INTERNATIONAL JOURNAL OF INSECT MORPHOLOGY & EMBRYOLOGY VOLUME 20, 1991 TITLE SECTION, VOLUME CONTENTS AND AUTHOR INDEX Founder & Editor-in-Chief: Associate Editors: A. P. GUPTA H. Altner, Germany H. Ando, Japan B. Baccetti, Italy J. Bitsch, France J. Chaudonneret, France M. Friedlander, Israel G.H. Gerber, Canada J.G. Hildebrand, U.S.A. E. Huebner, Canada S.Mclver, Canada R.L. Pipa, U.S.A. K. Sander, Germany U. Smola, Germany R.A. Steinbrecht, Germany R. M. Warn, U.K. PERGAMON PRESS Oxford - New York -: Seoul - Tokyo International Journal of INSECT MORPHOLOGY & EMBRYOLOGY Founder and Editor-in-Chief Professor A. P. Gupta Department of Entomology and Economic Zoology, Rutgers University, New Brunswick, New Jersey 08903, U.S.A. Associate Editors Prof. H. ALTNER Prof. M. FRIEDLANDER Prof. R. L. Pipa Regensburg, Germany Beer-Sheva, Israel Berkeley, CA, U.S.A. Prof. H. ANDO Dr G. H. GERBER Prof. K. SANDER Nagano, Japan Winnipeg, Canada Freiburg, Germany Prof. B. BACCETTI Prof. J. G. HILDEBRAND Prof. U. SMOLA Siena, Italy Tucson, AZ, U.S.A. Munich, Germany Prof. J. Birscu Prof. E. HUEBNER Prof. R. A. STEINBRECHT Toulouse, France Winnipeg, Canada Seewiesen, Germany Prof. J. CHAUDONNERET Prof.S. McIver Dr R. M. WARN Dijon, France Guelph, Canada Norwich, U.K. Aims and Scope The Journal will publish original contributions on all aspects of gross morphology, paleomorphology, macro- and microanatomy, ultrastructure, functional and experimental morphology, and embryonic and post-embryonic development, including experimental embryology of insects; and similar studies of other related arthropods, which have direct bearing on our understanding of insect morphology and embryology. In addition, reviews developing new concepts, hypotheses and theories, and a limited number of notes and book reviews will be published. All papers submitted to the Journal must clearly relate to the above-mentioned aspects of morphology and embryology. 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Accordingly, the publishers, the editorial board and editors and their respective employees, officers and agents accept no responsibility or liability whatsoever for the consequences of any such inaccurate or misleading data, opinion or statement. CONTENTS OF VOLUME 20 Number 1/2 Shao-nan Li and Yu-zhen Chang Ultrastructure of the larval stemmata, the stemmata nerves and the optic neuropils of the larval cotton bollworm, Heliothis armigera (Hubner) (Lepidoptera: Noctuidae) G. Del Bene, R. Dallai and 15 Ultrastructure of the midgut and the adhering tubular D. Marchini salivary glands of Frank/iniella occidentalis (Pergande) (Thysanoptera: Thripidae) L. H. Field 25 Mechanism for range fractionation in chordotonal organs of Locusta migratoria (L) and Va/anga sp. (Orthoptera: Acrididae) K. Ikeda-Kikue and H. Numata 41 Compensatory regeneration of antennae after removal of the distal segment in Aiptortus clavatus (Thunberg) (Heteroptera: Alydidae) D. G. Mouzaki and L. H. Margaritis 51 Choriogenesis in the medfly Ceratitis capitata (Wiedermann) (Diptera: Tephritidae) K. Werner, K. Moutairou and 69 Formation and structure of the surface coat in the midgut of G. Werner a waterstrider, Gerris najas deg. (Heteroptera: Gerridae) Announcement 79 Number 3 K. T. A. Ross and M. Anderson 83 Ultrastructure of the funicular sensilla of the cabbage root fly, Delia radicum L. (Diptera : Anthomyiidae) S. Wada 103 Morphologische regionale Differenzierungen der Retina und des Facettenrasters vom Komplexauge' der Pipunculidae (Diptera : Cyclorrhapha): ein neuartiges retinales Muster der Fliegen (Brachycera) E. Gaino and M. Mazzini 119 Aflagellate sperm in three species of Leptophlebiidae (Ephemeroptera) F. E. Zarani and L. H. Margaritis 127 Fine structure and morphogenesis of the micropylar apparatus in the Medfly Ceratitis capitata (Wiedemann) (Diptera : Tephritidae) D. Gallois and P. Cassier 141 Cytodifferentiation and maturation in the male accessory glands of Locusta migratoria migratorioides (R. and F.) (Orthoptera : Acrididae) T. Nagashima 157 Postembryonic development and homology of external genitalia in Galloisiana nipponensis (Caudel et King) (Notoptera : Grylloblattidae) Y. Crouau and B. Crouau-Roy 169 Antennal sensory organs of a troglobitic coleoptera, Speonomus hydrophilus jeannel| (Catopidae) : an ultra- structural study by chemical fixation and cryofixation Announcement Number 4/5 E. Rosciszewska 189 Ultrastructural and histochemical studies of the egg capsules of Perla marginata (Panzer, 1799) and Dinocras cephalotes (Curtis, 1827) (Plecoptera : Perlidae) M. Nguyen Duy-Jacquemin and 205 Spatial organization of the antennal lobe in Cy/indroiu/us G. Arnold punctatus (Leach) (Myriapoda : Diplopoda) R. Dallai and B. A. Afzelius 215 Sperm flagellum of Dacus oleae (Gmelin) (Tephritidae) and Drosophila melanogaster Meigen (Drosophilidae) (Diptera) R. Dallai, G. Del Bene and 223 The ultrastructure of Malpighian tubules and hindgut of D. Marchini Frankliniella occidentalis (Pergande) (Thysanop- tera : Thripidae) T. Itoh, F. Yokohari, 235 External morphology of sensilla in the sacculus of an T. Tanimura and Y. Tominaga antennal flagellum of the fruit fly Drosophila melanogaster Meigen (Diptera : Drosophilidae) C. Bareth et 245 Ultrastructure des phanéres distaux (a1) des appendices du L. Juberthie-Jupeau premier sternite abdominal chez Campodea sensillifera (Condé et Mathieu) (Insecta : Diplura) Number 6 A. M. Hantschk 259 Functional morphology of accessory circulatory organs in the legs of Hemiptera K. T. A. Ross and M. Anderson 275 _~—s Sensilla of the larvae of De/ia radicum L., D. floralis F. and D. antiqua MG. (Diptera : Anthomyiidae) H. Uemiya and H. Ando 283 Mesoderm formation in a springtail, 7omocerus ishibashii Yosii (Collembola : Tomoceridae) M. J. Faucheux 291 Morphology and distribution of sensilla on the cephalic appendages, tarsi and ovipositor of the European sunflower moth, Homoeosoma_ nebulella Den. & = Secniff. (Lepidoptera : Pyralidae) S.C. Henderson and M. Locke 309 Regional differences in the apical F-actin cytoskeleton of silk gland cells of Calpodes_ ethlius (Stoll) (Lepidoptera : Hesperiidae) Scientific Note A. Giuffrida 319 Connecting flagellar elements in the sperm of Eyprepocnemis plorans (Charpentier) (Orthoptera: Acrididae) Title Section, Volume Contents and Author Index, Volume 20, 1991