The species was first described by O. Pickard-Cambridge in 1882 from a male specimen collected in Sri Lanka (then Ceylon).[2] The species was initially placed in the genus Theridion by some authors, but was transferred to Coleosoma by Levi in 1959.[3]
Two species described by Thorell in 1895 from Myanmar, Theridion acrobeles and T. conutum, are now considered junior synonyms of C. blandum.[2]
C. blandum is commonly found in agricultural areas and is considered a beneficial predator in rice fields throughout Southeast Asia.[5]
Description
C. blandum is a small spider with females measuring 2.0-2.8 mm and males 1.9-2.6 mm in body length. The carapace and abdomen are black, while the legs are yellowish-white with black rings on the tips of the tarsal segments and base of the metatarsal segments of the fourth legs.[2]
The male is distinguished by its greatly enlarged and swollen abdomen with a distinctive sac-like posterior portion. The female can be identified by multiple thread-like protrusions that emerge from the abdomen. Both sexes have a large yellowish-white spot in the center of the dorsal surface of the abdomen.[2]
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
