Prosimulium, Adler & S & Irin, 2014

Adler, Peter H., S, Ümit & Irin, 2014, Cytotaxonomy of the Prosimulium (Diptera: Simuliidae) of Western Asia, Zoological Journal of the Linnean Society 171 (4), pp. 753-768 : 760

PROSIMULIUM SP. NOV.

A sample of 61 larvae of this small species from Site 12a was fixed for IIS-3 ( Fig. 8A ) and IIL-1 ( Fig. 9 ) of Basrur (1959). The sex chromosomes were undifferentiated and only one rare polymorphism, a heteroband in section 11, was detected ( Table 7). Larvae, especially when mature (i.e. with dark gill histoblasts), typically had at least several nuclei with ectopic pairing of the telomeres of any two to four of the six arms.

Figures

Figure 8. Chromosome arm IIS. A, Prosimulium tomosvaryi (female). Relative to the standard sequence, IIS-3 and IIS- 11 are present. B, Prosimulium frontatum (female) showing heterozygous inversion IIS-12; its breakpoints are indicated by arrows on the standard homologue. Limits of IIS-13 of Prosimulium rachiliense ‘B’ are indicated by a bracket. Fixed rearrangements are italicized and polymorphic rearrangements are in standard type. Abbreviation: RoB, ring of Balbiani.

Figure 9. Chromosome arm IIL of Prosimulium tomosvaryi [upper sequence: male; lower: composite male (sections 66– 70) and female (sections 64–65, 71–74)]. Relative to the standard sequence, IIL-1 is present. Limits of IIL-3 of P. tomosvaryi and IIL-12 of Prosimulium rachiliense ‘B’ are indicated by arrows and a bracket, respectively. Fixed rearrangements are italicized and polymorphic rearrangements are in standard type. Abbreviations: C, centromere; Pb, parabalbiani; RoB, ring of Balbiani; “5”, group of 5 marker.