Bioacoustics of Camptonotus

Redescription. Small to medium size (body length 11–15 mm ). Coloration. Yellowish or ocher with brown tones, and generally with the posterior margin of tergites outlined in black or dark brown; last tergites usually brown dorsally ( Fig. 1 ). Head. Space between antennal sockets 1.5 times wider than the antennal scape; ocelli rounded, small, and diffuse; maxillary palps elongated, fourth and fifth segments similar in size, third segment a little smaller than the next one, fifth segment slightly dilated at the apex; labial palpi robust, the last segment noticeably dilated and with truncated apex ( Fig. 1A ). Thorax. Pronotum narrow and smooth, with quadrangular disc ( Fig. 1B ); lateral lobes almost as wide as high, with v-sulcation decided, anterior and posterior margins rounded ( Fig. 1A ). Auditory spiracle below the lower margin of the lateral lobe of the pronotum armed with a small conical fold, attached on the mesothorax. Sternum lobes are rounded and narrow, without prolongations; mesosternum quadrangular with the anterior margin 1.5 wider than the posterior one; metasternum triangular and narrow. Legs. Fore coxa armed with a tubercle dorsally. Fore and mid femora unarmed; fore and middle tibiae with three medium-size spurs on each ventral margin and one spur on each side of the ventral-apex; hind femur robust, ventrally armed; hind tibia armed with small spines dorsally and few sinules ventrally, apex with three spurs on each side, being the upper and mid one the longer and similar in length ( Fig. 1A ). Wings. Absent, completely apterous, without cuticular folds or projections ( Fig. 1B ). Abdomen. Stridulatory apparatus present on the sides of the first and second tergites. Last tergite little produced, and posterior margin rounded. Cerci short, almost cylindrical; paraprocts unmodified. Subgenital plate almost as long as wide, posterior margin with a central v-shaped notch, stylli cylindrical and mid-sized. Female. Similar coloration as the males, but with the last two or three tergites black dorsally. Last tergite without modifications; subgenital plate subtriangular; ovipositor as long as the hind femur, curving moderately upwards. Taxa included. Camptonotus carolinensis (Gerstaecker, 1860) ( type species) and C. affinis Rehn, 1903 .