. Occasional papers of the California Academy of Sciences. sternalapophysis B pronotal flangecatepisternite pronotum pleural apaphysis. lateral posterior ventral cervical sclerites cervical sclerite sternal opophysis , post sternum Figure 12. Structure of prothorax. adult male. A. Dorsal aspect, B. Ventral aspect, C. Lateral aspect. Oligotoma nigraHagen. sternums apophyseal pits are located on either sideof the posterior margin. These are transverse anddevelop internally as short, terminally-dilated, flatapodemes. The broad area between the inner ends ofthe apophyseal slits represents the poin
. Occasional papers of the California Academy of Sciences. sternalapophysis B pronotal flangecatepisternite pronotum pleural apaphysis. lateral posterior ventral cervical sclerites cervical sclerite sternal opophysis , post sternum Figure 12. Structure of prothorax. adult male. A. Dorsal aspect, B. Ventral aspect, C. Lateral aspect. Oligotoma nigraHagen. sternums apophyseal pits are located on either sideof the posterior margin. These are transverse anddevelop internally as short, terminally-dilated, flatapodemes. The broad area between the inner ends ofthe apophyseal slits represents the point of basal con-tact of the very large first poststemum which is fusedto the prostemum. A detailed treatment of the prothorax, includingits musculature, will be found in Bitsch and Raymond(1970). Pterothorax of males The pterothorax of alate males (Figs. 13-16) ex-hibits a number of very interesting features. Unlike ROSS: EMBIA. BIOSYSTEMATICS OF THE ORDER EMBIIDINA, PART 1 17
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