764 MR. A. G. BUTLER ON [NoV. 3, 



22. Tarucus theophrastus. 



Hesperia theophrastus, Fabricius, Ent. Sj'st. iii. 1, p. 281, n. 32 

 (1793). 



Lyccena theophrastus, Lucas, Expl. Alg., Zool. iii. pi. 1. fig. 6 

 (1849). 



S $ . December 23rd. — Thrupp. 



23. Castalius lactinatus, sp. u. (Plate XLVII. fig. 3.) 

 Allied to C. cretosus of Abyssinia. Milk-white ; basal markings 



above as in 0. carana and C. cretosus ; external border similar to 

 that of C. cretosus, but with larger subapical white spots, with a 

 marginal series of small white spots and shining white-tipped fringe : 

 secondaries with a discal series of six small blackish spots close to 

 the external border, the first two confluent and separated by an in- 

 terval from the others ; external borders bounded internally by a 

 black-brown stripe almost parallel to outer margin and emitting 

 spurs along the veins to the outer margin ; between the veins a sub- 

 marginal series of differently formed black spots, that above the tail 

 being large ; marginal line black ; tail black, tipped with white : under 

 surface milk-white, all the markings slender and sharply defined ; 

 otherwise formed as in G. calice, excepting that the whole of the 

 subm.arginal spots on the primaries, the first and fourth on the secon- 

 daries, and the short band across the end of the cell of these wings 

 are wholly absent. Expanse of wings 27 millim. 

 One female. — Thrupp. 



24. Hyreus lingeus. 



Papilio lingeus, Cramer, Pap. Exot. iv. pi. 379, F, G (1782). 

 <S 2 .—Thrupp. 



25. Spindasis soSialina, sp. n. (Plate XLVII. fig. 5.) 



Allied to S. ella from Natal, but considerably larger ; the upper sur- 

 face with much more brilliant ultramarine-blue shot, and with the spots 

 on the primaries smaller and partly white in the male and pure white 

 in the female instead of ochreous ; secondaries more elongated : 

 primaries below snow-white excepting the basal discoidal patch, 

 which is pale buff and encloses two bright metallic plumbageous 

 spots ; bands arranged as in >S. ella excepting that there is a conti- 

 nuous submarginal band (whereas in 8. ella there are only two short 

 sections, one at costa and one in the middle) ; all the bands clay- 

 coloured and enclosing series of plumbageous dashes ; external 

 border pale buff, excepting towards the external angle, where it be 

 comes gradually white, intersected by a black line and edged exter- 

 nally with black ; fringe grey-brown : secondaries pale buff wuth the 

 exception of central part of the costal half, which is pure white ; 

 markings nearly as in 8. ella, but the subbasal spots more elongated 

 and therefore contiguous, and the bands broader ; all these markings 

 clay-coloured, with central bright plumbageous or silvery streaks ; 

 external border pale buff, varied with cream-colour and intersected 



