Die automiktischen Vorg�nge im Ei der tetraploid parthenogenetischen Solenobia triquetrella F. R. (Psychidae, Lepid.)

Significance of Parthenogenesis in the Evolution of Insects

“…In his earlier papers, Seiler [e.g., Seiler & Gessner (78) ] claims that in the parthenogenetic races of the bagworm moth Solenobia triquetreUa the cleavage nuclei also fuse in twos, the zygoid chromosome number being thus restored. Later he [Seiler (76) ; Seiler & Shaffer (80)] has established that in the diploid parthenogenetic race, at least, the embryo rises from "Rich tungs-Kopulations-Kern," which has resulted from the fusion of the two central haploid polar nuclei.…”

Parthenogenesis in Hexapoda: holometabolous insects

“…In the Psychidae, the diploid bisexual form of Dahlica triquetrella (Hübner, 1812) occurs more or less locally in central Europe, whereas several diploid and tetraploid thelytokous forms are widespread in Europe and North America (Elzinga et al., ; Robinson, ; Seiler, , ; Seiler & Gessner, ; White, ); in all parthenogenetic forms, ploidy restoration is achieved via central fusion. Similarly, the tetraploid form of Dahlica lichenella (Linnaeus, 1761) is more widely distributed in Europe than its diploid bisexual form.…”