526 
Birds of Celebes: Sylviidae. 
217. LOCUSTELLA OOHOTENSIS (Mi del.). 
MiddendorfF’s Grasshopper-warbler. 
a. Sylvia (Locustella) ochotensis {!) Midd., Sib. Reise 1853, 11(2), 185, t. XVI, f. 7, 8. 
b. Calamodyta ochotensis (1) Grtay, ILL. 1869, I, 210, Xr. 2973; (2) Taez., P. Z. S. 1889, 
621; (3) id., Faune Orn. Sib. Orient. 1891, 241. 
Locustella ochotensis (1) Cab., J. f. O. 1871, 151; (2) Dresser, B. Eur. 11, 634 (1878); 
(3) Sbarpe, P. Z. S. 1879, 338; (4) Seek, Cat. B., V, 1881, 113; (5) Styan, Ibis 
1887, 220; (6) Sharpe, Ibis 1889, 265; (7) Everett, J. Str. Br. K. A. S. 1889, 
97; (8) Steere, List B. & M. Philipp. Is. 1890, 20; (9) Sharpe, Ibis 1890, 276; 
(10) Seel)., B. Japan. Emp. 1890, 73; (11) Styan, Ibis 1891, 318; (12) Pleske, 
Yog. Buss. Keichs II, 590 (1891); (13) De La Touche, Ibis 1892, 417; (14) Grant, 
Ibis 1896, 465. 
c. Locustella subcerthiola (1) Swinh., Ibis 1874, 154; (2) David & Oust., Ois. Chine 1877, 249. 
d. Arundinax blakistoni (I) Swinh., Ibis 1876, 332, pi. VIII, f.'l. 
For further synonymy and references cf. Taezanowski b 3. 
Figures and descriptions. Middendorff a I juv.); Swinhoe dl (= juv.), c7; David 
& Oust, c 2] Seel)ohm 4')\ Taezanowski b 3. 
Adult. Above bistre-brown, with darker centres to the feathers; rump and upper tail-coverts 
uniform and brighter; crown and nape greyer brown, with blackish centres to the 
feathers; wing-coverts and quills dark brown edged with the colour of the back, 
but paler; tail darker and purer brown than the back, with obsolete biirs showing 
in certain lights, tip whitish, preceded by two or three blackish bars seen more 
plainly from below; superciliary stripe from lores to above ear-coverts 
yellowish white ; in front of and below the eye broum like the head; chin, throat 
and middle of abdomen white, the feathers on the throat more or less tipped with 
wood-brown; breast and sides dark rufous wood-brown; crissum and under tail- 
coverts wood-brown; under wing-coverts yellowish white. Wing 66 ram; tail 52; 
tarsus 23; bill from nostril 9.5 (Minahassa: Faber — C 3518). 
Upper bill brownish horn, lower desh- whitish; feet pale yellowish with pale 
claws; iris deep brown (Taez. b 3). 
Sex and Young. Sexual differences of coloration are not known to exist. Other specimens, 
probably yorrnger, are suffused with yellowish (Taez. b 3). 
Eggs. 5—6, rose-colour, moderately glossy, with a few fine veins encirchng the large end, 
no other marldngs: size 21 X 14.3 mm (Kamtschatka — ex Taez. b 3). Taezanowski 
remarks that the eggs resemble those of Arutidinax aedoii (Pall.). 
Distribution. Kamtschatka (DyboAvs. b 5); Bering Id. (Stejneger b 3); Kurile Is. (Wossnes. 
4]-^ Japan (Blak. 7d); Cluna (David c 2, De La Touche 13); Phihppines — Marin- 
duque (Steere S), Mindoro (Whitehead 14); Xorth Borneo (Low 3, 7, White- 
head 6, 7); Celebes — Minahassa (Faber in Dresden Mus.). 
A single specimen, which Ave find to belong to this species, is in the 
Dresden Museum; it is new to the island. The species stands very near to 
L.certhiola (Pall.), in which the centres to the feathers on the back are black, 
producing a more spotted appearance; this bird has been recorded from some 
of the same localities, and it appears to us desirable that a fresh comparison 
A) From Seebolim’s description Ave are by no means convinced that the specimens in the British 
Museum belong to this species, but think they may be Locustella pleskei (Taez., P. Z. S. 1889, 621). 
