Bioacoustics of Andeogryllus caucensis

Description. In addition to characters to the genus: Male. Small-sized ( Fig. 3 ). Black-head with few and small ocher portions on the face, upper margin of the clypeus and the outer margin of the ocelli, mandibles with the base, the inner and distal edge black, the rest ocher ( Fig. 3C ). Pronotal disc black ( Fig. 3B ), lateral lobes dark brown, abdomen brown with yellowish portions, mainly in the intermembrane areas of the junction of each tergite and the base of the cerci ( Fig. 3A ). Tegmina light brown ( Fig. 3B ). Sternites and coxae pale yellow, fore and middle legs ocher with brown spots; hind femur with light ocher base without spots or stripes, distal three-quarters of hind femur yellowish-brown with brown transverse stripes, tibiae and hind tarsi brown ( Fig. 3A ). 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 (length 3.1 mm and 25 teeth per mm) ( Fig. 3D ). Tarsomeres of hind leg with 5 outer and 5 inner dorsal spines. Genitalia: Median lophi not subdivided ( Figs. 4A, B ), apex rounded, medial incision U-shaped, moderately deep, about one-third the length of the median lophi ( Figs. 4A, C ), side margins of median lophi with two denticulations outward near the apex on each side, in the middle length of the median lophi with a subtriangular prolongation on each side, then constricting at connection with lateral lobes ( Figs. 4A, C ). Lateral lobes triangular shaped and with a slightly prolonged and rounded apex ( Figs. 4A, B ). Pseudepiphallic parameres with truncated apex, progressively tapering towards the base ( Figs. 4B, D ). Ectophallic fold surpassing the apex of the median lobe ( Figs. 4A, B, D ). Female. Unknown. Measurements (in mm.). Holotype : LB: 12.5. Pr: 3.1. Teg: 8.5. HF: 10. HT: 7.8.