Bioacoustics of Philoscirtus cordipennis

( Figs. 12–14 ) Holotype male: Tanzania , Nguru Mountains , submontane forest, 1100–1250 m , January 2018 , collected between 6°03´12.1´´S 37°33´38.7´´ E and 6°04´01.3´´ S 37°34´24.2´´ E . Depository: CCH. 8 males , 9 females , same data as holotype and February, March, June, July and November 2017 , January 2018 , March 2019 and March 2020 . Depository: CCH. Description. Male. General colouration. Predominantly green with some brown to black and white markings at posterior end of tegmina and dorsally at the posterior margins of abdominal segments. Tibiae and knees brown and white around joints ( Fig. 12 A, B ). Head and antennae.—Antenna very long, 9–10 cm . As in P. cordipennis cordipennis and P. viridulus face green with pattern of light green to yellowish patches in living insect. Fastigium verticis with numerous tubercles forming kind of „crown“ ( Fig. 13 C ) and thus similar to fastigia of vertex of nominate subspecies and P. viridulus . Thorax.—Fore femora armed with 3 inner stout short black spines; posterior ends of femora with pointed pair of black-tipped spurs. Mid femora with 1–3 (-5) shiny black stout spines on outer side, also with a pair of more stout and pointed black-tipped spurs. Hind femora with a ventral double row of 7–8 brown to black spines and a pair of stout and pointed spurs at lunules with a very broad shield-like base. All tibiae with 4 rows of densely set spines along length. Tegmina at bit longer than posterior margin of segment 2, with conspicuous black markings at posterior margins and centrally a white patch ( Fig. 12 B ). The stridulatory file is found on the underside of the left tegmen and is similar to the other two known Philoscirtus species. Abdomen.—Cerci green, at tips brown, short and rather stout, slightly inwardly curved with an apical dent and a tiny dent just before the tip on the inner side as in the nominate subspecies and P. viridulus . Subgenital plate deeply v-shaped incised, apical part black, with tiny styli ( Fig. 13 D ). Female. Considerably larger than male but with more spines at hind femora (9–10 black-tipped spines). Fastigium verticis broad bowl-like structure with less pronounced tubercles than male ( Fig. 14 C ). Subgenital plate broad with u-shaped median incision ( Fig. 14 D ). Nymphs. Similar to the adults ( Fig. 12 F ).