BIRDS OF AEGENTINA, PARAGUAY, URUGUAY, AND CHILE 239 

 XEPIDOCOLAPTES A. CERTHIOLUS (Todd). 



Picolaptcs bivittatus certhiohis Todd, Proc. Biol. Soc. Washington, vol. 

 26, August S, 1913, p. 173. (Curiche Rio Grande, eastern Bolivia.) 



Less heavily streaked below than angustirostris, in some with 

 streaks nearly obsolete, more riifescent. 



Eastern Bolivia and the Chaco of Paraguay for an indeterminate 

 distance southward. 



LEPIDOCOLAPTES A. BIVITTATUS (Lichtenstein) . 



Dendrocolaptes hivittatus Lichtenstein, Abh. Berlin Akad., 1820-21 

 (1822), p. 158, pi. 2, fig. 2. (Sao Paulo, Brazil.) 



Lower surface uniform or nearly so, lighter, more rufescent above. 



Southern Brazil (Sao Paulo to Matto Grosso?). 



Four skins in the Carnegie Museum from the Province of Lara, 

 Bolivia, have the streaks on the undersurface nearly obsolete and 

 are somewhat brighter above than the average oi L. a. certhioTus as 

 here taken. These may represent intermediates toward hivittatus 

 or may be that form, but with available material I am at a loss 

 where to place them. It is possible that hivittatus ranges across 

 Matto Grosso into the lower regions of north central Bolivia, while 

 certhiolus may be restricted to the Chaco region of eastern Bolivia, 

 and Paraguay west of the Rio Paraguay. 



LEPIDOCOLAPTES A. CORONTUS (Lesson). 



Picolaptes coronatus Lesson, Traitfi Orn., 1831, p. 314. ("Br§sil.") 



Similar to L. a. hivittatus, but undersurface, save throat slightly 

 duller than a shade between cinnamon buff and clay color. 



Eastern Brazil (Bahia, Piauhy, Ceara.) 



Six skins of this form that I have examined in the Field Museum 

 come from Jua and Quixada in Ceara. Doctor Hellmayr informs 

 me that coronatus of Lesson, based on Plate 90 in the first volume 

 of Spix's Avium Brasiliam (vol. 1), is the same as the form that 

 he separated under the subspecific name of hahiae}^ 



L. a. certhiolus, like other forms of this species, inhabited forested 

 regions, often where the growth was dense and almost impenetrable, 

 but was not averse to working out through the more open palm 

 groves, or palmares, that covered swamp regions, or open groves 

 of hardwoods where brush fires had prevented undergrowth. Like 

 others of its family, it climbed steadily in long hitches, woodpecker 

 fashion, always traveling up the tree trunks or limbs on which it 

 rested. One observed posed before its mate braced firmly with its 



>• Picolaptes Uvittatvs bahiae Hellmayr, Verb. Zool.-bot. Ges. Wien, 1903, p. 219. 

 (Bahia.) 



