Ultrastructure of apyrene and eupyrene spermatozoa from the seminal vesicle of Euptoieta hegesia (Lepidoptera: Nymphalidae)

Testis Morphology and Dichotomic Spermatogenesis in the Sugarcane Borer Diatraea saccharalis (F.) (Lepidoptera: Crambidae)

“…Although the spermatogenesis process described for the sugarcane borer presents similarities to that observed in the other lepidopterans (Mancini & Dolder 2001, 2003, 2004a, Friedlander et al 2005, this is the first study to report the detailed systematization of the dichotomic spermatogenesis process in Lepidoptera order.…”

16. Reproductive organs

“…Sperm ultrastructure has been examined in some Micropterigidae and Exoporia (Sonnenschein & Häuser 1990;Friedländer 1983 a, b;Hamon & Chauvin 1992), but monotrysian Heteroneura remain unstudied. Exemplars of several families across the Ditrysia have been surveyed by Phillips (1971): and Riemann & Gassner (1973), while single-species treatments include studies of members of Tortricidae (Friedländer & Benz 1981), Pyralidae (Ashrafl & Roppel 1973;Friedländer 1976Friedländer , 1983Friedländer & Miesel 1977, Wolf 1997, Bombycoidea-Saturniidae (Friedländer et al 1981) and -Bombycidae (Yasuzumi & Oura 1964King & Akai 1971 a, b;Friedländer & Gitay 1972), butterflies (LaiFook 1982 a, Zylberberg 1969, Mancini & Dolder 2001, Noctuoidea-Noctuidae (LaChance & Olstad 1988, Medeiros & Silveira 1996, -Lymantriidae (Leclercq-Smekens 1978 a, b;Garvey 2000) and -Arctiidae (Trandaburu et al 1976). The comprehensive treatise by Jamieson et al (1999) forms the principal basis for the following account, and it must be consulted for further details.…”

Spermatogenesis chronology in Achroia grisella Fabricius (Lepidoptera, Pyralidae) comparing eupyrene and apyrene spermiogenesis

“…The morphology of lepidopterous spermatozoa (França and Báo, 2000;Friedländer and Gitay, 1972;Friedländer and Miesel, 1977;Kubo Irie et al, 1998;Lai-Fook, 1982;Leviatan and Friedländer, 1979;Mancini and Dolder, 2001;Medeiros and Silveira, 1996;Phillips, 1971;Rieman, 1970), cytochemical components of spermatic cells (França and Báo, 2000;Friedländer, 1976;Friedländer and Gershon, 1978), and the modifications that these cells suffer in the male genital tract, after leaving the testis and inside the female genital tract (Garvey et al, 2000;Kubo Irie et al, 1998;Lai-Fook, 1982;Phillips, 1971;Riemann, 1970;Riemann and Thorson, 1971), are relatively well-known. However, the determining mechanisms of these variations and their biological meaning remain largely obscure.…”