Cytotaxonomy of the Prosimulium (Diptera: Simuliidae) of Western Asia Author Adler, Peter H. Author S, Ümit Author Irin text Zoological Journal of the Linnean Society 2014 2014-05-20 171 4 753 768 http://dx.doi.org/10.1111/zoj.12150 journal article 10.1111/zoj.12150 0024-4082 5310762 PROSIMULIUM FRONTATUM TERTERYAN Two samples totalling 27 larvae of this species were available from north-western Armenia . Larvae were characterized by four fixed inversions: IS-20 , IS-23 ( Fig. 2 ), IL-12 ( Fig. 6A ), and IIIL-25 ( Fig. 11 ). Sex chromosomes were microscopically undifferentiated (X 0 Y 0 ). The transformed centromere region of chromosome I was markedly elongated; for example, section 18′ had additional band elaboration and section 19′ consistently was stretched ( Fig. 2 ), compared with the more compact condition in the other studied taxa ( Figs 4 , 5 ). Two autosomal inversions, IS-24 ( Fig. 2 ) and IIS- 12 ( Fig. 8B ), were found in more than two-thirds of the homologues ( Table 2 ). Ectopic pairing of centromere bands was infrequent. Six larvae carried infections with a probable new species of microsporidium with spores similar to those of Weiseria laurenti Doby & Saguez .