92 LT.-COL. J. M. FAWCETT ON 



he has preserved the locality and date of every specimen, by which 

 the time of flight of the various forms is recorded, and also for 

 the excellent condition of the specimens. 



My thanks are especially due to the Hon. Walter Rothschild, and 

 to Sir George .Sampson, whose kind assistance was of great value 

 to me in working out the various species in the British Museum. 



The following is a list of the localities given in this memoir :— 



(1) Kedai, British East Africa. Altitude 2500 feet, 120 miles 



from the coast. 



(2) Kibweisi, ditto. Altitude 3000 feet, 114 miles 



up Uganda Railway. 



(3) Voi, ditto. Altitude 1800 feet, 101 miles 



up Uganda Railway. 



(4) Masougaleni, ditto. Altitude 3000 feet, 182 miles 



up Uganda Railway. 



In describing the various new species, I have indicated in each 

 case the form in the British Museum which I have found to be 

 nearest to. it, and stated the points of difference between them. 

 The figures of new species are drawn to exact size by myself. 

 From the fact that many of the species were taken in November 

 and December and again in March and April, it would appear 

 that they are at least double-brooded. 



A few species are added to this paper which were taken by 

 Lady Colvile at Merit, B. E. Africa, but unfortunately I have not 

 got the dates or elevation of the locality. 



HETEROCERA. 



Syntomid.e. 



1. Metarctia ne^era, sp. n. (PI. I. fig. 6.) 



Description. — S - Head, body, and wings unicolorous pale 

 reddish brown, the hind wings almost diaphanous in the centre. 

 A very indistinct fuscous spot at the apex of cell of fore wing. 



Habitat. Kedai, 24th November. Expanse 40 mm. 



This species is allied to M. pulverea Hampson, from Ruwenzori, 

 from which it differs in having a blunter apex to the fore wing, 

 and in lacking the black spot at the base of interspace 2, and the 

 irroration of black atoms which covers the fore wing in pulverea. 



2. Metarctia flavicincta Aurivillius. 



Habitat. Meru, B. E. Africa. Taken by Lady Colvile. 



3. Metarctia lateritia Herr.-Schaff. 



Habitat. Meru, B. E. Africa. Taken by Lady Colvile. 



4. Thyretes negus Oberthiir. 



Habitat. Kedai, 25th November. 



Agrees with the description of negus, except that the white 

 spot in cell of fore wing is quadrilateral and not triangular. 



