Birds of the Gold Coast Colony ^c. 365 
A single female specimen of this new species was obtained 
at Prahsu in October 1901. We frequently observed tbis 
little Indicator whenever a swarm of tiying ants appeared. 
It would dart upon them and then retire to its original perch 
to devour its prey. 
225. POGONORHYNCHUS DUBIUS (Gm.). 
Pogonorhynchus dubius Shelley_, Cat. B. xix. p. 15 ; 
Hartert^ Nov. Zool. vi. p. 411 (Gambaga). 
Busunu and Gambaga. 
This bird is seen singly or in pairs^ frequenting open 
country. Towards evening it repairs to holes in trees to 
roost. 
The sexes a,re alike in plumage. 
• 226. Melanobucco bidentatus (Shaw). 
Melanobucco bidentatus Shelley^ Cat. B. xix. p. 18. 
Pogonorhynchus bidentatus Reichen. J. f. O. 1897_, p. 17 
(Togoland). 
, Lower White Volta Eiver. 
227. Melanobucco vieilloti (Leach). 
Melanobucco vieilloti Shelley^ Cat. B. xix. p. 26 ; Hartert_, 
Nov. Zool. vi. p. 412 (Gambaga). 
Pogonorhynchus vieilloti Reichen. J. f. O. 1897, p. 17 
(Togoland). 
Kintampo and Gambaga. Breeds in March. Common. 
Iris red. 
228. TmcHOLiEMA hirsuta (Swains.). 
Trichulcema hirsutum Shelley, Cat. B. xix. p. 28; Reichen. 
J. f. O. 1897, p. 17 (Togoland). 
Prahsu, Fumsu, and Kwissa. 
Common in the forest. 
229. Gymnobucco calvus (Lafr.). 
Gymnobucco calvus Shelley, Cat. B. xix. p. 34. 
Gymnobucco peli Hartl. Orn. W.-Afr. p. 175 (1857); id. 
J. f. O. 1861, p. 263. 
Pralisu and Fumsu. 
The sexes of all our specimens were determined. The 
