Cosmophasis ombria

Males have a cephalothorax covered in pearly scale-hairs that are more numerous on the sides and anterior to the eye-field, which has a metallic shine. The eye-field is dark brown with black eye surroundings, and there is a fringe above the anterior eyes. The abdomen is mottled brown, darkening posteriorly, with a light creamy belt around the anterior half and a cream central longitudinal stripe with paired spots on the sides. Females have a brown cephalothorax with a greyish-light brown eye-field containing numerous creamy scales and scattered brown bristles. The thoracic area and sides are lighter and mottled orange with white scales. The abdomen is covered with brownish scale-hairs and displays a pattern of three yellow transverse stripes joining a central longitudinal stripe, with a wide yellow stripe bordering the anterior abdomen. The male palpal organ is characterized by a relatively small tegulum and a long, wavy embolus positioned at 9 o'clock. Females have epigynal fossae without distinctive borders, divided by a wide median guide, with a strongly sclerotised posterior epigynal edge and elongate, L-shaped spermathecae.

== References ==

C. ombria is distributed across Indonesia, including Sumatra, Java, Sulawesi, and the Krakatau Islands, with records also from Hainan in southern China. The species has been collected from various locations in the Krakatau Islands, including Anak Krakatau, Pulau Krakatau Kecil (Panjang), and Pulau Sertung.