Account
What the sources say about this taxon, as written.
diagnosis · 
Plazi
Diagnosis A medium- to large-sized ground cricket (body length 6 to 9 mm ), dark gray to black colour. Males with spike-like tufts of bristles on each side of the suranal plate. Male tegmina with more than 180 teeth in stridulatory file; ratio PCSD /PCLD between 0.438 and 0.488 (mainland New Zealand only, excluding Chatham Islands ). Females with long ovipositor (4.0 mm to 6.7 mm ), strongly denticulate at apex. Disambiguation from Bobilla bigelowi generally requires microscope examination (see Table 1 ) or sound analysis.
description · Plazi
Description Refer to the detailed description in Swan (1972) . See also Fig. 10 in this work. MEASUREMENTS . See Tables 1 and 2 . Females are larger than males. SONG . Bobilla nigrova sings at a frequency of 8 kHz at 27°C, with a pulse rate of 10 to 15 pulses per second. Refer to the detailed description in McIntyre 1977a . See also Fig. 11 and Table 2 in this work. The low pulse rate (<15 pulses / s) is the main feature that distinguishes the song of B. nigrova from the song of B. bigelowi . Habitat and ecology Common and widespread in meadows and grasslands throughout New Zealand , including sports fields and urban parks, Bobilla nigrova is mainly active during the day; it may sing through the night on warm nights only. Bobilla nigrova is a seasonal species; adults are most frequently encountered in late summer and autumn. Bobilla nigrova forms mixed populations with B. bigelowi and with species in the genus Pteronemobius , with which it can easily be confused.