[Title Page] [List of Genera] Comparison of Drawings] [Regional Keys to Genera] [Descriptions of New Taxa] [Geographical Distribution] [Color Photographs] [Scanning Microphotographs] See also Catalogue of Salticidae [ Title page] List of Genera - names beginning with: A BC DEFG HIJKL MN OPQ RS TUVWXYZ References: Authors beginning with: A BC DEFG HIJKL MN OPQ RS TUVWXYZ [See also Catalogue: Yaginumaella]

Salticidae: Diagnostic Drawings Library

by Jerzy Proszynski 1997

Genus Yaginumaella Proszynski [1976] 1979

Attention: relationship between genera Yaginumaella and Ptocasius require further consideration
Diagnoses of genera of South East Asia: Light or colourful, sometimes iridescent salticids. Shrubs, plants, especially broad leaved. General remarks: In the field, plants with large green leaves, such as ginger, are often favoured by salticids, particularly colourful species. Some are clothed with dense, coloured, iridescent hairs which makes them particularly attractive and conspicuous. They are often to be seen wandering about or sunning themselves on top of the leaves and sometimes to be found resting or in a cell under a leaf. Salticids often build a retreat between and attached to two closely overlapping leaves. With care and a suitably placed sweep net, one can often collect the owner. Genus: Yaginumaella is said to be very close to, and may well be synonymous with, Ptocasius. One species, Y. originalis, and five species of Ptocasius occur in our area. The cephalothorax is high with the top rounded and sloping from the rear eyes more steeply on the thorax. The carapace is longer than wide with the sides curved, briefly flared near the front eyes and has a somewhat truncated posterior margin. The abdomen is oval, truncated anteriorly and slightly pointed near the spinnerets. The legs are not particularly long or slender and carry some spines. For the female Y. originalis, the carapace is light brown with a tapering, median, light orange to yellow, stripe running from the front eyes to the posterior margin. On the thorax, next to this stripe, are two parallel greyish-orange areas. The sides are orange becoming yellow posteriorly. The abdomen is pale yellow with a pattern of brownish-grey spots forming oblique lines on the sides. It is covered with greyish-brown hairs and bristles which become denser near the front. The front legs are dark yellow with greyish-brown hairs. The other legs are paler. Distribution: Yaginumaella is known from Bhutan, Nepal, Myanmar, China, Korea and Japan. Murphy & Murphy 2000: 355. By courtesy of the Authors' and the Malaysian Nature Society.

Copyright © for the page by J. Proszynski, 2000.