Original description as Paratilapia caerulea:
- Boulenger, George Albert. 1908. "Diagnoses of new fishes discovered by Capt. E. L. Rhoades in Lake Nyassa". Annals and Magazine of Natural History. (Ser. 8) pp. 238-243 (crc00068)
- Haplochromis bellicosus Ahl, 1927, with type locality at Lake Malawi. Determiner: Trewavas, 1935
- Haplochromis boultoni Nichols & La Monte, 1931, with type locality at Karonga, Lake Malawi. Determiner: Trewavas, 1935
Conservation: Champsochromis caeruleus is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2006). Champsochromis caeruleus lives in shallow water over open sandy bottoms, i.e. vulnerable to beach seining, it is rarely found in hauls of beach nets.