. Occasional papers of the California Academy of Sciences. t clasper function of the left cercus, or itsbasipodite. The left hemitergites process (10 LP) often con-sists of an inner talon and an outer flange which of-ten is thin, or fleshy. In many species, however, theouter flange is greatly reduced, or absent. The lefthemitergites process assumes many forms consis-tent within a species and thus is especially useful insystematic studies. It probably is the most importantstructure for providing rigid guidance of the apex ofthe endophallus into the vulva. Often the left hemitergite (10 L) is cl
. Occasional papers of the California Academy of Sciences. t clasper function of the left cercus, or itsbasipodite. The left hemitergites process (10 LP) often con-sists of an inner talon and an outer flange which of-ten is thin, or fleshy. In many species, however, theouter flange is greatly reduced, or absent. The lefthemitergites process assumes many forms consis-tent within a species and thus is especially useful insystematic studies. It probably is the most importantstructure for providing rigid guidance of the apex ofthe endophallus into the vulva. Often the left hemitergite (10 L) is clearly sepa-rated from other portions of the tenth tergite by asubmedial. membranous cleft which may extend tothe basal margin of the tergite. In many other spe-cies, however, the basal portions of the cleft is ab-sent due to fusion of the inner-basal margin of 10 L ROSS: EMBIA, BIOSYSTEMATICS OF THE ORDER EMBIIDINA. PART 1 43 llthtergite^/;^10 LP left hemitergtte lOL left cercus ? bosipodite LCB medial flap MFeprproct EP^^ -10 RP ^ right paraproct RPFT. right hemitergiteOR right cercus ? bosipodite RGBcercus socket , right hemitergite 10R -/-^H--RCB right paraproctRPPT left hemitergite ^ LCB
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectscience, bookyear1890
