SHEFFIELDIA; PENTILA. By Dr. C. AuRrviLLUTS. 
303 
the middle of the wing; veins 5 and 6 and 6 and 7 are distinctly separate at their origin and the upper disco- 
cellular of the forewing is very oblicpie. Vein 8 is strongly curved at the base and the precostal vein arises 
far from the cell. The butterflies have a sluggish flight and rest on stones with which the markings and colour¬ 
ing of the under surface agree. — Larva elongate, cylindrical or somewhat spindle-shaped, with distinct 
segments, long-haired. Pupa short and thick, convex above, flat beneath; upperside of the thorax and sides 
and back of the abdomen with long hair-pencils. 
Synopsis of the Species. 
A. Wings above black to black-brown and beyond the middle with a transverse row' of 5 or 6 red or red- 
yellow spots. Under surface of the hindwing more or less irroratecl with white, but without white trans¬ 
verse streak or band. 
a. The transverse row of spots- on the upper surface is at least 2 mm. from the distal margin and 
orange-yellow in colour. The spots of the forewing are smaller at the costal than at the inner margin. 
D. amakosa. 
b. The transverse row of spots on the upper surface is placed close to the distal margin and is orange-red. 
The spots of the forewing are larger at the costal than at the inner margin. D. limbata. 
B. Hindwing beneath beyond the middle with a white transverse band or line sharply angled at vein 5 and 
dark-edgecl proximally. Wings above dark brown with a transverse row of 5 small ochre-yellow spots 
placed almost 3 mm. from the distal margin. D. saga. 
D. amakosa Trim. (62 a). Wings beneath irrorated with white, the forewing less than the hindwing; amakosa. 
the orange-yellow transverse band of the upper surface is absent beneath on the hindwing, but on the fore¬ 
wing is broader, more continuous and margined with black. The $ has broader orange-yellow transverse bands 
on the upper surface. — Larva ash-grey with a dark dorsal line bordered by whitish spots and with rounded red 
lateral spots, which on the first segments are separated by white patches; head red; body clothed with longer 
ash-grey and shorter yellowish hairs; lives on a common grass, Anthistiria ciliata. Pupa light brown; dorsum 
and sides very hairy; thorax and basal half of the abdomen with pencils of shorter yellowish and longer white 
hairs; the tip of the abdomen covered by the cast off larval skin. Cape to Transvaal. 
D. limbata Ti 'im. differs from D. amakosa above in the characters given in the synopsis. Beneath the limbata. 
white scales form dark-pupilled rings and the hindwing has a strongly curved row of orange-yellow, black- 
ringed submarginal spots in cellules 1 a—7. Natal and Transvaal. 
D. saga Trim. (62 a) differs from the other two species especially in the markings of the under surface, saga. 
The cell of the forewing above is more or less yellow-scaled and the forewing beneath has two transverse rows 
of light spots in the distal part. Cape. 
5. Genus: Slieffielclkt Ham. Druce. 
This genus, which is unknown to me, is described by the author as being nearly allied to Cooksonia, from 
which it differs in veins 5 and 6 of the forewing, which arise from the same point or are short-stalked; 
the middle discocellular vein, which is present in Cooksonia, is consequently entirely absent. Palpus and an¬ 
tenna as in Cooksonia. The other characters given in our generic synopsis are taken from a figure of the 
neuration. In this figure the precostal vein of the hindwing is wanting; it is, however, possible that this was 
overlooked by the artist. 
S. neavei Ham. Druce (63 a). Forewing above black with an orange-red transverse band, which from the neavei. 
costal margin to vein 4 is only 4 mm. in breadth, but then widens rapidly, reaches the base of cellules 3—1 b 
and also forms a longitudinal streak at the hindmargin of the cell; forewing beneath almost as above, but in the 
black marginal band with whitish yellow rectangular marginal spots, which in cellules 1 b—3 are joined to the 
orange-red median band. Hindwing above orange-red with black marginal band 4 mm. in breadth and nar¬ 
rowing at the anal angle and with a rounded black spot at the apex of the cell; beneath lighter yellow with 
several black basal and discal dots and a black marginal band, which encloses a curved row of blue submar¬ 
ginal and yellow marginal spots. German East Africa. 
6. Genus : I*entila Westw. 
The numerous species of this genus may be known at once by the very long cells, which extend far beyond 
the middle of the forewing. The antenna has a flattened, well defined club and does not reach the apex of the 
