1874.] butterflies of costa rica. 369 



415. Pamphila zabulon. 



Hesperia zabulon, Boisduval & Leconte, Lep. Am. Sept. pi. 76. 

 figs. 6, 7 (1833). 



Hesperia hobomok, Harris, Ins. Mass. p. 313, fig. 137 (1862). 



Hesperia pocahontas, Scudder, Proc. Ess. Inst. iii. p. 171. n. 67 

 (1862). 



Var. melan. Hesperia quadraquina, Scudder, Proc. Bost. Nat. Hist. 

 Soc. xi. p. 381. n. 76(1861). 



416. Pamphila ares. 



Hesperia ares, Felder, Verh. zool.-bot. Ges. Wien, xii. p. 477. 

 n. 65 (1862). 



417. Pamphila athenion. 



Talides athenion, Hubner, Samml. ex. Scrim. (1816-41). 



418. Pamphila viBEX. 



Thymele vibex, Hubner, Zutr. ex. Schm. figs. 685, 686 (1832). 



419. Pamphila uniformis. 



Pamphila uniformis, Butler & Druce, Cist. Ent. v. p. 113 (July 

 1872). 



420. Pamphila inimica. 



Pamphila inimica, Butler & Druce, Cist. Ent. v. p. 114 (July 

 1872). 



Genus 129. Pyrgus, Hubner. 



421. Pyrgus syrichtus. 



Papilio syrichtus, Fabricius, Syst. Ent. p. 534. n. 394 (1775). 

 Papilio orcus, Cramer, Pap. Exot. iv. pi. 334. figs. I-L(1782). 

 Pyrgus mantivagus, Reakirt, Proc. Acad. Nat. Sci. Philad. p. 334. 

 n. 33 (1866). 



Genus 130. Pythonides, Hubner. 



422. Pythonides tryxus. 



Papilio tryxus, Cramer, Pap. Exot. iv. pi. 334. figs. G, H (1782). 



423. Pythonides sallei. 



Leucochitonea sallei, Felder, Reise der Nov. Lep. iii. p. 525. 

 n. 723, pi. 74. fig. 25 (1867). 



Genus 131. Thanaos, Boisduval. 



424. Thanaos funeralis. 



Nisoniades funeralis, Scudder & Burgess, Ass. Hex. Ins. in Proc. 

 Bost. Nat. Hist. Soc. xiii. p. 293 (1870). 

 Very similar to T. tristis, Boisd. 



425. Thanaos invisus. 



Thanaos invisus, Butler & Druce, Cist. Ent. v. p. 1 14 (July 1872). 



