256 Bulletin American Museum of Xatural History [Vol. XLIII 



OsMODES Watson 



(461) 1. Osmodeslaronia (Hewitson) 



Hesperia laronia Hewitson, 1868, Descript. Hesper., p. 3o. 



Plastingia laronia Plcetz, 1879, Stett. Ent. Zeit., XL, p. 356; 1884, idem, XLV, 



pp. 145-146. 

 Osmodes laronia Watson, 1893, Proc. Zool. Soc. London, p. 78. Holland, 1896, 



Proc. Zool. Soc. London, p. 40, PI. iv, figs. 3, 5. M.\bille, 1904, Gen. Ins., 



XVn, p. 102. 



Represented by a male and female captured at Medje in August 

 1910. 



Hypoleucis ]\Iabille 



(462) 1. Hypoleucis cretacea (Snellen) (?) 



Goniloba cretacea Snellen, 1872, Tijd. v. Ent., p. 27, PL ii, figs. 4-6. 



Hesperia gonessa Hewitson, 1877, Ann. Mag. Nat. Hist., (4) XIX, p. 76. Heron, 



1898, Ann. Mag. Nat. Hist., (7) I, p. 256. 

 Hypoleucis cretacea Holland, 1896, Proc. Zool. Soc. London, p. 47 (where further 

 synonymy is given). 



There is a single somewhat damaged female which I refer with 

 caution to this species, from typical examples of which it apparently 

 differs only by a reduction in size of the translucent white spots of the 

 primaries. The specimen was captured at Medje, July 17, 1910. 



Leptalina Mabille 

 M. P. Mabille, in his Revision of the Family Hesperiidae in the 

 'Genera Insectorum,' published by P. Wytsman, has erected the genus 

 Leptalina for the reception of Cyclopides unicolor Bremer and Gray, 

 which is found in China and Japan, and the three African species, 

 lepeletieri (Latrei\\e),tsita (Trimen), and inornatus {Trimen) , which hith- 

 erto have been commonly regarded as belonging to the genus Cyclopides. 

 I am quite familiar with the Asiatic species, having personally collected 

 it in quantity when engaged in research Avork in Japan in 1887. I am 

 somewhat dubious as to the propriety of removing it from the genus 

 Cyclopides. There seems to me to be more propriety in separating the 

 three African forms from their former association. I propose to add to 

 the genus Leptalina Alabille another species the description of which 

 is given herewith. 



(463) 1. Leptalina niangarensis, new species 



Plate XII, Figure 3, d" 

 c? . Palpi dark fuscous, upper side of thorax and abdomen blackish, lighter on the 

 under side, inclining to ochraceous, the terminal segments on their posterior edges 

 marked laterally with pale scales. Both fore and hind wings on the upper side uni- 



