BIRDS COLLECTED IN PARAGUAY -OBERHOLSER. 131 



the lower breast and in the center of the abdomen, sharply contrasted 

 to the ochraceous of sides and flanks; also the bill of ochi'itx is of 

 smaller size. 



There are apparently no synonyms that apply to this new species, 

 for Thamnopliil ux piJ ('(Aiu!< Swainson' is clearly not the same, if indeed 

 at all with certainty identifiable; and Thainnojjhihis ventralis Sclater^ 

 is undoubtedl}^ the Tham7wphilus cyarulescens of Vieillot. Further- 

 more the I'hamnojjhiJus cmratnn of Vieillot^ does not correspond with 

 the bird sent l)y Mr. Foster, and quite surely is the female of 

 T. cxrulcsccns. 



THAMNOPHILUS RADIATUS Vieillot. 



TlKimnophlln.s radiatnx Vieillot, Nouv. Diet, d' Hist. Nat., Ill, 1816, p. 315. 



The sini^le adult female is apparently typical of this species. ''Iris 

 buff.'' 



HYPOEDALEUS GUTTATUS (Vieillot). 



ThamnojMlus guttalus YiEiLhOT, Nouv. Diet. d'Hist. Nat, III, 1816, p. 315. 

 Hypoedaleus guttatus Cabanis and Heine, Mus. Hein., II, 1859, p. 18. 



One .'tdult male, seemingly indistinguishable from a specimen taken 

 in Rio Grande do Sul, Brazil. ''Iris brown." 



This species differs so greatly in the shape of the bill and length of 

 tail from the typical forms of Thavinophihis that there seems to be 

 excellent reason for the generic separation proposed hy Cabanis and 

 Heine,* and here adopted. 



Family DEN DKOCOLAPTID.E. 



PICOLAPTES TENUIROSTRIS APOTHETUS Oberholser. 



I'lcolnptes tenuiroiytrU ajxilhehis ( )beuholsek, Proe. Biol. 8oc. Wayhington, XIV, 

 1901, p. 188. 



Cliars. suhs2>. — Similar to PJcoIaptes temiirostrU temilr<>strl><^ but 

 very much smaller, and with the pale shaft streaks of the l)ack d(>cidedly 

 more narrow. 



Description.— Tyx^a.'cxdwM male. No. 173385, U.S.N.M.; Sapucay, 

 Paraguay, June 16, 11»()(); William T. Foster. Upper parts olive 

 brown, the back more reddish, the rump and upper tail-coverts chest- 

 nut; head thickly spotted with ochraceous, which markings become 

 l)road shaft-streaks on the cervix and dwindle to narrow shaft lines 

 on the inter.scapiilum; tail chestnut; wings fuscous, when closed the 

 exposed surface reddish olive brown, excepting the innermost sec- 

 ondaries which are entirely dark chestnut, and the inner margins 



1 Zoological Journal, II, 1825, p. 91. 



^Edinb. New. Philos. Journ., New Ser., I, 1855, p. 244. 



^Nouv. Diet, d' Hist. Nat., Ill, 1816, p. 312. 



*Mus. Hein., II, 1859, p. 18. 



