Abstract
Muscle and connective tissue strands linking the prothoracic cuticle to the posterior foregut and anterior midgut are described for 17 species of orthopteroid insects: Dinocras cephalotes (Plecoptera); Forficula aurkularia (Dermaptera); Acheta domesticus, Gryllus bimaculatus, Brachytrupes sp. and Phaeophyllacris spectrum (Gryllidae); Schizodactylus monstrosus (Schizodactylidae); Hemideina crassidens (Stenopelmatidae); Ephippiger ephippiger, Tettigonia viridissima, Conocephalus dorsalis and Pholidoptera griseoaptera (Tetligoniidae); Schislocerca gregaria, Omocestus viridulus and Chorthippus brunneus (Acrididae), and Carausms morosus (Phasmida). Of the 18 species examined, only the Gryllotalpa sp. (Gryllotalpidae) lacked extrinsic strands to the post-cephalic gut. The arrangement of the strands in the various species is compared, and the possible evolution and function of the strands are briefly discussed.
Published Version
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