2. PHTLL0SC0PTJ3. 37 



brown ; the very pale biiffish white of the underparts is replaced 

 in the present species by very pale greyish white ; inner margins 

 of quills pale bulRsh brown. Eill with the upper mandible brown 

 and the under mandible horn-colour ; rictal bristles very small. 

 Wings with the third and fourth primaries nearly equal and 

 longest ; second primary about equal to the fifth ; bastard primary 

 0-65 to 0'8. Legs, feet, and claws pale brown. Length of wing 3'5 

 to 3-35 inches, tail 2-G5 to 2-6, culmen 0-75 to 0-7, tarsus 1-05 to 1-0. 



There are no differences in colour worthy of note attributable to 

 age, sex, or season. 



The Grej'-backed Warbler breeds in Itaty, Greece, Asia Minor, 

 Palestine, the Caucasus, Persia, and Turkestan. It winters in 

 Scinde and Rajpootana. 



a. Ad. sk. Allien M. Parzudaki. 



h. Ad. sk. South Russia. M. Verreaux. 



c. Ad. sk. Persia. 



d. cS ad. sk. Near Regan, S.E. Persia, W. T. Blanford, Esq. [C.l. 



April 19, 1872. 



e. 2 ad. sk. Bampur, Baluchistan, W. T. Blanford, Esq. [C.l. 



April 5, 1872. 



2. PHYLLOSCOPUS. 



Fieedula, Eoc/i, Syst. baier. Zool. i. p. 158 (1816, nee "^-^P®- 



Cvvier 1799, cert'e wecMotacilla fieedula, Linn.) . . P. sibilatrix ? 

 Trochilus, Forster, Synopt. Cat. p. 15 (1817, nee 



Linn. 1766) P. sibilatrix ? 



Asilus, Bechst. Orn. Tmclienb. p. 173 (1802, ex 



Mdhring, 1752, preocciipied in Entomologif) P. sibilatrix ? 



Phylloscopus, Boie, Isis, 1826, p. 972 P. trochilus. 



Sib'illatrix, JKavj), ^^atiirl. Si/st. p. 98 (1829) P. sibilatrix. 



Pbyllopneuste, 3Ieyer, fide Brelmi, Toy. DeutscM. 



p. 423 (1831) P. sibilatrix. 



Svlvicola, Eyton, Cat. Brit. B. p. 13 (1836, 7iec 



Stcainson} P. .sibilatrix. 



Eeguloides, BlytJi, J. A. S. Beng. xvi. p. 442 (1847). P. superciliosus. 



Acanthopneusto, Blasius, Kaum. 1858, p. 313 P. borealis. 



PhyUopseuste, ^leyer.jide Meves, Jouni. Oni. 1875, 



p. 429 P. sibilatrix. 



Bill of Fhylloscopus trochilus, Linn. 



The genus Phylloscopvs comprises a small group of birds fami- 

 liarly known as WilloM-Warblers. Some of the species approach 

 the genus Cryptolojjlia so closely as scarcelj' to be generically 



