28 MR. R. TRIMEN ON 13FTTERFLIES FROM rJan.lH, 



between typical A. aglaonice and the variety now under notice, 

 having the transparent spots and basal fuscous moderately 

 developed in the fore wings ; but the two females differ from the 

 Mineni Valley female only in the much clearer transparent spots. 



20. ACR-EA NATALICA, Boisd. 



Acrcea natalica, Boisd. App. Vo}\ Deleg. dans l'Afr. Aust. 

 p. 590. n. 57 (1847). 



This species is numerous over a wide stretch of Eastern and 

 South-eastern Africa. Mr. Selous's collection contains 36 speci- 

 mens, 29 of which were captured in Christmas Pass. 



21. Acr^ea ant.mosa, Hewits. 



Acrcea anemosa, Hewits. Exot. Butt. iii. pi. 8. figs. 14, 15 

 (1865). 



The only examples are an unusually small male, captured at the 

 Sikuva Biver on 4th March, and an ordinary female taken in 

 Christmas Pass on the 16th February. 



In ' South-African Butterflies ' (i. p. 158) I have described an 

 " Aherration — ? $ ," from Damaraland, in the Hewitson Col- 

 lection, in which on the upperside there is white clouding about 

 the extremities of the nervules in the fore wings, and a large 

 white cloud in the hind wiugs replacing nearly all the reddish 

 ochre-yellow of the central band. Mr. Selous in 1889 sent me a 

 male presenting the same peculiarities, and also the distinction of 

 the fore wings being salmon-pink without any tinge of the usual 

 yellow-ochreous ; this very striking example was captured a little 

 south of the junction of the Chobe and Zambesi. 



22. Acrjea acrita, Hewits. (Plate IV. fig. 4, var., 3 .) 



Acrcea acrita, Hewits. Exot. Butt. iii. pi. 8. fig. 18 (1865); 

 Trimen, op. cit. iii. App. i. p. 381. n. 381 (1889). 



There are 19 examples of this fine Acrcea from Christmas Pass, 

 1 from Sikuva Biver, 3 from Mineni Valley, 1 from Vunduzi 

 Biver, and 2 (of a larger variety) from Revue* Biver. "With the 

 exception of the two last-named, all may be regarded as belonging 

 to the typical form ; the males expand from 2 in. 2 lin. to 2 in. 

 bh lin., the females the same. Both .sexes show a good deal of 

 variation as regards the width of the apical fuscous border in the 

 fore wings, and in the numbers (7 or < s ) and relative sizes of the 

 rounded discal spots in the hind wings ; the subbasal black spot 

 in the fore wings is much reduced in several males and females, 

 and is wholly wanting in two of the latter. The males also 

 exhibit on the upperside much instability in respect of the width 

 of the hind-marginal border of the hind wings and the distinctness 

 of its enclosed spots, the border being usually more or less 

 extended internally in a different manner between the third median 

 uervule and the anal angle, and the enclosed spots giving every 

 grade from perfect development to (in one example) complete 



