Dasyplocia aequatorialis, Gonçalves & Pescador & Peters, 2020

Gonçalves, Inês C., Pescador, Manuel L. & Peters, Janice G., 2020, A new genus of Euthyplociinae from Ecuador (Ephemeroptera: Euthyplociidae), Zootaxa 4759 (1), pp. 107-112 : 111

Dasyplocia aequatorialis sp. nov. Gonçalves, Pescador & Peters

Nymph: Length: male (mature, black wing-padded) 25 mm; female (not mature) 29–31 mm. Specimen coloration fading therefore few color features are described.

Dorsolateral margins of head blackish anterior to antennal insertion; eyes black; ocelli faded but probably white with inner margin black; antennae with scape and pedicel same color as head, flagellum lighter ( Figs 1–3 ). Labrum with baso-lateral margins black ( Fig 8 ). Color of abdomen completely faded; gills purplish grey. Penes of mature nymph long, fused on basal 1/3, apparently with an apical non-sclerotized process ( Figs 6–7 ).

Etymology: “ aequatorialis “ – referring to country of Ecuador.

Material: Ecuador, Zamora-Chinchipe Province, small stream 19 km SE Paquisha , 1,010 km, 21.ix.1990, Pescador, M.L. leg., Holotype: 1 female nymph ( NMNH); paratypes: 1 mature male nymph (wings dissected, two slides) and 1 female nymph (mouthparts dissected and illustrated ( FAMU).

Figures

FIGURES 1–7. Dasyplocia aequatorialis gen n. sp. nov.: 1, 2 and 3—Head and thorax of mature male and two female nymphs; 4—Detail of foreleg, showing tibial (ptb) and tarsal (pta) projections; 5—Male abdomen, with subimago terminalia; 6 and 7—Developing male penes (photograph and drawing).

FIGURES 8–16. Dasyplocia aequatorialis gen n. sp. nov.: 8—Labrum, dorsal view; 9—Hypopharynx, ventral view; 10—Detail of left mandible: inner and outer incisors and prostheca; 11—Detail of right mandible: inner and outer incisors; 12—Labium, ventral view (left) and dorsal view (right); 13—Maxilla; 14—Detail of apex of 3rd segment of maxilla; 15—Apex of protonal flanges and apical spine of prothorax; 16—Gill I.