leg.; INPA • 3 nymphs on slide; Monsenhor Gil, Povoado Olho D’água, Riacho calça na mão; 05º34′38.6″ S, 42º29′59.5″ W; 24 Jun. 2011; N. Hamada, P. V. Cruz and R. B. Querino leg.; INPA • 2 nymphs on slide; Valença do Piauí, Dam Mesa de Pedra ; 06º11′31.6″ S, 41º59′35.0″ W; 8 Jun. 2011; N. Hamada, P. V. Cruz and R. B. Querino leg.; INPA . – Bahia • 3 nymphs on slide; Correntina, Comunidade do Val, Rio do Meio ; 13º13′35.2″ S, 44º35′37.3″ W; 7 Jun. 2012; N. Hamada, P. V. Cruz and J.O. Silva leg.; INPA • 1 nymph on slide; Correntina, Comunidade Santo Antônio, Riacho Santo Antônio ; 13º10′17.0″ S, 44º40′56.6″ W; 7 Jun. 2012; N. Hamada, P. V. Cruz and J.O. Silva leg.; INPA • 1 nymph on slide; Correntina, Tributário do Arrojado, Córrego Bonito ; 13º30′59.4″ S, 44º44′17.2″ W; 8 Jun. 2012; N. Hamada, P. V. Cruz and J.O. Silva leg.; INPA . – Goiás • 3 nymphs on slide; Colinas do Sul, Rio Tocantinzinho ; 14º17′05.7″ S, 47º56′29.4″ W; 13 Jun. 2012; N. Hamada, P. V. Cruz and J.O. Silva leg.; INPA • 2 nymphs on slide; Paraúna, Tributário do Rio Verdão ; 07º10′24.1″ S, 50º50′43.9″ W; 4 Jun. 2012; N. Hamada, P. V. Cruz and J.O. Silva leg.; INPA • 2 nymphs on slide; Colinas do Sul, Morro Vermelho, road of the São Jorge ; 14º13′34.2″ S, 47º55′15.4″ W; 13 Jun. 2012; N. Hamada, P. V. Cruz and J.O. Silva leg.; INPA . – Mato Grosso do Sul • 3 nymphs on slide; Bonito, Rio da Prata, Municipal Bathhouse of Jardim ; 21º25′04.3″ S, 56º23′24.0″ W; 15 Apr. 2012; N. Hamada, P. V. Cruz and N. Zampiva leg.; INPA • 1 nymph on slide; Bonito, Rio Mimoso, Estância Mimosa ; 20º59′57.4″ S, 56º30′38.7″ W; 16 Mar. 2012; N. Hamada, P. V. Cruz and N. Zampiva leg.; INPA . – Rondônia • 2 nymphs on slide; Alto Alegre dos Parecis, Road 490; 11º58′59.4″ S, 61º51′08.1″ W; 26 Jul. 2016; P. V. Cruz and N. Hamada leg.; INPA • 1 nymph on slide; Rolim de Moura, Road 267, Rio Palha ; 11º29′52.7″ S, 61º50′08.4″ W; 17 Jun. 2016; P. V. Cruz and N. Hamada leg.; INPA • 1 nymph on slide; Alto Alegre dos Parecis, Road 370; 12º20′37.4″ S, 61º45′26.3″ W; 9 Jul. 2016; P. V. Cruz and N. Hamada leg.; INPA . – Minas Gerais • 2 nymphs on slide; Juiz de Fora, BR 267 , bridge over the Rio Furnas ; 21º55′58.7″ S, 44º50′26.9″ W; 26 Dec. 2011; P. V. Cruz leg.; INPA . – Espírito Santo • 2 nymphs on slide; Linhares, Sooretama Reserve, Rio Quirinão ; 19º00′39.9″ S, 40º06′30″ W; 4 Nov. 2011; P. V. Cruz leg.; INPA .

Intraspecific variation of Apobaetis fiuzai

Nymph

THORAX. Light yellow, with short brown marks ( Fig. 2A, I ); lateral brown mark on pronotum; sublateral brown mark on mesonotum; basal half brown on forewing pads ( Fig. 2G ); brown mark partially covering the thorax ( Fig. 2L ); femur without mark ( Fig. 2F, H ).

ABDOMEN. Tergum V with lateral brown mark ( Fig. 2A, C, G, I, L ); terga I–X with light brown spots ( Fig. 2A, C, E, L N ); terga II and VI with medial brown mark, III–V and VII, VIII with brown spots ( Fig. 2I ); terga I–IX brown ( Fig. 2L ); terga I, II, VI, VII with medial brown mark, tergum VIII almost brown completely, tergum IX with lateral brown mark ( Fig. 2G ); sternum IX with brown mark on anterior margin ( Fig. 2B, D ); sternum VIII light brown, sterna VIII and IX with lateral brown mark ( Fig. 2H ); sternum X light brown ( Fig. 2M ).

Morphological variation

LENGTH. Claws 0.6–0.8× length of tarsus; body 2.1–2.9 mm.

Comments

Based on the study of the type material, records from Amazonas ( Cruz et al. 2011), Roraima ( Falcão et al. 2011), Rondônia ( Boldrini & Cruz 2014) and Maranhão ( Boldrini et al. 2012), are not A. fiuzai . In the type material of A. fiuzai the hypopharynx has lingua subquadrangular, with medial protuberance; maxillary palp 1.5 × length of galea-lacinia and posterolateral extension of paraproct with pointed spines. The specimens recorded as A. fiuzai from Amazonas, Roraima and Maranhão (described here as Apobaetis pasternakae sp. nov.) have lingua subcircular, without medial protuberance; maxillary palp 2.0 × or longer than galea-lacinia and posterolateral extension of paraproct without spines. The specimen assigned to A. fiuzai from Rondônia (described here as Apobaetis jaquelinae sp. nov.) has lingua subcircular, posterolateral extension of paraproct with blunt spines, and has claws with two row of denticles.

Distribution

Brazil – Bahia: Rio de Contas (putative), Correntina; Espírito Santo: Alto Caparaó (putative), Santa Teresa (putative), Linhares; Goiás: Colinas do Sul, Paraúna; Mato Grosso: Chapada dos Guimarães; Mato Grosso do Sul: Bonito; Minas Gerais: Arinos, Descoberto, Córrego Danta, Juiz de Fora; Pernambuco: São Benedito do Sul (putative); Piauí: Monsenhor Gil, Rio Grande do Piauí, Valença do Piauí; Rio de Janeiro: Comendador Levy Gasparian (putative); Rondônia: Alto Alegre dos Parecis, Rolim de Moura; São Paulo: Cananeia (putative). Argentina – Acheral: Tucumán ( Nieto 2006) (putative). All records treated here as putative must be evaluated.

Figures

Fig. 1. Map with distribution of Apobaetis fiuzai Salles & Lugo-Ortiz, 2002 (including putative records) (black circles), Apobaetis pasternakae sp. nov. (yellow stars), Apobaetis kallawaya Nieto, 2006 (green square), Apobaetis jaquelinae sp. nov. (red triangles), and Apobaetis luanae sp. nov. (blue triangles).

Fig. 2. Apobaetis fiuzai Salles & Lugo-Ortiz, 2002, habitus of nymph, from different populations, showing pigment variation. A–F. Goiás State. A. Nymph female (d.v.). B. Nymph female (v.v.). C. Nymph female (d.v.). D. Nymph female (v.v.). E. Nymph male (d.v.). F. Nymph male (v.v.). – G–H. Piauí State. G. Nymph female (d.v.). H. Nymph female (v.v.). – I–O. Bahia State. I. Nymph female (d.v.). J. Nymph female (v.v.). L. Nymph female (d.v.). M. Nymph female (v.v.). N. Nymph female (d.v.). O. Nymph female (v.v.). Abbreviations: d.v. = dorsal view; v.v. = ventral view. Not to scale.