| OCR Text |
Show 111 Thoracic no tum dark brown or tan; abdominal terga 2-6 light brownish- hyaline 7(6) or light olive brown •••••••••••••.••••.• 7 Thoracic notum tan with dark brown streaks abdominal terga 2-6 light brownish-hyaline; female with minute hind wings containing single longitudinal vein (Fig. 33) .•••.•..•..•••.••.•........ . alexanderi on pleura; Thoracic notum dark brown with pale brown streaks on pleura; abdominal terga 2-6 light olive brown; female with hind wings similar to those of male except slightly smaller . insignificans to white ••••••••••••••••• Mature 1 Two well present, mentary', segment Nymphs developed caudal filaments median terminal filament rudi no 10 longer than abdominal •••••••••••••••••••••••••••.•••••••••• caudal filaments present, median terminal filament at least one-sixth length of lateral cerci 2 Three •••••••.••••••••••••••••• 2(1) Margins of abdominal gills sclerotized; length of antennae three times height of head ••••••••••••••••••••••••••••• Margins of abdominal gills length of antennae one and of 3(1) head ••••••••••••••••••••••••••••• Median terminal filament of lateral cerci Median terminal filament length of lateral cerci Caudal bicaudatus . not sclerotized; one-half height . alexanderi one-sixth length ••••••••••••••••••• 4(3) 3 at one-half . propinquus either above, Caudal filaments unicolorous brown or with apex slightly da.rker •••••••••••••••••••••••••••••••••••••••••• as 4 whitish •••••••••••••••••••••• not intermedius ••••••••••••.•••••••••••• filaments with broad, subapical band least . 5 |