Mahmut Erbey

Morphology of eggs and spermatheca of Odontotarsus purpureolineatus (Heteroptera, Scutelleridae)

The morphology of the spermatheca and eggs of Odontotarsus purpureolineatus were studied by optical microscopy and scanning electron microscopy. The spherical eggs were about 1.35 mm long and 1.09 mm wide. The egg batches generally consist of 13–14 eggs. The egg surface is covered by polygonal (hexagonal and pentagonal shapes prevail) ridges and tiny chorionic tubercles. There were 8–10 aero-micropylar processes between the polygons. The spermatheca of O. purpureolineatus is characterized by a spherical spermathecal bulb, a pumping region, a flange of pump and dilation of spermathecal duct. Spermathecal processes and a median spermathecal dilation with sclerotized rod are missing. The spermathecal bulb and the pumping region possess many pores.

Surface morphology of the spermatheca of Dolycoris baccarum (Linnaeus, 1758) (Heteroptera: Pentatomidae).

ABSTRACT: The morphology of the spermatheca of Dolycoris baccarum (Linnaeus, 1758) (Heteroptera: Pentatomidae) was examined using both light microscopy and scanning electron microscopy (SEM). The spermatheca of D. baccarum is characterized by the presence of a spherical spermathecal bulb that appears sclerotized and is covered with multiple pores. The spermathecal duct, pumping region with distal and proximal flanges and dilation of spermathecal duct are illustrated. The pumping region contains both distal and proximal flanges. The spermathecal dilation is striated and the walls are muscular. The proximal area of the spermathecal duct is fairly long relative to the distal area and is close to the opening of the vagina. Two alternately placed V-shaped sclerites and two ring sclerites occur in the genital chamber.

Morphology of spermathecae of some pentatomids (Hemiptera: Heteroptera: Pentatomidae) from Turkey.

The spermathecal morphology of nine species belonging to the Pentatomidae (Insecta: Heteroptera) were compared by optical and scanning electron microscopy (SEM). Among the examined species [Rhaphigaster nebulosa (Poda 1761), Palomena prasina (Linnaeus 1761), Piezodorus lituratus (Fabricius 1794), Graphosoma lineatum (Linnaeus 1758), Graphosoma semipunctatum (Fabricius 1775), Aelia albovittata (Fieber 1868), Codophila varia (Fabricius 1787), Ancyrosoma leucogrammes (Gmelin 1790), Nezara viridula (Linnaeus 1758)], all spermathecae contained a spermathecal bulb (reservoir), a pumping region, distal and proximal flanges, proximal and distal spermathecal ducts, dilation of spermathecal duct and a genital chamber containing two ring sclerites, but each species had a different spermathecal morphology.

The Ultrastructural Analysis of Scales in Brachypera Capiomont, 1868 and Hypera Germar, 1817 (Coleoptera: Curculionidae: Hyperinae)

ABSTRACT: The scales that are external morphological characters in Brachypera Capiomont, 1868 and Hypera Germar, 1817 (Curculionidae: Hyperinae) were examined using light and scanning electron microscope (SEM). Dried museum materials were used in this study. After softening the materials, abdomens were removed to reach elytra. Similarities and differences among the species are discussed. Although the scales look alike under the light microscope, they showed a rather different pattern with SEM. The fine structure of scales was shown to be useful for comparing species.

STRUCTURE OF THE SPERMATHECAE IN FOUR SPECIES OF DYSMACHUS (ASILIDAE: DIPTERA) FROM TURKEY: A SCANNING ELECTRON MICROSCOPE STUDY

ABSTRACT The spermathecae of four species of asilid genus Dysmachus (D. fuscipennis, D. picipes, D. praemorsus, and D. transcaucasicus) were studied with both light and scanning electron microcopy (SEM). There are three spermathecae in all the species examined. The spermathecae consists of a receptaculum seminis, a ductus receptaculum, an ejection apparatus, a furca, and an apodeme. Spermathecae of D. picipes, D. praemorsus, and D. transcaucasicus have just swollen at base but they extend apically like a duct; the spermatheca of D. fuscipennis is long and cylindrical. In all species; the receptacular surface and the spermathecal duct are covered by chitin layer. The ejection apparatus is generally located in the middle of spermathecal ducts, cotrolling the passage of spermatozoa. The surroundings of the ejection apparatus are covered by strong muscles that regulate its opening and closing.

Comparative Morphology of the Endophallus (Male Internal Genitalia) in Eight Species of the Genus Lixus Fabricius, 1801 (Coleoptera: Curculionidae: Lixinae): A Scanning Electron Microscope Study

The fine structure of the endophallus in eight species of Lixus beetles [L. (Callistolixus) furcatus Olivier, 1807; L. (Compsolixus) ascanii (Linnaeus, 1767); L. (Dilixellus) pulverulentus (Scopoli, 1763); L. (Epimeces) filiformis (Fabricius, 1781); L. (Epimeces) scolopax Boheman, 1835; L. (Lixochelus) cardui Olivier, 1807; L. (Lixoglyptus) circumcinctus Boheman 1835; and L. (Ortholixus) cinerascens Schoenherr, 1832 (Coleoptera: Curculionidae: Lixinae)] was compared. The armatures of the endophallus (internal sac) were investigated with scanning electron microscopy. The surface morphology of the endophalli is different in all species investigated and these characters could be useful for species identification.

A new species of weevil of the genus Rhytideres (Coleoptera: Entiminae: Alophini) from Inner Anatolia (Turkey).

A new species, Rhytideres evrani Erbey sp. n., is described from Inner Anatolia (Turkey), which is closely related to R. plicatus Olivier, 1790. http://www.zoobank.org/urn:lsid:zoobank.org:pub: AF936EEE-D6F2-4830-9D42-35CEF250E066

Ultrastructural analysis of the internal sac in several species of the weevil tribe Phyllobiini (Coleoptera: Curculionidae: Entiminae)

The ultrastructure of the internal sac was comparatively studied in five species of the genus Phyllobius Germar, 1824, two species of the genus Oedecnemidius Daniel, 1903 and one species of the genus Parascythropus Desbrochers, 1875, all belonging to the weevil tribe Phyllobiini (Coleoptera: Curculionidae: Entiminae). Similarities and differences between the species investigated are discussed. The total shape of internal sac is similar, but the teeth that are located in the ventral part are different in all the species. The details of the internal sac under the scanning electron microscope are important for taxonomy and could be used for separating similar species.

Morphology Of The Spermatheca Of Several Species Of Dysmachus (Diptera: Asilidae) From Turkey: A Scanning Electron Microscope Study, Second Part

ABSTRACT The spermathecae of four species of the asilid genus Dysmachus (D. cephalenus, D. obtusus, D. safranboluticus, and D. tricuspis) were studied with both light and scanning electron microscopy (SEM). There are three spermathecae the species examined. The spermatheca consists of receptaculum seminis (reservoir), ductus receptaculum (spermathecal ducts), ejection apparatus, apodemes of furca and furca. Receptaculum seminis of D. cephalenus, D. obtusus, D. safranboluticus and D. tricuspis have a swollen structure at the base but it extends apically like a duct. Sperm is kept in receptaculum seminis. In all species, the spermathecal ducts are covered by chitin layer. Spermathecal ducts are not connected with a common duct, but open separately to the bursa copulatrix. The ejection apparatus controls the passage of spermatozoa. The ejection apparatus are covered by strong muscles that regulate its opening and closing. Furca in D. cephalenus and D. tricuspis divided, with a triangular apodeme, lateral arms broad; Y-shaped in D. obtusus and D. safranboluticus.