New species of awl-head katydids, Cestrophorus and Acanthacara, from the Andes of Ecuador (Orthoptera, Conocephalinae, Cestrophorini)

The Cestrophorini are small katydids of Ecuador’s montane rainforest bearing a prominent awl-shaped fastigium verticis. They unusual among Conocephalinae in lacking pre-tympanic ear chambers: their eardrums exposed on fore tibiae. There presently two genera, Cestrophorus Redtenbacher, 1891 and Acanthacara Scudder, 1869. Awl-head habitat includes both climax forest anthropogenically disturbed areas (e.g., pastures, roadsides) lower slopes the drainage volcanoes Aliso, Chiles Tungurahua. At night, males perch low vegetation stridulate to attract females. To three extant species, we add further seven, five . Male calling songs were recorded analyzed for all species spp. We describe discuss waveforms sinusoid transient sound pulses time frequency domains.