Figure 7 in Nearctic-Palaearctic relationships of black flies (Diptera: Simuliidae): chromosomal and morphological evidence for the Prosimulium magnum species group in Japan

Figure 7. Chromosome arm IIIL of male larva of Prosimulium yezoense from Shikoku Island, Japan, 5 April 2009. Section numbers refer to the Prosimulium standard map of Ottonen (1966). Relative to the standard sequence, fixed inversion IIIL-14 is present. Breakpoints of sex-linked inversions IIIL-15 and IIIL-16 are shown. Arrow in section 83 indicates extra band in one homologue, marking the X chromosome (X1). C, centromere (thick in X chromosome, thin in Y chromosome); S, shield marker; T, triad marker; ∗, additional heterochromatin.