438 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Formicaricola chocoana, new species 



Figure S,b,d 



Type: Female adult from Formicarius nigricapillv^s destructu^ 

 Hartert, collected bj^ the author at Rio Jurubida, Department of 

 Choco, Colombia, Mar. 18, 1951 (USNM). 



Diagnosis: The largest of the known females of the genus except 

 analoides (2.13X0,434 against 2.42X0.46). Head of average size, 

 with straight, slightly undulating sides and broad, rather deeply 



Table 3. — List of hosts with their corresponding parasites 



Host 

 Cercomacra 



nigricans nigricans Sclater 



tyrannina tyrannina (Sclater) 

 Formicarius 



analis analis (d'Orbigny and La Fresnaye) 



ayialis moniliger Sclater 



analis satiiratiis Ridgwa}' 



analis umhrosus Ridgway 



analis virescens Todd 



nigricapillus destructus Hartert 



colma amazonicus Hellmayr 

 Grallaria 



perspicillala intermedia Ridgway 

 Gymnopithys 



leucaspis bicolor (Lawrence) 

 Herpsilochnms 



rtifimarginatus f rater Sclater and Salvin 

 Myrmeciza 



hemimelaena hemimdaena Sclater 



immacvlola immaculata (La Fresuaj'e) 



laemostic.ta bolivari de Schauensee 



laemosticta palliata Todd 



longipes boucardi Berlepsch 

 Myrmotherula 



axilla r is fresnnijana (d'Orbigny) 



schislicolor iiilrrior (Cliapman) 

 Percnostola 



leucostigma brunneiceps (Zinimer) 

 Piitasomn 



michleri zeledoni Ridgway 



rufopileatum rosenbergi Hellmaj-r 

 Pyriglena 



leucoptera (Vieillot) 



Parasite 



Formicaphagus latifrons 

 Formicaphagus latifrons 



Formicaricola beni 

 Formicaricola mexicana 

 Formicaricola analoides 

 Formicaricola costaricensis 

 Form, icaricola sanctae-martae 

 Formicaricola chocoana 

 Formicaricola colmae 



Formicaphagus grallariae 



Formicaphagus thoracicus 



Formicaphagus minutus 



Formicaphagus 

 Formicaphagus 

 Formicaphagus 

 Formicaphagus 

 Formicaphagus 



Formicaphagus 

 Formicaphagus 



anguslifrons 



picturatus 



laemostictus 



magnus 



huilae 



bolivianus 

 peruvianus 



Formicaphagus chjpeatus 



Formicaphagus 

 Formicaphagus 



splendidus 

 pittosomae 



Formicaphagus brevifrons 



emarginate hyaline frons; anterior plate slighth^ wider than long, with 

 anterior edge emarginate, sides convex and posterior margin trans- 

 verse, and with all four corners rounded; a well-defined shield covers 

 more than half of anterior portion of plate. 



