Morphology, Histology and Ovary Development of the Female Reproductive System ofSpilostethus pandurus(Scopoli) (Hemiptera: Lygaeidae)

Notes on the female reproductive system of the red‐and‐black froghopper, Cercopis vulnerata Rossi, 1807 (Hemiptera: Cercopidae)‐light and electron microscopy studies

“…The oocyte development in the vitellarium parts of ovarioles is synchronous. The same synchrony in oocyte maturity is found in some hemipteran insects, for example in Steingelia gorodestskia (Steingeliidae), Porphyrophora polonica (Linnaeus, 1758) (Margarodidae), Graphosoma lineatum (Linnaeus, 1758) (Pentatomidae), Spilostethus pandurus (Scopoli, 1763) (Lygaeidae) and Gerris lacustris (L.) (Gerridae) (Elelimy et al, 2017; Koteja et al, 2003; Özyurt et al, 2013; Özyurt Koçakoğlu et al, 2019; Szklarzewicz, 1998b). Although, in Gossyparia spuria (Modeer, 1778) (Eriococcidae) and D. coccus (Dactylopiidae), the ovarioles develop asynchronously (Ramírez‐Cruz et al, 2008; Szklarzewicz, 1998a).…”

“…For example, in C. vulnerata, there are cylindrical epithelial cells in the previtellogenic oocyte, cubic epithelial cells in the vitellogenic oocyte and squamous epithelial cells in the choriogenic oocyte. The follicular cells surrounding previtellogenic and vitellogenic oocytes of S. pandurus (Lygaeidae) are cylindrical, they transform into cubical shapes in choriogenic oocytes, as in Elelimy et al (2017). However, in previtellogenic oocytes of G. lacustris (Gerridae), the follicular epithelium is multilayered, follicular cells in early vitellogenic oocytes are columnar and cubic, follicular cells in choriogenic oocytes are squamous (Özyurt Koçakoğlu et al, 2019).…”

“…Hemiptera is an economically important and widely distributed class of insects. There are various publications on the morphology of the reproductive system of these insects (Blowers & Moran, 1967; Cheung, 1994; Elelimy et al, 2017; Kartal & Zeybekoğlu, 1999; Mattison et al, 2017; Özyurt et al, 2013; Özyurt Koçakoğlu et al, 2019; Souza et al, 2014). However, there is no study of the family Cercopidae is considered.…”

“…Hemipteran insects have a telotrophic type of ovary, that is, nutrients are mainly supplied by nurse cells or trophocytes found at the upper end of the ovaries (Huebner, 1981). In each ovariole, there is a terminal filament, a germarium, a vitellarium and a pedicel (Elelimy et al, 2017). The pedicels unite with the two lateral oviducts in a common oviduct that opens into the genital chamber (Chapman, 1998; Nijhout, 1998).…”

High-quality host plant diets partially rescue female fecundity from a poor early start

“…These eggs are then stored in oviducts in the abdomen until females are ready to fertilize and lay them [53]. In N. femorata (LA Cirino 2018, unpublished data) and other insects [8,[54][55][56], ovariole number is canalized. We found that the response to poor early food conditions in N. femorata is to develop slower and grow smaller bodies without altering ovariole number, which we found in a separate study (LA Cirino 2018, unpublished data).…”