Bioacoustics of Andeogryllus

Description. Body small and mid-sized ( 12-15 mm ), color dark brown or yellowish-brown, without long white rings at the base of the antenna or legs. Body and legs highly setose ( Figs. 1 , 3 ). Head as wide as pronotum, rounded and smooth ( Fig. 1B , 3B ); almost as wide as high in frontal view; episternal suture straight ( Figs. 1C , 3C ). Vertex convex. Eyes ovoid, not protruding. Circular lateral ocelli, central ocellus ovoid and together forming a flat triangle. Eyes and antennal pits are located very low on the face, very close to episternal suture, and almost at the same level, the antennal pits slightly more dorsal than the eyes’ lower margins. Fastigium wide almost 1.5 times as wide as scape. Maxillary palpi mid-sized, third and fourth subequal and cylindrical, the fifth dilated at apex and subtriangular shaped ( Figs. 1A, 1C , 3A, 3C ). Thorax. Pronotal disc wider than long, covered by dense hairs; anterior margin concave, posterior margin straight and wider than the anterior margin ( Figs. 1B , 3B ); lateral lobules square as wide as high and with rounded lateral edge, ventral margin straight ( Figs. 1A , 3A ). Prosternum unarmed with the posterior margin constricted; mesosternum rectangular with posterior margin curled-angled; metasternum broader than mesosternum, slightly expanded and the pentagonal shaped, posterior margin convex. Meso- and metanotum without glandular pits. Legs. Femora without spines; fore tibia with tympanum only on the outer side, ovoid and elongated, apex with three spurs, inner ventral spur longest; mid-tibia with three apical spurs and with inners ones longer than outer; hind tibia with four spurs on each dorsal margin, and three spurs at the apex on both sides. First tarsomeres of the hind leg furrowed dorsally; with two rows of strong dorsal spines, getting stronger toward apex, apical spines the biggest. Wings. Fore wings ovoid, covering the abdomen, shiny and moderately thickened tegmina. Stridulation area complete; harp with two diagonal veins; mirror almost as wide as long, divided by a diagonal vein; basal area with only two veins; chordal area with three veins; apical area reduced and with reticulated veins. Lateral field with four to five longitudinal, parallel veins ( Figs. 1B , 3B ). Abdomen. Tergites are covered by short hairs; subgenital plate short, longer than wide, apex rounded. Male genitalia. Pseudepiphallic sclerite rectangular, very short, almost longer than wide, median lophi longer than the lateral lophi, quadrangular and with a small medial incision, side edges with hairs ( Figs. 2A, 2B, 2D , 4A, 4B, 4D ); lateral lophi slightly prolonged; pseudepiphallic apodemes short ( Figs. 2A , 4A ); pseudepiphallic paramere short, slightly longer than the lateral lophi and with dilated and truncated apex ( Figs. 2B, 2C , 4B, 4C ). Rami not separated from each other anteriorly, but well separated from pseudepiphallic sclerite ( Figs. 2A, 2B, 2C , 4A, 4B, 4C ). Ectophallic fold lanceolated, sclerotized over its whole length and in ventral view with a groove from base to apex ( Figs. 2B, 2C , 4B, 4C ). Dorsal cavity moderately developed. Endophallic sclerite mostly membranous and short ( Figs. 2B , 4B ). Female. Unknown.

1. Dark brown color throughout the body ( Fig. 1 ). The cell of the posterior margin of the mirror, occupying a third of the length of the mirror ( Fig. 1B ). Stridulation file with 102-107 funtional teeth ( Fig. 1D ). Ectophallic fold not surpassing the apex of the median lobe ( Figs. 2B, C, D ). Lateral lobe shaped like a shoulder blade and with a straight apex ( Figs. 2A, B ).............................................................................................. A. magdalenensis n. sp. ‒ Brown coloration with ocher regions especially in all femurs ( Fig. 3 ). The cell of the posterior margin of the mirror, occupying a fifth of the length of the mirror ( Fig. 3B ). Stridulation file with 78 funtional teeth ( Fig. 3D ). Ectophallic fold surpassing the apex of the median lobe ( Figs. 4B, C, D ). Lateral lobe triangular shaped and with a slightly prolonged and rounded apex ( Figs. 4A, B )................................................................................ A. caucensis n. sp.