Bioacoustics of Andeogryllus magdalenensis

Description. In addition to characters to the genus: Male. Mid-sized. Predominantly dark brown ( Fig. 1 ), cephalic capsule with the dorsal surface from the vertex to the fastigium, between the middle of the antennal sockets and partially the clypeus black ( Figs. 1A, B ); surrounding area of ocelli, lower margin of genae and frons ocher; ocelli yellow; eyes greenish-brown; mesal portion of the fore and middle femur on the inner side yellowish-brown ( Fig. 1C ); hind femur brown with dark brown stripes alternating with faint and narrow yellowish-brown stripes. The cell of the posterior margin of the mirror, occupying a third of the length of the mirror ( Fig. 1A ). Stridulation file with 102-107 funtional teeth (length 3.3 mm and 31-33 teeth per mm) ( Fig. 1D ). Tarsomeres of hind leg with 7-8 outer and 5-6 inner dorsal spines. Genitalia: Median lophi subdivided into two plates ( Figs. 2A, B ); dorsal plate rounded distally and with two denticulations outward near the apex on each side ( Fig. 2A ), ventral plate obliquely truncated and constricting at connection with lateral lobes ( Fig. 2B ), medial incision V-shaped, narrow and shallow; lateral lobe shaped like a shoulder blade and with a straight apex ( Figs. 2A, B ). Pseudepiphallic parameres with truncated and wavy apex ( Figs. 2C, D ), dilated and rounded inner margin, then steeply tapering into a peduncle towards the base ( Fig. 2 B ). Ectophallic fold not surpassing the apex of the median lobe ( Figs. 2B, D ). Female. Unknown. Measurements (in mm.). Holotype : LB: 14.5. Pr: 3.2. Teg: 8.5. HF: 11.5. HT: 8. Paratypes : LB: 14-15. Pr: 3-3.5. Teg: 8-8.5. HF: 11-12. HT: 8-8.5.