14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 



Specific characters. — Above dark olive greenish, darkest on top 

 of head and on upper tail coverts ; wings and tail blackish slate color 

 narrowly margined with dull olive green ; lores and narrow ring 

 around eyes dingy yellowish ; sides of head olive green like back, 

 under side of neck and breast dingy fulvous — almost olive — buffy 

 shading into olive greenish on sides of breast and changing abruptly 

 into canary yellow on abdomen and under tail coverts, yellow palest 

 on tail coverts and darkest next breast ; bend of wing dark olive 

 green ; axillaries pale dull yellowish ; bill dusky above yellow below ; 

 feet and tarsi dusky horn color. 



Measurements of type. — Wing, 62 ; tail, 49 ; culmen, 10 ; tarsus, 

 12.3. 



Remarks. — The present species, represented in the collection by 

 five specimens, differs strongly from other known members of the 

 genus in the green back, light olive-fulvous breast and bright yellow 

 abdomen, thus reproducing a style of coloration found in Empidonax. 

 An immature specimen taken at the type locality, March 13, has con- 

 spicuous dark buffy edgings to the wing coverts, forming two wing 

 bars ; narrow grayish white edgings to outer borders of tertials and 

 small buffy gray tips to points of tail feathers. In the adult the 

 wings and tail are plain, or with scarcely a trace of edgings to the 

 feathers. This species appears to be most closely related to M. 

 olivaccus Berl. & Stolz. of Central Peru but is distinguished by the 

 clearer yellow of the abdomen and other characters. 



PRJEDO, 1 gen. nov. 



Generic characters. — Small flycatchers closely related to Aphano- 

 triccus Ridgway, but with a strong resemblance in coloration to 

 Empidonax; bill proportionately broader and much thinner or more 

 flattened than in Empidonax, broad and depressed at base with well- 

 marked ridge along top ; outline of sides slightly convex subbasallv ; 

 compressed and hooked at tip with a well-marked notch ; rictal 

 bristles fine and weak extending along top of upper mandible three- 

 fourths its length ; nostrils open, rounded and set well forward on 

 mandible (about one-third of distance from feathering of forehead 

 to tip) ; under mandible slightly keeled with broad rounded inter- 

 ramal area extending forward as far as anterior border of nostrils; 

 point of wings short, longest primaries only a little more than half 

 the length of culmen longer than secondaries ; tenth or outer pri- 

 mary equals third and also equals the longest secondaries ; ninth pri- 



1 Prsedo = a robber. 



