In the first cytogenetic study of the recently proposed family Myerslopiidae the male karyotype of Mapucheachilensis (Nielson, 1996) was analyzed using conventional chromosome staining, AgNOR- and C-bandings, and fluorescence in situ hybridization (FISH) with 18S rDNA and (TTAGG) n telomeric probes. A karyotype of 2n = 16 + XY, NOR on a medium-sized pair of autosomes, subterminal location of C-heterochromatin, and presence of (TTAGG) n telomeric sequence were determined. Additionally, the male internal reproductive system was studied.
Keywords: Auchenorrhyncha; C-heterochromatin; Cicadomorpha; Hemiptera; Karyotype; Mapucheachilensis; Membracoidea; Myerslopiidae; NOR; TTAGG telomeric sequence; rDNA.