Sentence:  Head <WSD>atrous</WSD>, viridescent on lateral frontal spaces and occiput, gulae, basal part of mentum on each side of median tooth brightly viridescent; prothorax <WSD>atrous</WSD>, with viridescent tints on disc and wide brassy-green basal and lateral margins. 
Meaning of the word marked with <WSD> tags:  jet-black in color.