280 Dr. G. B. LongstafT on 



so far north as Capt. Wilson's, are Pinacropteryx venata, 

 Teracolus achine, Eronia leda and Terias brigitta. [See 

 notes to these species under the serial numbers 40, 55, 63 

 and 67.] ... It will be gathered that the predominant 

 forms of Pierines in Capt. Wilson's collection are those 

 characteristic of Arabia and North-east Africa. The chief 

 exceptions to the general ' desert ' aspect of the Pierine 

 fauna are afforded by Eronia leda and Glutophrissa 

 epaphia. 



" The dry-season characters are strongly marked 

 throughout the series, the chief exceptions occurring in 

 two species of the genus Teracolus (T. eupompe and T. 

 evagore). Of the former species, one specimen is ' wet ' 

 and six are ' dry.' Of the latter, two are ' wet ' and four 

 ' dry.' " 



36. Herpaenia eriphia, Godt. 



Two 33, Kadugli, Dec. 14, 23, 1904. 

 " Both of the ' dry ' northern form, = lacteipennis, 

 Butl." 



37. Belenois gidica, Godt. 



A 3, Tira Mandi, Nov. 25, 1904; a 3, Tatcho, Nov. 28, 

 1904; three 33, Kadugli, Dec. 13, 21, 1904. 

 " Dry season." 



38. Belenois severina, Cram. 



Four 33, Kadugli, Dec. 27, 1904; one Q, Sungikai, 

 Nov. 13, 1904. 



The latter locality is 1° 20' north of the furthest range 

 given in the White Nile list. 



Dr. Dixey writes : " These are of what is usually con- 

 sidered the wet-season phase. The seasonal colouring 

 resembles that shown by Mr. Marshall's Mashonaland 

 specimens captured in March, and his bred Mashonaland 

 specimens emerging in June after exposure to damp heat 

 as both larvae and pupae. Two of the males are con- 

 spicuously marked on the underside with orange-yellow." 



39. Belenois mesentina, Cram. 



A 3 from Khor Nubbaka, Nov. 12, 1904; two 3 3, 

 Kadugli, Dec, 23, 27, 1904. 



