Description
A large Hyperolius (males 25–29 mm) from montane forests in central Africa, bright translucent green with a light golden triangle on the snout and a mottled dorsum. Some specimens have a light, brief, broad dorsolateral stripe, rarely extending further back than the shoulder region. Vocal sac of calling males green. Pupil horizontal.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Congo, the Democratic Republic of the

	View distribution map in BerkeleyMapper.
	View Bd and Bsal data (67 records).

H. frontalis is known from forests in eastern R. D. Congo and south-western Uganda.

Life History, Abundance, Activity, and Special Behaviors
The call is a twice or thrice repeated brief, hard buzzing with an indistinct frequency-intensity maximum at about 3000 cps.

A clutch consists of approximately 24 light green eggs in a clear jelly, placed above water.

Comments
A number of large to medium-sized forest-living Hyperolius have been described or listed by Laurent 1950 and 1972 from Virunga National Park and its vicinity, R. D. Congo. The distinction between them is not well documented and the reference to older type material seems uncertain, and this may reflect on the validity of the current names. Further studies are therefore necessary. They have been treated here under the following names: H. frontalis/, H. diaphanus, H. alticola, H. chrysogaster, H. leucotaenius and H. xenorhinus.

This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira publishers, Frankfurt am Main.

References

Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.