Key to species of Colocharis

1 Female (flagellum 6-segmented; PL 1.3‒1.8× as long as metacoxa; posterior margin of Gt1 with 1 line of weakness)....... 2

- Male (flagellum 8-segmented, with FL2 with long thin funicular ramus; PL 2‒2.5x as long as metacoxa; posterior margin of Gt1 with 2 closely spaced lines of weakness).................................................................. 4

2 Propodeal disc evenly sculptured, areolate. Petiole approximately 7.1× as long as broad, without basal carina. Flagellum with FL2 elongate (4.7× as long as greatest width).................................................. C. elongata Heraty

- Propodeal disc weakly sculptured, relatively smooth/colliculate or areolate. Petiole less than 4.9× as long as broad, with basal carina. Flagellum with FL2 short (less than 3.7× as long as greatest width)........................................ 3

3 Flagellum with FL2 3.3‒3.7× as long as greatest width. Frenal process approximately 3.7× as long as broad. Propodeal disc relatively smooth/colliculate................................................................. C. napoana Heraty

- Flagellum with FL2 2.7‒3.3× as long as greatest width. Frenal process 2.1‒3.3× as long as broad. Propodeal disc weakly areolate.................................................................................... C. hungi Torréns

4 Flagellum with ramus of FL2 1.6‒1.8× height of head. Fore wing 2.1‒2.3× as long as broad, slightly infuscate................................................................................................... C. elongata Heraty

- Flagellum with ramus of FL2 less than 1.6× height of head. Fore wing 1.9‒2.4× as long as broad, hyaline............... 5

5 Flagellum with ramus of FL2 1.5‒1.6× height of head. Fore wing 1.9‒2.1× as long as broad............. C. napoana Heraty

- Flagellum with ramus of FL2 1.3× height of head. Fore wing 2.4× as long as broad..................... C. hungi Torrens