A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . Fro. 96. — Sternal view of pro-, meso-, andmetathorax of Furtieitln tipitiatu : j>*t. pra-ster-num, divided into 4 pit-ci.; xt, pro-, «/, meso-,at, metasternum ; ex, coxa; not, notum. processes, or apodemes, which pass inward and also form attach-ments for the muscles. Those passing up from the sternumform the entothorax of Audouin,and the process of each thoracicsegment is called respective
A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . Fro. 96. — Sternal view of pro-, meso-, andmetathorax of Furtieitln tipitiatu : j>*t. pra-ster-num, divided into 4 pit-ci.; xt, pro-, «/, meso-,at, metasternum ; ex, coxa; not, notum. processes, or apodemes, which pass inward and also form attach-ments for the muscles. Those passing up from the sternumform the entothorax of Audouin,and the process of each thoracicsegment is called respectivelythe aiit<jfnr<-a, medtfnrwt, andpostfnrca. In the Orthoptera(Caloptenus and Anabrns), theantefurca is large, thin, flattened,directed forward, and boundseach side of the prothoraricganglion. In the Coleoptera two plates (Fig. 97, ) arise from theinside of the sternum and form a collar or leave a circular holebetween them for the passage of the nervous cord (Newport).. Fro. 97. —A, under surface of pro thorax, orprostcriMim, oiDyticuscircwmjlevis: _.;/, pn>-Kterrnmi; , (•pi>l»riiiiin; Ui, cpinurum; 2.«,antciiirca or entothorax. THE APODEMES 93 The medifurca is a pair of flat processes which diverge andbridge the commissure, while the postfurca is situated under thecommissure. In beetles (Dyticus) Newport states that it is ex-
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
