1896. | FROM NYASA-LAND. 117 
Var. dirceea: 
Henga, W. of Lake Nyasa, Feb. 1st, 1895. 
* Rose and black white-tailed Fritillary ” (2. C.). 
This form varies, not only in the width of the black apical 
patch of primaries, the position of the second spot of the central 
transverse series, the width of the black border of the secondaries 
with its more or less defined submarginal spots, but, curiously 
enough, the terminal two-fitths of the abdomen may be either 
ochreous or snow-white. As in the variety aria (Q, nero) the 
submarginal spots of the primaries are wanting. ‘I'he specimen 
now received bears a strong general resemblance to A. natalica. 
In his paper, published in the ‘ Proceedings’ for 1891, Mr. 
Trimen lays stress upon the absence of the submarginal spots 
as a good character for the discrimination of A. avina from 
A. doubledayt: I am sure that his earlier decision was the correct 
one, and that this character cannot be relied upon; in A. cecilia, 
var. stenobeca (2 =lyus=albomaculaia) the submarginal spots are 
sometimes present, sometimes absent *. 
37. ACREA NATALICA. 
Acrea natalica, Boisduval, Voy. de Deleg. p. 590 (1847). 
3 2, Foot of Jakwa Mt., Henga-Nkamanga, W. of Lake Nyasa, 
Jan. 28th and 29th; ¢, Mtambwi, foot of Nyika plateau, 
Feb. 4th, 1895. 
3, “ Rose and black Fritillary” ; 9 , “ Dusky Fritillary ” (2. C.). 
With our present extensive series it is impossible to keep 
A, pseudegina distinct from A. natalica, of which it is only the 
Western phase, the two extremes are completely linked by inter- 
grades. 
38. ACRHA CALDARENA. 
Acrea caldarena, Hewitson, Ent. Month. Mag. xiv. p. 52 
(1877). 
3 2, taken in coitu, Kondowi, Lower Nyika, April 6th, 1895. 
I gave the correct synouymy of this species (if species it be) in 
the ‘ Proceedings’ for 1893, p. 657. I, however, strongly suspect 
it tu be merely a seasonal development of A. cecilia, var. stenobea, 
from which it chiefly differs in the broad black apical patch on 
the primaries. 
39. ACR#HA ASEMA. 
Acrea asema, Hewitson, Ent. Month. Mag. xiv. p. 52 (1877) ; 
Trimen, P. Z.8. 1894, p. 24, pl. iv. figs. 3, 3 a. 
Acrea empusa, Butler, P. Z. 8. 1893, p. 656. 
Acrea omrora, Trimen, P. Z.S. 1894, p. 24, footnote. 
2, Lumpi R., Lower Nyika, Feb. 2nd, 1895. 
* Small speckled Fritillary ” (2. C.). 
1 My identification of A. stenobea with a S.-African male of A. ligus was 
confirmed by Prof. Aurivillius during his recent visit (Aug. 1895). 
