193 



most confused on the uj^per portion of the rump. In both adult and 

 immature stages there is considerable variation, but all within ,the 

 limits of the above diagnosis. 



List of specimens. 



Nat. Mu8. 

 No. 



Coll. 

 No. 



Sex and 

 age. 



Date. 

 (1875.) 



Wing. 



Tail. 



Culmen. 



Tarsus. 



Middle 

 toe. 



Kemark.s. 



69980 



22 



30 

 31 

 32 



18 

 25 

 17 

 23 

 27 

 21 

 20 

 33 

 26 

 24 

 29 

 19 

 48 

 48 

 48 

 34 



— ;inv. 

 $juv. 



— ad. 



— ad. 

 9 ad. 

 — inv. 



—JUV. 



— ad. 

 —jav. 

 cf.inv. 

 cfjuv. 

 cTjuv. 



— ad. 

 ? ad. 

 —juv. 



— ad. 



— pull. 



— pull. 



— pull. 



— pull. 





15.75 

 15.50 

 16.00 

 15.50 

 16.40 

 16.10 

 15.80 

 1.5. 75 

 15.50 

 15.00 

 1.5. 50 

 15.50 

 1.5. 80 

 1.5. 50 

 15. 50 

 15.75 



11.25 

 11.25 

 10.80 

 10. 65 

 11.65 

 11.25 

 10.75 

 11.00 

 10.50 

 10.50 

 11.00 

 10.60 

 11.00 

 10.60 

 11.00 

 11.00 



1.30 

 1.30 

 1.35 



i.'so' 



1.25 

 1.25 

 1.30 

 1.30 

 1.25 

 1.30 

 1.30 

 1.30 

 1.25 

 1.30 

 1.25 



3.70 

 3.50 

 3.70 

 3.60 

 3. 65 

 3.65 

 3.60 

 3.50 

 3.65 

 3.55 

 3.65 

 3.60 

 3.50 

 3.60 

 3.75 

 3.60 



1.95 

 1.90 

 2.00 

 1.90 

 2.10 

 2.00 

 2.05 

 1.90 

 1.90 

 1.80 

 2.05 

 1.95 

 1.95 

 2.00 

 1.90 

 1.90 



No. 6 6989, "Eye 



69981 





brown ; legs aiid 

 cere dead -white, 



69982 





69983 

 69984 

 69985 



May'io 



with abluish tinge." 

 No. 66990, "Legs 

 light yellow ; cere, 



69986 







etc., salmon-color." 



69987 

 69983 



May 10 





69989 







(59990 







69991 







69992 







69993 







69994 







69995 







69996 



May 10 

 MaV 10 

 May 10 

 Apr. 11 





69997 















69998 















69999 





























This species resembles the P. tharus much more than it does the P. 

 eherkoay, but it is nevertheless so very distinct as not to need actual 

 comparison. The tail is entirely different in its markings, the darker 

 bars being much wider than the light ones (twice as wide) on the middle 

 feathers, while each is bordered with a narrower zigzag bar of dusky ^ 

 the lighter markings are moreover light isabella-color, instead of white, 

 as in P. tharus, in which w^hite forms the ground-color, over which 

 cross very narrow bars of grayish-brown. The rump and upper tail- 

 coverts are very indistinctly barred, brown being the prevailing color, 

 while in P. tharus this region is white, narrowly barred with grayi-sh- 

 browu. The ground-color of the lower parts is light isabella-color, with 

 imperfect, more or less sagittate, bars of brown, whereas in P. tharus 

 these portions are black, crossed with narrow, regularly transverse, bars of 

 brownish-wliite. The throat is light isabella-color, while in P. tharus it 

 is white. Other differences might be mentioned, but they are too 

 numerous. Briefly, the more conspicuous differences between the three 

 species may be contrasted as follows : — 



P. LUTOSTJS. — Scapidars plain diisl'i/ brown. Tlbue and flanlcs light isa- 

 bella-color, barred with dark brown. Wing-coverts (middle and 

 greater) marked with wide bars of brown and pale isabella-color, of 

 equal width. Tail-coverts and rump with broad bars of light isabella- 

 color and grayish-brown. Tail with broad bars of pale isabella-color 

 and grayish-broicn, separated by zigzag lines of dnslcy. Abdomen isa- 

 bella-color, with small sagittate bars of dark brown. 



P. THARUS. — Scapulars barred grayish-white and black. Tibiw and 

 fianlxs nearly uniform blacldsh-brown. Wing-coverts brown, narrowly 

 barred with whitish. Tail-coverts and rump white, with narrow bars of 

 grayish-brown. Tail white, with narrow bars of brownish-gray. Abdo- 

 men blacJiish-brown, with transverse bars of whitish. 



P. ciiEKiWAY. — Scapulars plain brownish-black. Tibioe and flanks 

 plain black. AVing-coverts plain blackish. Tail-coverts and rump 

 plain white, without bars. Tail as in P. tharus. Abdomen plain 

 blacl:* 



'The characters iu itaiics are those coiunioa to the adult uud youiis i)liiuia.ue. 



