. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. s Fig. 7.—Chlorolestes conspicua Selys. Imago: a, $ ovipositing in stem of reed. b, reed stem cut open to show 3 ova. c, genital valve $, with margin further enlarged. Nymph: d, Xth abdominal segment -with Xlth tergite and median gill, showing suture (s). e, anterior margin of median lobe of mask. /, 3 major folds of gizzard, g, genital valve $. fig. 39, H, J.). In Agrionid nymphs the gills break off very easily at the junction between gill and basal supporting ring, whereas in Chlorolestes the gills


. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. s Fig. 7.—Chlorolestes conspicua Selys. Imago: a, $ ovipositing in stem of reed. b, reed stem cut open to show 3 ova. c, genital valve $, with margin further enlarged. Nymph: d, Xth abdominal segment -with Xlth tergite and median gill, showing suture (s). e, anterior margin of median lobe of mask. /, 3 major folds of gizzard, g, genital valve $. fig. 39, H, J.). In Agrionid nymphs the gills break off very easily at the junction between gill and basal supporting ring, whereas in Chlorolestes the gills are not caducous. Key to the species of Chlorolestes. Claspers (superior appendages) £ without either basal teeth, or lobes on inner margin. Penis with a distal hook. Accessory sac of $ bursa with bifurcate saccule (fig. 2d). Chlorolestes (sensu stricto). A. Inferior appendages $ not bifid. Distal hook of penis apically acute. Pterostigma unicolorous. 1. Larger. Hind-wing 32-37 mm. Wings never banded. Yellow stripe on mesepisternum entirely dorsal to humeral suture. Veins R3-IR3 and R4+5-MA evenly diverging conspicua Selys. 2. Smaller. Hind-wing 22-25 mm. Wings when fully mature banded. Yellow stripe on mesepisternum embracing the humeral suture. R3-IR3, and likewise R4+5-MA, subparallel (except near margin) ..... umbrata Selys. VOL. XXXII, PART 3. 14. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky