104 DR. A. G. BUTLER ON THE [Feb. 6, 



26. Lepus arabicus Hempr. & Ehr. 



a. c? . Shaka, 29th August. 



b. Hiswa, 20th September. 



c. Young. La Mileh, 16th August. 



" Fairly common in the more fertile wadis, but extremely difficult 

 to shoot — unless you have a good camel that will stand when you 

 tell it to : then, by following as quickly as possible among the 

 bushes, one can get them. I only shot 4 all the time I was out. 

 Breeding-time must be about October, as the female got at Sheikh 

 Othman late n September was in kindle, 6 young ones." 



27. Procayia striaca jayakari Thos. 



a. Abyan Mountains, 70 miles X.E. of Aden. 



This is the first Dassy obtained in the Aden region, the previous 

 examples of the subspecies having come from Dofar, halfway 

 towards Muscat {Jayahar), and from Xejd in Central Arabia 

 (Schweinfu rth). 



" Hyrax. — Not rare in the hills behind Shukra,but very difficult to 

 get within shot, as the Bedouins are always hunting them for food ; 

 1 saw 20 or more in one place, but they all cleared before I got 

 within 100 yards. I saw a lot of snares set for them, but while I 

 was in the district none were captured : the snares were set in the 

 mouth of a hole. The hyrax is not much of a wanderer and feeds 

 close to his hole. There are two species of Eagle about the hills 

 which subsist almost entirely on them, so they have plenty of foes. 

 According to a Bedouin from Dethina ', the Leopards live to a 

 large extent on Dassies, which seem to be very common in Dethina, 

 and Leopards are fairly numerous." 



28. Capra sinaitica Hempr. & Ehr. 



a. Skull and horns. Abyan Mountains. 



3. A Revision of the Butterflies of the Genus Zizera repre- 

 sented in the Collection of the British Museum. By 

 Arthur G. Butler, Ph.D., F.L S., F.Z.S. &c. 



[Received January 18, 1900.] 



(Plate XI.) 



"Whilst rearranging the Museum series of " Blues " referable 

 to the genus Zizera, I have discovered so much of interest, that, 

 although at present I am not prepared to assert that the genus is a 

 good one (when examined structurally), I feel that a revision of it 

 is greatly needed. 



In De Mceville's ' Butterflies of India,* a work of great merit 

 and therefore deserving of all respect, I find certain species 

 regarded as synonyms which to me appear to be as distinct as 



1 Dethina lies some 200 miles N.E. of Aden. 



