|
||
Go to Encyclopedia of Life...
Male. Medium size (TL = 39-43 mm). Integument setose, with long setae on pronotum, thorax, cerci, and subgenital plate. Median carina slightly raised, with distinct sulci.Metazona with numerous small granules. Hind angle of pronotum slightly angular. Width of metazona slightly wider than width of prozona. Fore and middle femur not inflated. A pair of tubercles on epiproct absent (Fig. 20). Cerci quadrate, length 1.5 times longer than width, and bilobed (Fig. 22). Lower apical angle of cerci protruding more than upper. Apical lobes of subgenital plate slightly flared outward, notch round V-shaped (Fig. 21). Phallus: Cingulum, surfaces of rami deeply infolded in the middle and highly convex, thus making “basal eminence” appear slightly bilobate and somewhat constricted in the middle (Figs. 44 and 45). Endophallus, basal valves ventral angle protruding more than dorsal, valves of cingulum club-shaped and curved downward, protruding more than apical valves of aedeagus (Fig. 46). Epiphallus, distance between lophi longer than the length of base of a lophus (Fig. 47). Lophi lamelliform. Color: Olive brown. Head yellowish to olive brown with dark-brown to black subocular stripes. A pair of olive brown stripes between eyes from upper half of frontal ridge to occiput. Head and pronotum with a bright yellow dorsal longitudinal stripe, sometimes extending to tegmina. Epimeron often distinctly yellow. Antennae yellow. Laterallobe of pronotum sometimes with a yellow rectangular spot. Tegmina uniformly olive brown, with veins light-brown to yellow. Hind wing with yellow tinge. Posterior margin of abdominal tergites with a row of black dots. Dorsal and ventral surface of hind femur yellow, with two distinct black dorsal bands. Posterior tip of hind femur black. Outer face of hind femur, upper half of medial area sometimes black and lower half white (Fig. 23). Carinula and carina without spots. Hind tibia mostly red or orange-red, but occasionally black or blue, with tibial spines yellow with black tip.
Female. Much larger than (TL = 49-61 mm). Median carina of pronotum more raised. Otherwise same as male. Ovipositor: Ventral valves short in proÞle. Base of dorsal valves not angular. Egg guide not narrowing toward apex, slightly curved upward. Pigmentation covering Jannone's organ distinct, sclerotized circularly in the middle. Diagnostic Characters. Males of S. albolineata posses elongated cerci with the lower apical angle protruding more than upper (Fig. 22), which is unique among the species in the Alutacea Group. The following characters can also be found in S. obscura, but the two species are never sympatric. They also have an elongated subgenital plate that is slightly ßared outward (Fig. 21). The epiproct lacks a pair of tubercles (Fig. 20). The epiphallus is wide in the bridge between lophi (Fig. 47), and the apical valve of cingulum is clubbed (Fig. 46). Most known specimens have a bright yellow dorsal longitudinal stripe, two black dorsal bands on hind femur, and red hind tibia. |
||