Hebridae, Amyot Serville, 1843

Stella, César Adrián & Pall, José Luis, 2018, A new species of Hebrus (Hemiptera: Heteroptera: Hebridae) from Argentina, Zootaxa 4457 (3), pp. 474-480 : 478

Key to the species of Hebridae from Argentina

(Modified from Konopko et al. 2009)

1- Antenna with segments robust and thick ( Fig.7 ); segment IV subequal in length to segment I.......... Merragata hebroides

- Antenna with segments slender; segment IV longer than segment I ( Figs. 4 , 8 )..................................... 2

2- Antennal segment IV without constriction ( Fig. 8 ); male with a subapical spine on the posterior surface of the hind tibia..................................................................................... Lipogomphus lacuniferus

- Antennal IV segment with a constriction in the middle (false membranous articulation), so that the antenna appears to possess five segments ( Fig. 4 ); male lacking a subapical spine on the posterior surface of the hind tibia ( Hebrus )................ 3

3- Body length approximately 3.00 mm; bucculae brownish, ventrally straight and subsequently slightly concave; clavus marked on each side with a small, basal, whitish spot adjacent to metanotal elevation and without pale spots on the membrane ( Fig. 9 ). Metanotal elevation with lateral and hind margins carinate, with prominent median carina sharply obliquely narrowed on sides along apical two-fifths..................................................................... Hebrus engaeus

- Body length between 1.84 and 1.95 mm; bucculae yellowish, ventrally curved, posteriorly conical and slightly elevated; clavus with a pearl-white marking from the base until almost to the apex of the metanotal elevation (3/4 distance) and four distinct whitish spots on the membrane ( Figs. 1, 2 ). Metanotal elevation with raised edges and strong, straight median carina, flanked by two submedial depressions....................................................... Hebrus alvearensis sp. nov.

Figures

FIGURES 7–9. Dorsal views of (7) Merragata hebroides, (8 Lipogomphus lacuniferus, (9) Hebrus engaeus. Scale bars = 0.5 mm.

FIGURES 3–5. Hebrus alvearensis sp. nov., male, holotype: (3) lateral view of right buccula; (4) dorsal view of right antenna, (5) paramere of male genitalia.

FIGURES 1–2. (1) Hebrus alvearensis sp. nov. dorsal view, female paratype; (2) Hebrus alvearensis sp. nov. dorsal view, male holotype. Scale bar = 0.5 mm.