1896. | BUTTERFLIES OF THE FAMILY HESPERIID 2. 45 
142. R. eauatia, Hew. (Plate III. figs. 89, 15¢.) 
- Hesperia galatia, Hew. Descript. Hesper. p. 36 (1868). 
Pamphila rhabdophorus, Mab. Bull. Soc. Ent. France, (6) vol. ix. 
p- exlix (1889). 
Dimorphiec var. 2, sosia, Mab. 
Pamphila sosia, Mab. C. R. Soc. Ent. Belg. 1891, ‘p. elxxi. 
Hab. Old Calabar (Hewitson) ; Gaboon (Good) ; Mozambique 
(Mabille). 
I have an enormous series of specimens of this insect, both males 
and females. It is absolutely impossible to distinguish between 
the females of R. galatia and R. sosia. Sosia merely differs from 
galatia in being without the raised velvety brand of scales upon 
the primaries below the end of the cell. Some vestiges of this 
sexual mark, however, appear in a few specimens. I am perfectly 
convinced that the insects do not specifically differ from each 
other, and that we are simply dealing here with dimorphism 
affecting the sexual stigmata of the male sex. This is a singular 
fact, and, so far as my observation extends, hitherto unobserved. 
PAROSMODES, gen. noy. 
Closely allied to the genus Osmodes, from which it differs princi- 
pally in the form of the palpi, the third joint of which is long and 
porrect, whereas in typical Osmodes the third joint is short and 
suberect. 
The antenne are moderately long, exceeding the middle of the 
costa. The neuration of the primaries and the secondaries is as in 
Osmodes, and there is likewise at the origin of veins 2 and 3 of the 
secondaries a raised patch of scales as in Osmodes. The primaries, 
as in the latter genus, have also a long tuft of hairs about the 
middle of the hind margin; these hairs are ordinarily folded 
forward against the under surface of the primaries as in Osmodes. 
Type P. moranti, Trim. 
143. P. MoRANTII, Trim. 
Pamphila morantii, Trim. Trans. Ent. Soc. Lond. 1873, p. 122. 
Pamphila ranoha, Westw. App. Oates’s Matabeleland, p. 353 
1881 
Panphila morantii, Trim. 8S. Afr. Butt. vol. iii. p. 311, pl. xii. 
fig. 3 (1889). 
Osmodes runoha, Butl. P. Z. S. 1893, p. 670. 
Hab. South Africa and South Tropical Africa. 
144. P. 1crer1a, Mab. 
Pamphila icteria, Mab. C. R. Soc. Ent. Belg. vol. xxxv. p. clxxx 
(1821). 
Pamphila zimbaso, Trim. P. Z. 8. 1894, p. 74, pl. vi. fig. 17 2. 
Hab. Manica-land (Trimen) ; Transvaal (Mubille). 
