52 Dr. G. B. Longstafi on 
will without doubt add many species to my list, more 
especially among the less conspicuous Lycaenidae and 
Hesperiidae, and will give new localities to many species 
already recorded. 
The following lists illustrate the relationship between 
the two faunas, and may, I hope, be instructive in other 
ways. The first (and longer) list gives all the butterflies 
for which I have records from Khartim up to Ad-Duwém ; 
the four shorter lists give the additional species met with 
for each 2° of latitude as one ascends the river. 
SPECIES RECORDED IN LatiTuDES 16° N.-14° N. 
(Khartiim to Ad-Duwém inclusive.) 
1. D. chrysippus A 45. T. chrysonome A 
4. P. cardw A 48. T. protomedia A 
5. P. cebrene A | 49. T. halimede A 
8. H. misippus A | 54. T. eupompe A 
19. P. baeticus A | 57. T. dara 
21. T. theophrastus A 59. T. ephyia 
25. C. eleusis _ 60. T. lagore A 
27. Z. lysumon A 65. C. florella A 
28, C. trochilus A 68. C. marnoana 
30. L. otacilia | 69. P. demodocus 
32. A. ubaldus A 71. S. elaminata ? * 
39. B. mesentina A | 72. P. nostradamus 
41. C. eulimene 
ADDITIONAL SPECIES RECORDED IN LATITUDES 
14° N.-12°N. 
(S. of Ad-Duwém to Gebel fin.) 
14. A. acerata 43. T. phisadia NA 
20. L. bobulus BL. orig N 
33. D. livia NA | 53. T. phlegyas te 
34. V. antalus N | 56. 7. evrppe Pk 
35. H. philippus 61. T. evarne P 
36. H. eriphia NA | 62. E. cleodora 
37. B. gidica 64. L. buquetia A 
42. T. calais NA | 66. T. senegalensis A 
* It is not stated where the Swedish expedition came across this 
butterfly. 
