1887.] WEST-AFRICAN LEPIDOPTERA. 573 



42. PhRISSURA SYLVIA '. 



Papilio Sylvia, Fabricius, Syst. Ent. p. 470. n. 115 (1775). 

 One male specimen was obtained. 



43. Papilio similis. 



Papilio similis, Cramer, Pap. Exot. i. pi. 9. B, C (1779). 



44. Papilio ucalegon. 



Papilio ucalegon, Hewitson, Exot. Butt. iii. Pan. nl. 7. fig. 19 

 (1865). 



45. Papilio policenes. 



Papilio policenes, Cramer, Pap. Exot. i. pi. 37- A, B (1779). 



46. Papilio erinus. 



Papilio erinus. Gray, Cat. Lep. Ins. Brit. Mus. i. p. 35, n. 127 

 (J 865). 



47- Papilio hesperus, 



Papilio hesperus, Westwood, Arc. Eut. i. pi. 48 (1843). 



Two fine male specimens of this magnificent species. 



48. Papilio cypr^afila. 



Papilio cyprceajila, Butler. Ent. Month. Mag. v. p. 60 (1868). 



49. Hesperia forestan. 



Papilio forestan, Cramer, Pap. Exot. iv. pi. 391. E, F (1782). 



50. Hesperia bix^. 



Papilio bixa, Linneus, Mus. Lud. Ulr. p. 335 (1764). 



51. ASTICTOPTERUS JOHNSTONII, Sp. n. 



Dark chocolate-brown ; primaries crossed obliquely near apex by 

 a sem.itransparent amber-yellow belt from costa to just below second 

 median branch near outer margin, the inner edge of the band almost 

 straight, the outer edge arched, so that it forms almost a half-moon 

 shape ; costa of secondaries pale ; sides of palpi, front edge of collar, 

 and under surface of tarsi orange ; primaries below with pale brown 

 internal border. Expanse of wings 57 millim. 



Not nearly allied to any known species. 



52. Thanaos -westermanni. 



Hesperia westermanni, Latreille, Enc. Meth. ix. p. 791. n, 167 

 (1823). 



53. Tagiades flesus. 



Papilio Jlesus, Fabricius, Spec. Ins. ii. p. 135. n. 621 (1781). 



^ I find that the species of this group belong to Phrissura, which will now 

 contain P. phaola, P. sylvia, P. eudoxia, P. coniata, P. polisma, and P. illana. 



Prjc. Zool. Soc— 1887, No. XXXVIII. 38 



