1920] Hollanil, Lepidoptera of the Congo 313 



Problepsis Loderer 



(669) 1. Problepsis aegretta Felder 

 Problepsis ecgrelta Felder, 1867, Reise Novara, Lep., PI. cxxviii, fig. 14. 



A single specimen, agreeing with those in the British Museum and 

 others in my collection, which have been compared with them. It was 

 caught at Banana, June 21, 1909. 



OsTEOSEMA Warren 



(670) 1. Osteosema (?) phyllobrota, new species 



Plate XIV, Figure 6, & 



cf, 9 . Eyes black; frons, palpi, vertex, and antennae pale gray; the antenna; 

 are relatively short in both sexes, bipectinate until near the tip; the collar is whitish; 

 the patagia and upper side of the thorax are deep grass-green; the lower side of the 

 thorax and the entire abdomen are pale gray, or whitish; the legs are also pale gray, 

 the hind tibia armed at the end with two spurs. The costa of the fore wing is gray, 

 densely irrorated with dark brown scales, most numerous on the margin; there is a 

 very fine whitish subcostal line from the base to the apex; the basal half of the wing 

 is grass-green, dissected into three spots by two fine white lines running inwardly 

 from the costa, the first of these lines being located about one-fifth the length of the 

 costa from the base, the second at the end of the cell, the first line extending to the 

 inner margin, the second being lost in the pale outer area of the wing; the basal green 

 spot is subtriangidar, the middle spot, which is the largest, is pentagonal, the outer 

 spot, located near the costa at the end of the cell, is the smallest, and is triangular. 

 The outer half of the wing is cream-color, more or less densely punctated with minute 

 transverse brown stria;; there is a large green subapical spot very irregular in its 

 outline, which extends from the subcostal line downward and outward, almost 

 touching the outer margin about its middle, this spot near the apex is traversed by a 

 fine white line on vein 7 cutting off a small triangle of green; at its lower end it is 

 rounded and continued downward by a small lobular extension located between veins 

 3 and 4; the inner angle of the wing is clouded with a few brown scales; there is a 

 fine dark brown marginal line; the fringes are whitish. The hind wing on the costa 

 is pure white from the base to near the upper angle of the wing; at the base of the 

 wing adjacent to the inner margin is a large green spot, defined outwardly by an irreg- 

 ular narrow white line, angulated outwardly at the end of the cell, and defined out- 

 wardly by a narrow green shade, broadest near the costa. The broad pale area 

 beyond this line is marked as on the fore wing with minute transverse dark stria?, 

 beyond it on the submarginal area, extending from the upper angle of the wing down- 

 ward to vein 2 is a long irregularly shaped green spot defined outwardly by white; 

 the anal angle is clouded with dark brown, the dark brown marginal line and the 

 fringes are as on the fore wing. On the under side both wings are silky white. 



The female does not differ materially from the male in the pattern of the markings 

 of the wing, except that the green spots show a tendency to become obsolete and to 

 fade into the paler surrounding areas of the wing, this being particularly true of the 

 hind wing, which in one specimen before me has the marginal green spot of the hind 

 wing almost altogether lost. Expanse, 32-35 mm. 



