Морфометрический анализ гениталий Bryoxena centralasiae (Staudinger, 1882) (Lepidoptera, Noctuidae)

Abstract

The morphometric analysis of the male and female genitalia of Bryoxena centralasiae was conducted; both male and female genitalia demonstrate a wide variability range. The following correlations were found in the genitalia: in male genitalia, between genital capsule length and valva length, as well as between the length of the 3rd, 4th and 5th spikes on the vesica; in female genitalia, between rear and front apophyses length, the length and width of postvaginal plate and some others. In some genitalia structures of males, the variability level is much higher than in female genitalia structures, but in general the average variability is almost identical in both sexes. The most variable structures in the genitalia are spikes on the vesical on the aedoeagus, the least variable structures are the aedoeagus and vesica length. It is impossible to identify any regional groups using either external features or morphometric parameters of the genitalia; it demonstrates the high incidence of crossbreeding between populations and absence of subspecies on the territory of Kyrgyzstan.