40 DR. W. J. HOLLAND ON THE AFRICAN [Jan. 14, 
TrrnorHinvs’, Holl. 
Neuration of Teinorhinus watsoni, Holl., g. 2. 
131. T. watsont, Holl. (Plate ITI. fig. 10.) 
T. watsoni, Holl. Ann. & Mag. Nat. Hist., Oct. 1892, p. 292. 
Hab. Gaboon. 
Osmopzs, Wats. 
This is a well-marked genus, the males of which may be distin- 
guished at a glance by the patch of glandular raised scales located 
on the secondaries near the cell. The females differ greatly from 
the males upon the side, and in several species seem to be very closely 
related to each other in the pattern of the markings. In fact it 
is in many cases possible to discriminate between them only by 
paying the most careful attention to small points of difference, and 
by having specimens taken zm coitu. Fortunately I have been able 
to satisfactorily solve most of the puzzling problems which the 
difference of the sexes present, thanks to the possession of vast 
series of specimens, carefully collected and accompanied by satis- 
factory observations in the field. It may be said that it seems to 
me that there is strong probability that several of the species are 
dimorphic. But further research upon the ground is necessary to 
establish this supposition. 
132. O. naRonta, Hew. (Plate IV. figs. 1¢, 29.) 
O. laronia, Hew. Descript. Hesper. p. 35 (1868). 
Plastingia laronia, Ploetz, 8. E. Z. vol. xl. p. 356 (1879), vol. xlv. 
p- 145-6 (1884). 
Osmodes laronia, Wats. P. Z. 8. 1893, p. 78. 
Hab. Gold Coast, Gaboon. 
This species is labelled Plastingia bicuta by Mons. Mabille in 
Dr. Staudinger’s collection, but the name has never been published. 
133. O. THORA, Ploetz. (Plate IV. figs. 33,59.) 
Plastingia thora, Ploetz, S. E. Z. vol. xlv. p. 145 (1884). 
Osmodes thora, Wats. P. Z. 8S. 1893, p. 79. 
Hab. Guinea (Ploetz), Gaboon (Good). 
1 By a misprint in the ‘ Annals,’ originally published as “ Zeniorhinus.” 
