although not the same individual, this is an adult female Latrodectus variolus. after looking at several websites i make the following observations: juvenile male and female L. v. are similar in appearance, that appearance much resembling the adult male. both adult male and female may have stripes on ventral and dorsal abdomen. however, only the adult female has an hourglass marking on ventral; her body and legs are always glossy black. the male's body is not glossy and the legs are black plus another color. the female adult variolus will usually have an hourglass segmented as seen here; adult female mactan's hourglass is one solid marking. in some cases, an adult female variolus may exhibit a solid hourglass. the markings on the center line of the dorsal and ventral abdomen may range in color from yellow to orange to red.