Harpagobaetis Mol 1986

Cruz, Paulo Vilela & Hamada, Neusa, 2019, A new species of Harpagobaetis Mol, with amended diagnosis of the genus, and new considerations on predatory species of Baetidae (Ephemeroptera) from South America, Zootaxa 4551 (2), pp. 195-210 : 196-197

Harpagobaetis Mol 1986

Harpagobaetis Mol 1986: 63 , Orth et al. 2000: 35, Salles & Lugo-Ortiz 2002: 155, Domínguez et al. 2006: 159, Falcão et al. 2010: 40 , Falcão et al. 2011: 537.

Type-species: Harpagobaetis gulosus Mol , original designation.

Diagnosis. Male imago (Adapted from Falcão et al. 2010). 1) forewing with paired marginal intercalary veins (Fig. 10a in Falcão et al. 2010); 2) hind wing present, with two complete longitudinal veins (Figs 10b and 11 in Falcão et al. 2010); 3) costal projection of hind wing pointed, placed in the basal third of anterior margin, cross veins absent (Figs 10b and 11 in Falcão et al. 2010); 4) forceps three-segmented, segment I with bulbous base, segment III long, about 3.0× as long as wide (Fig. 12 in Falcão et al. 2010). Mature Nymph (Adapted from Domínguez et al. 2006). 1) antenna 1.5–2.0 × as long as head capsule (adapted); 2) frons without frontal keels (new); 3) clypeus reduced in length ( Fig. 1D ) (new); 4) labrum wider than long, width more than 2.0 × the length ( Fig. 1D ) (adapted); 5) superlinguae of hypopharynx with lateral expansion ( Fig. 4A ) (adapted); 6) mandibles long and narrow, incisor completely fused ( Figs 3D, 3F ) (adapted); 7) mandibles with molar shaped like an incisor ( Figs 3D, 3F ) (adapted); 8) canines of galea-lacinia long and slender ( Fig. 3E ) (adapted); 9) labium elongated ( Fig. 4B ) (adapted); 10) inner margin of labial palp segment II without distomedial projection ( Fig. 4B ); 11) hind wing pads present (new); 12) tarsal claws with two rows of triangular denticles increasing in size distally (adapted); 13) surface of abdominal terga without scales or scale-like setae (new); 14) gills on segments I–VII ( Fig. 1C ) (new); 15) paracercus as long as cerci ( Fig. 1A ).

Figures

FIGURE 1. Harpagobaetis brigada sp. nov. A. dorsal habitus, B. details of body (dorsal habitus); C. details of abdominal terga and gills; D. frontal view of head; E. lateral view of head; F. frontal view of head, details of mouthparts.

FIGURE 3. Harpagobaetis brigada sp. nov. Holotype. A. antenna (medial third); B. labrum (left v.v., right d.v.); C. detail of distal margin of labrum (left v.v., right d.v.); D. left mandible (d.v.); E. maxilla (d.v.); F. right mandible (d.v).

FIGURE 4. Harpagobaetis brigada sp. nov. Holotype. A. hypopharynx (left v.v., right d.v.); B. labium (left v.v., right d.v.).