23:* 



Genus I. HlBPSILOCB \i I B. 



Herpsilochmus, Cab. Orn. Not. i. p. 228. 



Habitus thamnophilinus scd sta/ura minor : rostrum crassiusculum 



basi hitiore quam in f/cnere Formicivora : tarsi breves ; acro- 



tarsiis el paratarsiis dicisis. 



This small section (as Dr. Cabanis has observed) Beema t" form 



the transition between ThamnophUus and Formicivora, It is a Bmaller 



and weaker form than any of the last subfamily, and more resembles 



Formicivora, except in its stronger and more broadly-based beak. 



1. Herpsilochmus i'ilkatus. 



Myiothera pUeata, Licht. Doubl. p. 4 4 ; Max. Beitr. iii. 1078. 



Formicivora pileata, Menetr. Mon. Myioth. p. 4Sj ; Burm. Svst. 

 Ueb. iii. p. 78. 



ThamnophUus pilcatus, D'Orb. Voy. Ois. p. 175. 



Herpsilochmus pileaius, Cab. Orn. Not. p. 224 ; Bp. Consp 

 p. 199. 



Pallide plumbeus : pileo, alis caudaque nigris, his albo marginatis : 



superciliis, gutture, et ventre rnedio a/bis. 

 Hab. South-eastern Brazil (Burm.) ; Bolivia, Chiquitos (D'Orb.). 

 Mus. Paris., Berolin. 



2. Herpsilochmus pectoralis. 



Herpsilochmus pectoralis, Sclater, P. Z. S. 1857, p. 132. 

 Cinereus : pileo, alis caudaque nigris, his albo marginatis et rcctri- 

 cum lateralium dimidio apical i albo : superciliis et Ion's a Ibis : 

 -^ subtus di/utior, ventre medio albo : p/aga magna pcctvrali nigra. 



Long, tota 50, alse 2*1, caudae 1*7. 

 Hab. S. America; Brazil. 

 Mus. Brit., Acad. Phil., et P. L. S. 



3. Herpsilochmus rueimarginatus. 



Myiothera rujimarginata, Temm. PI. Col. 132. tig. 1. 



Myiothera variegata, Licht. in Mus. Berol. 



Formicivora rujimarginata, Menetr. Mon. Mvioth. p. 487 ; Burm. 

 Svst. Ueb. iii. p. 7!'. 



Myiothera scapularis, Max. Beitr. iii. 1088. 



Herpsilochmus rufimarginatus, Cab. Orn. Not. i. p. 224 ; Bp. 

 Consp. p. 199. 



cJ . Olivaeeus .• pileo nigro : superciliis a/bis • alis et cauda nigris 



albo trrminatis ; rt migum 7iiuri/iuibus crti-mis In te rufis : subtus 



pallide viridi-flavtts, gula tilbrsiiiitc. 

 2 . Pileo rufo. 



Long, tota in, alas 2*0, caudae l~. 

 Hab. 8.E. Brazil. 

 Mus. Brit., Acad. Phil., P. I- S, 



