The insects the family Tingidae generally live and feed on the underside of leaves. They have thin lacy outgrowths on their thorax, and have delicate lace-like forewings (Drake and Ruhoff 1965). (http://entnemdept.ufl.edu/creatures/orn/...)
Host Plant : C. cajan/ Fabaceae.
Damage / chlorotic : Nymphs and adults cause damage by piercing and removing cell contents from leaf tissues. Lace bugs insert their stylet through stomata on the lower leaf surface and feed almost entirely on upper palisade parenchyma (Ishihara and Kawai 1981, Buntin et al. 1996). Because of the removal of most of the chlorophyll containing tissues located near the upper epidermis, the leaf surface become stippled, bleached, silvery or chlorotic. (http://entnemdept.ufl.edu/creatures/orn/...)
Small dark spots: Excrement.