Rhynchota .. . ainly Hemipterous (Protocimecesilurica, Moberg), from the Graptolite Slates of the SwedishUpper Ordovician. The Carboniferous evidence is presence of Ehynchota in Permian rocks is somewhatopen to argument, but on the whole trustworthy. When wecome to later times, we may refer to Scudders Tertiary Insectsof North America, the largest work of its kind, and one dealingconsiderably with the Rhynchota. According to Scudder, writingin 1890, the number of Tertiary Ehynehota of the whole worldwas then estimated at 569, of which 355 were Heteroptera and214 Homoptera. Exter
Rhynchota .. . ainly Hemipterous (Protocimecesilurica, Moberg), from the Graptolite Slates of the SwedishUpper Ordovician. The Carboniferous evidence is presence of Ehynchota in Permian rocks is somewhatopen to argument, but on the whole trustworthy. When wecome to later times, we may refer to Scudders Tertiary Insectsof North America, the largest work of its kind, and one dealingconsiderably with the Rhynchota. According to Scudder, writingin 1890, the number of Tertiary Ehynehota of the whole worldwas then estimated at 569, of which 355 were Heteroptera and214 Homoptera. External Anatomy.—The principal structural details of theHeteroptera are represented in the following outline figures ofMattiphus laticolUs, Westw., a species belonging to the British-Indian fauna. The structural terms here given agree with the ^ As enumerated in this volume. Biologia Centiali-Americana, Ehynehota, vol. i. INTRODUCTION. terminology used in the present work in tbe descriptions ofgenera and Fig. 1.—Body seen from above. A. Head. a. Antennae B. Pronotum. a. Eyes. C. Scutellum. b. Anterior prouotal D. Corium. angles. E. Membrane. h. Lateral or posterior F. Connexivuni. pronotal angles. d. Clavus. 1. Anterior legs. w. Intermediate legs. 3. Posterior
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