NEW SOUTH A MERICAN BIRDS-OBERIIOLSER. 63 



MECOCERCULUS 3TICTOPTERUS EUPLASTUS, new subspecies. 



Chars. .sv/%>.— Similar to Mecocerculm stlctoptenix dictopUrm^ but 

 plumbeous of pileum les.s tinged with brownish; upper surface of body 

 olive green instead of olive brown; sides of head somewhat palci-. 



DeHci'q)thni.—T\^^, adult male, No. 159818, U.S.N.M.; Maraynioc, 

 Peru, September 1, 1892; J. Kalinowski. Crown plumbeous; remain- 

 der of upper parts olive green: tail fuscous, margined with the color 

 of the back; wings sepia brown, the lesser coverts and innermost sec- 

 ondaries edged with dull olive green, the greater and median wing- 

 coverts and innermost secondaries broadly tipped with buffyAvhite, the 

 remaining wing-(juills with external margins of pale olive brown; sides 

 of head dull slate gray, the cheeks mixed with whitish; superciliary 

 stripe white: sides of neck anteriorly grayish above, whitish below, 

 posteriorly dull olive green; lower parts white, the throat and bi-east 

 shaded with grayish, the sides, flanks, and crissum washed with 

 yellowish; Ihiing of wing pale sulphur yellow. Length of wing, 

 f)5 mm.; tail, .59 mm.: exposed culmcn. S mm.; tarsus, is nnnt; 

 middle toe, 10 mm. 



While possibly a distinct species, this new form so reseml)les true 

 Mecocerculm stictoj,ter»i.s irom Ecuador as to appear the subspecitic 

 representative of that species in Peru. It is, however, determinable 

 at sight by the very diflerent color of the back. The size of both 

 forms appears to ))e nearly or quite the same. 



RHYNCHOCYCLUS SCOTIUS, new species. 



Chars. N/^.— Similar to R/u/nchoryclas snlphart'svn,.s, but bill broader; 

 upper parts rather duller olive green; edgings of wings and tail less 

 yellowish, this most apparent on the wing-coverts; entire lower sur- 

 face darker, more dingy, even the median portion of abdomen con- 

 siderably shaded with olivaceous: lining of wing of a deeper, more 

 olive yellow. 



/><.vfvv>^^;//.— Type (sex unknown). No. 59181, U.S.N.M.; Brazil 

 (exact locality unknown). Al):)vc olive green, the head and nape 

 noticeably shaded with slate color; wings and tail fuscous, margined 

 exteriorly with olive green, this on the remiges and greater wing- 

 coyerts more yellowish; lores dusky; supraloral stripe dull white; 

 chin and cheeks dull grayish, mixed with olive green and slaty; 

 auriculars anteriorly olive green, posteriorly blackish; sides of neck 

 olive green; rest of under surface dull grayish olive yellow, brighter 

 on the central abdomen, the crissum tinged with ochraceous; lining of 

 wing olivaceous yellow, the axillars clear sulphur yellow. Length of 

 wing, 66.5 mm.; tail, »'>(» mm.; exposed culmen, 11 mm.; trirsus. 

 18 mm,; middle toe, lo mm. 



The single specimen on which is based the al)ove description is 

 unfortunately without furth.M- locality than - Brazil. ^- but it iscertainlv 



