. Bulletin of the British Ornithologists' Club. 297 [ 1981:101(2)] arriba, ^(AMNH). Peru: Playon, 1 sex? (LSUMZ); Sapalache-Carmen trail, 5 ?? (LSUMZ). C. 0. hiaticolus (26). Peru: 20 trail km E La Peca, 5 §$ (LSUMZ); 10 km NE Abra Patricia, 3 <J<J, 2 ??, 1 sex ? (LSUMZ); Cumpang, 3 <?£, 5 ??, 1 sex? (LSUMZ); Paty Trail, 2 $$ (LSUMZ); E slope Cordillera Carpish [ = Paty Trail], 2 <}<?, 2 ?? (LSUMZ). C. 0. cinereocephalus (n). Peru: Cerros del Sira, 4 <$$, 4 £ (AMNH); Chelpes, 1 <J, 1 $(AMNH); EsteraRuana, 1 6* (LSUMZ). C. (16). Peru: Hda. Cadena, 1 $
. Bulletin of the British Ornithologists' Club. 297 [ 1981:101(2)] arriba, ^(AMNH). Peru: Playon, 1 sex? (LSUMZ); Sapalache-Carmen trail, 5 ?? (LSUMZ). C. 0. hiaticolus (26). Peru: 20 trail km E La Peca, 5 §$ (LSUMZ); 10 km NE Abra Patricia, 3 <J<J, 2 ??, 1 sex ? (LSUMZ); Cumpang, 3 <?£, 5 ??, 1 sex? (LSUMZ); Paty Trail, 2 $$ (LSUMZ); E slope Cordillera Carpish [ = Paty Trail], 2 <}<?, 2 ?? (LSUMZ). C. 0. cinereocephalus (n). Peru: Cerros del Sira, 4 <$$, 4 £ (AMNH); Chelpes, 1 <J, 1 $(AMNH); EsteraRuana, 1 6* (LSUMZ). C. (16). Peru: Hda. Cadena, 1 $, 1 $(FMNH); La Oroya, 2 $$ (ANSP); Oconeque, 1 6*, 1 $ (ANSP); Bosque Aputinye, 1 6\ 1 $ (LSUMZ); Santo Domingo (Inca Mine), 1 $ (ANSP); 5 km NE San Jose on Rio Huari Huari, 1 $ (LSUMZ). Kemarks: The fact that the new form was not discovered until 1968 is most surprising. We can only surmise that earlier workers did not spend time at the elevations where Chlorospingus ophthalmicus occurs. We have named the new form hiaticolus, meaning "gap inhabitor," to highlight the fact that the apparent hiatus in the range of the species is not real. C. 0. hiaticolus is common throughout its known range, and is frequently noted in mixed-species flocks of other tanagers and honeycreepers that move from fruiting tree to tree in primary forest and in advanced second growth at the forest edge. These bush-tanagers also search for insects on leaves, and in epiphytic growth on branches in the forest canopy and subcanopy. Males establish territories at the forest edge and in forest openings ( treefalls), where they sing from inconspicuous perches 10-20 m above ground. The primary song (see Fig. 1) consists of an accelerating series of chip notes followed by a harsh trill, and has been recorded from June to October, but the species may sing throughout the year. This bush-tanager is most vocal after dawn and late in the afternoon. KHz. 11 — 1 r time in seconds \ \- \ ' I iiit uuuu
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