FORMICARTNiE. 



quills equal and longest. Tail short and much rounded. Tarsi longer than the middle toe, and covered 

 in front with scarcely divided scales. Toes moderate, with the outer rather longer than the inner, and 

 united at the base, the hind toe long and strong; the claws moderate, curved, and acute, that of the hind 

 toe long, and more or less curved and acute. 



It is in tropical portions of America that these birds are usually seen on the ground or on the trunks of trees, on 

 which they support themselves by means of their tails, searching for ants and other kinds of insects. 



1. F. cayanensis Bodd. PL enl. 821. — Turdus colma Bodd. ; 

 Myiothera ruficeps Spix, A v. Bras. t.72. f. 1. ; Myrmothera tetema 

 et M. fuscicapilla VieilL, PL enl. 703. f. 1. 



2. ? F. umbrettus (Licht.) Cat. Dupl. Berl. Mus. p. 43. 



3. P. torquatus Bodd. PL enl. 700. f. 1. — Turdus formicivorus 

 Gmel. ; Myioturdus palikour Menetr. 



4. F. lineatus (Gmel.) PL enl. 823. f. 1. 



5. F. analis (D'Orb. & Lafr.) Syn. Avium, p. 14., Voy. dans 

 l'Ame'r. Ois. t. 6*. f. 1. 



6. F. nigromaeulatw (D'Orb. & Lafr.) Syn. Avium, p. 14., 

 Voy. dans l'Amer. Mer. Ois. t. 6*. f. 2. 



7. F. hngipes (VieilL) N. Diet. d'Hist. Nat. xvii. p. 321., 

 Swains. Zool. Illustr. pi. 23. — Drymophila gralleria Swains. 



8. F. thamnophiloides (Spix), Av. Bras. t. 52. f. 1, 2. — Myrmo- 

 thera atricapilla VieilL ? ; Thamnophilus myiotherinus Spix. 



9. F. gularis (Spix), Av. Bras. t. 41. f. 2., Mem. de l'Acad. 

 Sci. St. Petersb. 1835. t. 2. f. 2. — Myiothera cinerea Pr. Max. 



10. F. cirrhatus (Gmel.) PL enl. 643. f. 2. — Myrmothera 

 axillaris VieilL ; Myiothera fuliginosa III. ■ Formicivora brevi- 

 cauda Swains. ; Thamnophilus melanogaster SpLv, Av. Bras. t. 43. 

 f. 1. 



1 1. F. unicohr (Mene'tr.) Mem. de l'Acad. Sci. St. Petersb. 1S35. 

 p. 480. t. 2. f. 1. 



12. F. surinamensis (Lath.) Lath. Hist, of B. pi. 28. — Musci- 

 capa pygmsea Lath. 



13. F. minutus (D'Orb. & Lafr.) PL enl. 831. f. 2. 



14. F. guttatus (VieilL) Gal. des Ois. t. 155. 



15. F. Menetriesii (D'Orb.) Voy. dans l'Ame'r. Me'r. Ois. p. 184. 



16. F. Fresnayanus D'Orb. Voy. dans l'Amer. Me'r. Ois. t. 6. 

 f. 1. 



17. F. superciliosus (Cuv.) Iconogr. Guer. t. 11. f. 1. 



18. F. mentalis (Temm.) PL col. 179- f. 2.— Myiothera polioce- 

 phala Pr. Max. 



19- F. olivaceus (Tschudi), Fauna Peruana, p. 18. 



20. F. axillaris (Tschudi), Fauna Peruana, p. IS. 



21. F. strictothorax (Temm.) PL col. 179. f. 1,2. — Lanius 

 guttatus Licht. 



22. F. affinis (D'Orb. & Lafr.) Syn. Avium, p. 13. 



23. F.flammatus (Strickl.) Ann. Nat. Hist. xiii. p. pi. 13. 



24. F. calcaratus (Pr. Max.) Beitr. iii. p. 1101. —Type of Co- 

 rythopis Sundev. (1835). 



25. F. torquatus (Tschudi), Fauna Peruana, p. 19. 



26. F. brachyurus (VieilL) Rev. Zool. 1843. p. 66 Type of 



Ramphoeinclus Lafr. (1843). 



27. F. tremulus (Lafr.) Rev. Zool. 1843. p. 66. 



28. F. gutturalis (Lafr.) Rev. Zool. 1843. p. 66. 



Formicivora Szvains* 



Bill more or less long and strong, with the culmen keeled, slightly curved, and the sides compressed 

 to the tip, which is emarginated ; the gonys long and ascending ; the nostrils lateral, with the opening- 

 rounded, exposed, and placed anteriorly in a small membranous groove. Wings rather short, and much 

 rounded, with the fourth quill nearly as long as the fifth and sixth, which are equal and longest. Tail 

 rather lengthened, and much rounded. Tarsi longer than, or as long as, the middle toe, and covered in 

 front with slightly divided scales. 'Toes long, with the outer toe longer than the inner, and united at 

 the base, the hind toe long ; the claws moderate, curved, and acute, that of the hind toe long and strong. 



The species that are embraced in this genus reside in the virgin forests of the tropical parts of America : they are 

 either seen solitary or in small flocks of five or six individuals, moving quickly about the lower small branches of the 



* Mr. Swainson established this genus in 1824 (Journ. Zool. ii. p. 145.). It embraces Leptorhynchus of M. Mene'tries (1832), with 

 which Holocnemis of Mr. Strickland (1844) is synonymous; and Drymophila of Mr. Swainson (1824), with which Myrmeciza G. R. 

 Gray (1841) is synonymous. 



